Celal Soyarslan, PhD. Room W.12.108 Contact Information Chair of Solid Mechanics University of Wuppertal Gaußstr. 20 42119 Wuppertal Germany phone : +49 (0) 202-439-2074 e-mail : [email protected]Date of birth: 07.12.1977 Personal Information Place of birth: Elazı˜ g, Turkey Nationality: Turkish ResearchGate link: https://www.researchgate.net/profile/CelalSoyarslan Academia link: https://wwwuni-wuppertal.academia.edu/CelalSoyarslan Google Scholar link: https://scholar.google.com/CelalSoyarslan Research Topics • Morphological influences over material’s strength and symmetry of its physical prop- erties. • Micromechanical modeling and computational homogenization in modeling cellular materials especially nanoporous gold and its composites including surface elasticity effects • Instabilities in solid mechanics, more recently in bulk metallic glasses and metallic sheets showing various hardening mechanisms including cross hardening • Numerical and experimental investigation of deformation and fracture mechanisms in solids, especially in forming processes • Analysis and enhancement of sheet, bulk, and sheet-bulk metal forming processes using experimental, analytical, and numerical methods (especially finite element method) • Development of combined experimental-numerical methods for direct analytical and inverse numerical mechanical parameter identification methodologies for elastoplas- ticity and damage • Development of algorithms and implementation of user defined material subroutines for advanced material models including thermo-mechanical coupling Habilitation, Solid Mechanics Chair to be completed in 2019 Education • Bergische Universit¨ at Wuppertal Wuppertal, Germany • Thesis Topic: Phenomenological Modeling of Deformation and Fracture in Metal- lic Materials with Evolving Microstructures Ph.D., Civil Engineering December 2008 • Middle East Technical University Ankara, Turkey • Thesis Topic: Modeling Damage for Elastoplasticity • Advisers: Prof. Dr.-Ing. A. Erman Tekkaya, Prof. Dr. U˜ gurhan Aky¨ uz • Area of Study: Continuum Damage Mechanics and Metal Forming • CGPA: 4.0/4.0 C. Soyarslan 1 of 18 Curriculum Vitae
Transcript
Celal Soyarslan, PhD.
Room W.12.108ContactInformation Chair of Solid Mechanics
University of WuppertalGaußstr. 2042119 WuppertalGermany
Research Topics • Morphological influences over material’s strength and symmetry of its physical prop-erties.
• Micromechanical modeling and computational homogenization in modeling cellularmaterials especially nanoporous gold and its composites including surface elasticityeffects
• Instabilities in solid mechanics, more recently in bulk metallic glasses and metallicsheets showing various hardening mechanisms including cross hardening
• Numerical and experimental investigation of deformation and fracture mechanismsin solids, especially in forming processes
• Analysis and enhancement of sheet, bulk, and sheet-bulk metal forming processesusing experimental, analytical, and numerical methods (especially finite elementmethod)
• Development of combined experimental-numerical methods for direct analytical andinverse numerical mechanical parameter identification methodologies for elastoplas-ticity and damage
• Development of algorithms and implementation of user defined material subroutinesfor advanced material models including thermo-mechanical coupling
Habilitation, Solid Mechanics Chair to be completed in 2019Education
• Bergische Universitat Wuppertal Wuppertal, Germany• Thesis Topic: Phenomenological Modeling of Deformation and Fracture in Metal-
lic Materials with Evolving Microstructures
Ph.D., Civil Engineering December 2008
• Middle East Technical University Ankara, Turkey• Thesis Topic: Modeling Damage for Elastoplasticity• Advisers: Prof. Dr.-Ing. A. Erman Tekkaya, Prof. Dr. Ugurhan Akyuz• Area of Study: Continuum Damage Mechanics and Metal Forming• CGPA: 4.0/4.0
• Middle East Technical University Ankara, Turkey• Thesis Topic: A Generalized Finite Element Program for Hyperelastic Materials• Adviser: Prof. Dr. Ugurhan Akyuz• Area of Study: Computational Solid Mechanics• CGPA: 3.76/4.0
B.Sc., Civil Engineering June 2000
• Middle East Technical University Ankara, Turkey• Specialization in structural mechanics• CGPA: 3.44/4.0
B.Sc. (Honours), Mathematics July 2016
• Open University, Milton Keynes, United Kingdom• First-class Honours
Bergische Universitat Wuppertal, Wuppertal, GermanyAcademicAppointments Chair of Solid Mechanics
Scientific Researcher October 2016 to present
Technische Universitat Hamburg-Harburg, Hamburg, GermanyInstitut fur Kontinuumsmechanik und Werkstoffmechanik
Scientific Researcher November 2013 to October 2016
Technische Universitat Dortmund, Dortmund, GermanyInstitut fur Umformtechnik und Leichtbau
Founding Leader April 2011 to October 2013Applied Mechanics in Forming Technologies DepartmentAbteilung fur Angewandte Mechanik in der Umformtechnik
Postdoctoral Research Associate June 2009 to October 2013
Atılım University, Ankara, TurkeyDepartment of Manufacturing Engineering
Instructor October 2006 to April 2009
Middle East Technical University Ankara, TurkeyDepartment of Civil Engineering
Research Assistant September 2001 to September 2006
• Development and maintenance of an object-oriented finite element program forhyperelastic materials
• Research projects, including project proposal and final report preparation• Support of certain undergraduate course work
Continuous supervision of students at various levels and course offeringTeaching
• Preparation and presentation of the tutorials related to the finite elementprogram ABAQUS
• Content and competence: Complying with the main course schedule, pre-pared ABAQUS tutorials aim at teaching fundamental modeling skills,e.g., using the CAD/CAE environment of ABAQUS, forming model ge-ometry, material assignment, application of boundary conditions, selectionof finite elements, to the students.
• Nichtlineare Finite Elemente Methoden, WS 2018• Course design, lecturing, grading• Content and competence: Providing a strong background on the nonlin-
ear continuum mechanics, derivation of the finite element method for solidmechanics problems involving kinematical and material nonlinearities ispresented. The theory is complemented by ABAQUS tutorials. Thus, stu-dents not only possess a broad understanding of theoretical basics but alsogain sufficient practical skills on this widely used finite element software.
• Virtuelle Umformtechnik II, SS 2012/2013• Course design, lecturing, grading• Content and competence: Designed as a seminar course, advanced simula-
tion methods in non-conventional forming processes are covered. Studentspossess skills of making literature survey on a given advanced topic, de-velop modeling approaches for the selected problems from particularly inthe metal forming field and reporting their findings.
• Module 8: Advanced Simulation Techniques in Metal Forming (MMT III),SS 2011/2012, SS 2012/2013• Course design, lecturing, grading• Content and competence: Simulation methods in forming technology are
covered in depth. Students possess a broad understanding of theoreti-cal basics, possibilities, and limitations of simulation techniques, particu-larly in the metal forming field. The lecture, the accompanying seminars,project work, and exercises will extend the students’ analytical thinking,communication, and team-work skills.
• Module 3-1: Forming Technology I: Bulk Forming (MMT I), WS 2011/2012Lecture 05: Analytical Methods• Lecturing• Content and competence: In the given lecture analytical methods, such
as slab method and upper bound methods, used in solving metal formingproblems are explained with applications.
Atılım University, Ankara, Turkey
• Solid Mechanics, (MFGE212), SS 2007/2008, SS 2008/2009• Course design, lecturing, grading• Content and competence: The aim of this course is to introduce students to
the concepts of stresses and strain, shearing force, and bending as well astorsion and deflection of different structural elements; in addition to that,develop theoretical and analytical skills relevant for the areas mentioned.
• Numerical Methods, (MFGE301), WS 2007/2008, WS 2008/2009• Course design, lecturing, grading• Content and competence: This course is intended to discuss fundamen-
tal numerical (approximate) methods around solutions of nonlinear equa-tions of one or more variables and systems of simultaneous linear equa-tions, curve fitting and interpolations, integrations, solutions of ODEs and
PDEs, etc. Besides gaining skills on mathematical background of integral,differential and algebraic forms to be solved numerically, students are ex-pected to develop their programming skills. MATLAB is selected as aprogramming tool, which inludes a user friendly interface, robust graphicaltools, and many built-in functions serving practicality to the students.
• Practical Finite Element Analysis, (MFGE506), WS 2007/2008, WS 2008/2009• Course design, lecturing, grading• Content and competence: This course is intended to discuss fundamentals
of finite element method as a tool for solving linear problems of solidand structural mechanics. Besides gaining insight in the fundamentalmechanics and physical background of the problems, students are expectedto develop their mathematical and programming skills.
• Nonlinear Finite Element Analysis, (MFGE576), SS 2007/2008, SS 2008/2009• Course design, lecturing, grading• Content and competence: Simulation methods in forming technology are
covered in depth. Students possess a broad understanding of theoreti-cal basics, possibilities, and limitations of simulation techniques, particu-larly in the metal forming field. The lecture, the accompanying seminars,project work, and exercises will extend the students’ analytical thinking,communication, and teamwork skills.
Organizational and Academic Activities:InternationalActivities
• International Scientific Committee member and co-organizer of the minisymposium
MS3: Defects and damage prediction in forming processes in the 12th edition of NU-MIFORM conferences series (NUMIFORM2016), dedicated to the numerical meth-ods in industrial forming processes, held at the University of Technology of Troyesin France in July 4-7, 2016 (co-organized by UTT, ESI Group and Transvalor SA)
• Co-organizer (with Prof. A.E. Tekkaya and Dr. T. Balan (Ecole Nationale Superieured’Arts et Metiers, ENSAM)) of the German-French Summer School 2012, Harden-ing and Damage of Materials under Finite Deformations: Constitutive Modeling andNumerical Implementation, September 3-7, 2012
Journal Referee:
• Reviewer - Acta Materialia (AM)• Reviewer - International Journal of Solids and Structures (IJSS)• Reviewer - Philosophical Magazine (TPHM)• Reviewer - Engineering Fracture Mechanics (EFM)• Reviewer - International Journal of Mechanical Sciences (IJMS)• Reviewer - Materials Letters (MLBLUE)• Reviewer - Archive of Applied Mechanics (AAM)• Reviewer - Journal of Materials Processing Technology (JMPT) (Identified as ”one
of the top performing reviewers on the JMPT in 2011.”)• Reviewer - Journal of Alloys and Compounds (JALCOM)• Reviewer - International Journal of Applied Mechanics (IJAM)• Reviewer - Materials and Design (JMAD)• Reviewer - Materials• Reviewer - International Journal of Material Forming (IJFO)• Reviewer - Steel Research International (SRI)• Reviewer - Chinese Journal of Aeronautics (CJA)• Reviewer - International Journal of Mechatronics and Manufacturing Systems (JMMS)• Reviewer - International Conference of Technology of Plasticity (ICTP)
• Reviewer - International Journal of Materials and Product Technology (IJMPT)
Scientific Societies:
• Gesellschaft fur Angewandte Mathematik und Mechanik (GAMM)• OU Mathematics - M500 Society
Maßgeschneiderte Multiskalige Materialsysteme M3 B6 - ModellierungStudiedResearchProjectsat the ICM
und Simulation der Interphaseneigenschaften von Kompositwerkstoffen ausMetall und Polymer auf der Nanoskala
Summary of the project : Das hier beantragte Projekt ist ein Nachantrag im Rahmendes Sonderforschungsbereichs 986 Maßgeschneiderte multiskalige MaterialsystemeM3. Die Modellierung und Simulation von Werkstoffverhalten ist seit Jahrzehntenwichtiger Bestandteil ingenieur- und materialwissenschaftlicher Forschung. Metall-Polymer-Grenzflachen sowie deren nahere Umgebung unterscheiden sich in ihrenmechanischen Eigenschaften signifikant von den umgebenen Materialien, d.h. demMetall und dem Polymer. Der grenzflachennahe Bereich einschließlich der Gren-zflache stellt die Interphase dar. In nanostrukturierten Materialien ist der Anteil anGrenzflachen und Interphasen im Werkstoff deutlich hoher als in gewohnlichen Ma-terialien, so dass der Einfluss der Grenzflachen und Interphasen nicht vernachlassigtwerden kann. Folglich ist ein eigener Modellierungsansatz fur die Interphasen er-strebenswert, um eine moglichst genaue Materialmodellierung des nanostrukturi-erten Komposits zu erzielen. Das hier beantragte Projekt beschftigt sich schwer-punktmaßig mit Multiskalenmodellierung (Verknupfung von Nano- und Mikroebene)von neuartigen, hierarchischen Materialien. Der Fokus der Fragestellung liegt dabeiauf den mechanischen Eigenschaften in Grenzflachen nahen Bereichen. Im Gegen-satz zur Polymer-hauptmasse besitzen Interphasen strukturelle Inhomogenitatenund raumliche Gradienten in den Materialeigenschaften. Hier sollen spezielle In-terphasenelemente entwickelt werden, die zusatzliches Abgleiten der Interphasenund/oder Separationsverschiebungen erlauben. Primares Ziel der Ausarbeitung derkomplexen theoretischen Grundlagen sowie der sehr anspruchsvollen Implementie-rung ist die erfolgreiche Modellierung von Metall-Polymer-Interphasen in nanostruk-turierten Materialien basierend auf der Kontinuumsmechanik. Besonderer Wert wirdauf die Validierung durch experimentelle Daten in enger Zusammenarbeit mit denTeilprojekten des SFB 986 A2, A6, B2 und B4 sowie auf eine enge Zusammenarbeitmit den Modellierungsteilprojekten mit TP A4, A5 und B3 gelegt.
PAK250 TP4 - Identifikation und Modellierung der Werkstoffcharakteristikfur die Finite-Element-Analyse von Blechumformprozessen: Forderperiode2011 - 2013
Summary of the project : Das Ziel dieser Forschungsarbeiten ist es, die Erkennt-nisse der Mikrostruktur-Untersuchungen in die Werkstoffmodellierung des Umfor-mverhaltens von Blechwerkstoffen zu uberfuhren. Die Modellierung erfolgt dabeisowohl auf der Mikrostrukturebene (Langenskala µm) als auch auf der Makroebene(Langenskala mm). Fur diesen Zweck werden Spannungs-Dehnungskurven in Ver-suchen mit Belastungsumkehr und Wechsel der Belastungsart (z.B. einachsiger Zugzu zweiachsiger Zug) ermittelt. Diese Daten werden mit der Mikrostrukturentwick-lung eines Stahls und einer Aluminiumlegierung korreliert. Hierbei werden basierendauf werkstoffwissenschaftlichen Untersuchungen erweiterte kontinuumsmechanischeModelle entwickelt. Die Modelle berucksichtigen sowohl die Entwicklung der Ver-setzungsmikrostruktur als auch der Kornmikrostruktur und ihre Auswirkungen aufdas Umformverhalten. Elektronen-mikroskopische Aufnahmen werden mit Hilfe vonMethoden der digitalen Bildbearbeitung statistisch ausgewertet. Die Ergebnisse derdigitalen Bildbearbeitung werden mit Modellgroßen mikromechanisch-formulierter
C. Soyarslan 5 of 18 Curriculum Vitae
Modelle verglichen. Weiter werden die von Mikro- und Makromodellen vorherge-sagten Fließflachen verglichen und zur Verbesserung der Makromodelle herange-zogen. In diesem Teilprojekt liegt der Fokus auf den belastungspfadabhangigenModellen, die insbesondere in der Simulation von Blechumformprozessen eingesetztwerden sollen.
SFB-TR 73 Subproject C4 (in collaboration with Institut fur Werkstof-Co-supervisedResearchProjectsat the IUL
fkunde - Leibniz Universitt Hannover) - Phase 1 (completed) and Phase 2(ongoing) - Analysis of Load History-Dependent Evolution of Damage andMicrostructure for the Numerical Design of Sheet-Bulk Metal Forming Pro-cesses
Summary of the project : The application of conventional bulk forming operations onsheet blanks introduces an alternative forming approach for complex-shaped prod-ucts. A combined experimental and numerical investigation of microstructure de-velopment in the context of voidage during sheet-bulk metal forming is aimed at.Experimental studies cover mechanical material characterization and validation aswell as post mortem surface inspections where the void-driven destabilizing mecha-nisms leading to material fracture are being investigated. Numerical studies involvethe implementation and improvement of existing physically-based, advanced dam-age theories, which give account for normal as well as shear stress state dominatedmaterial deterioration, into finite element framework. In phase 1 of the project,which is successfully completed, Lemaitre’s isotropic damage model (within contin-uum damage mechanics phenomenological formalism) and Gurson’s porous plasticityis utilized. In the second phase, a Lemaitre variant damage anisotropy as well asGologanu and Leblond’s extension of the Gurson’s model for non-spherical voids willbe studied to give account for damage anisotropy in addition to plastic anisotropyof the sheets due to rolling. A database, which includes the quantitative formabilitylimits in bulk-sheet forming processes to assist the selection of the materials anddesign improvement in current applications, will also be developed.
German Academic Exchange Service (DAAD) - An Investigation of FailureMechanisms in Forming of Composite Plates
Summary of the project : In this project the focus is on investigations of failure mech-anisms in forming of monolithic metallic and metal/polymer/metal sandwich plates.In the first phase, main concentration is devoted to the modeling of various pro-cesses using finite element analysis. The mechanical behavior of the metallic layersis characterized by finite strain rate-independent elasto-plasticity in which progres-sive material deterioration and ductile fracture are modeled using continuum damagemechanics (CDM). This material model is made accessible via implementations asVUMAT subroutines for ABAQUS/Explicit. Possible failure of the thermoplasticpolymer which may lead to delamination of the metallic layers is modeled usingABAQUS built-in cohesive zone elements.
FOSTA - P 853 - Development of an Industry-Oriented Failure Model forSheet Metal Forming Simulations of Advanced High Strength Steels (AHSS)
Summary of the project : Despite their wide application in sheet metal forming anal-ysis, forming limit diagrams cannot supply reliable results for the cases involvingnon-proportional strain paths or material classes with reduced ductility such asadvanced high-strength steels. In the present study, a continuum damage model(Lemaitre model) is investigated in order to remedy the existing incapability in fail-ure prediction for these materials. The project aims at providing a methodology forfailure prediction in advanced high-strength steels, including the material charac-terization phase which involves a range of stress triaxiality ratios, i.e. tensile tests
C. Soyarslan 6 of 18 Curriculum Vitae
(with notched specimens), in-plane shear and Nakazima tests. For a validation ofthe methodology, deep drawing tests with several geometries will be conducted.
TE 508-21-1 - Damage Analysis and Prediction in Bending Processes
Summary of the project : The main objective of this project was to develop a re-liable damage model, based on continuum damage mechanics which can be usedin bending processes. This model should be able to predict where and when thedamage occurs. To reach this objective, experimental-numerical investigations havebeen performed. In experimental terms, different experiments for the identificationof plasticity and damage parameters are carried out using enhanced measurementtechniques to record the local and global fields. The numerical approach is based onfully coupled constitutive equations accounting for mixed non-linear isotropic andkinematic hardening, strongly coupled with isotropic ductile damage. Plasticity anddamage have been treated isotropically. Based on the experimental tensile test, theplasticity and damage parameters have been identified. The bending process hasbeen modeled and simulated. Simulations have shown promising results which canbe quantitatively and qualitatively compared to experiments.
Graduate School of Energy Efficient Production and Logistics - Creationof a Material Model for Numerical Investigations on Forming of LaminarThermoplastic Polymers
Summary of the project : Thermoplastic polymers can be formed at room tempera-ture, as earlier incremental sheet forming tests have shown. The aim of this projectis to characterize the deformation behavior of thermoplastics at room temperatureand to analyze the mechanical properties of cold-formed parts. Different sheet form-ing processes will be investigated numerically and experimentally. For the numericalinvestigation of cold forming of thermoplastics a visco-plastic material model, basedon the results of material characterization tests, is formulated and implemented in anFEM solver. The identification of material parameters is performed for three ther-moplastics, PVC, HDPE, and PC. Subsequently, this material model is verified withthree-dimensional simulations. For this purpose, cold-formed parts are producedand compared with the simulation results.
TE 508/18-1 - Phase 2 - Investigation and Improvement of a Manufactur-ing Process Chain Covering Cold Drawing Processes through to InductionHardening
Summary of the project : Within the scope of this German-Brazilian joint project,each production step of the cold drawing process, from initial material to the drawinghimself up to the induction hardening is investigated experimentally and numericallyand the reason for distortion is identified in order to provide remedy in the future.The subtask of the IUL consists in the implementation of FEM simulations of thedrawing process considering temperature influence and partially anisotropic materialbehavior to identify the relationship between residual stresses and distortion and toderive potentials for improving the process chain. In addition, disturbances as eccen-tricity, angular errors, and inhomogeneous distribution of lubricants are simulatedto examine their effects and to predict distortion.
PAK 250 Subproject 1 - Identification of Material Models as well as Cor-responding Parameters by Means of the Inverse Method and Novel Experi-mental Setups
Summary of the project : In the second period, subproject 1 of the research groupdeals with the analysis and development of experimental material tests to determinesubsequent yield loci for sheet materials. For this purpose, the in-plane torsion testwith full and twin bridge specimen is used. Both geometries are suitable for cyclic
C. Soyarslan 7 of 18 Curriculum Vitae
loadings. The full geometry provides multiple different shear curves from a singlespecimen. The twin bridge specimen is able to obtain shear loads with superim-posed normal stresses by arranging the slits at different radii. Another aim is to usean X-ray Diffractometer (XRD) for direct stress measurement on the specimen. Inaddition, the combination of this system with an optical measurement system fordetermining the complete deformation history of a material point will be realized(consisting of stress and strain components). Both systems will be utilized simul-taneously, in-situ and without relief of the sample for determining the initial andsubsequent yield loci.
SupervisedTheses
13. Leuther, Christoph Matthias, 2018, MSc Thesis at the Chair of Solid Mechanics at theSchool of Mechanical Engineering adn Safety Engineering - Wuppertal University,Original title: Finite Element Analyses of Fracture in Stochastic Brick-and-MortarMicrostructures: Soyarslan, C.; Bargmann, S.
12. Blumer, Vincent, 2018, Bachelorarbeit at the Chair of Solid Mechanics at the School ofMechanical Engineering and Safety Engineering - Wuppertal University, Original title:Elasticity of Material Microstructures Comprised of Regular and Stochastic Tubularand Solid Ligament Networks: A Computational Study; Supervisors: Soyarslan, C.;Bargmann, S. (Mr. Blumer received a FABU (Freunde und Alumni der BergischenUniversitat) Nachwuchspreise with this thesis.)
11. Lendt, Nele, 2016, Bachelorarbeit at the Institut fur Kontinuumsmechanik und Werk-stoffmechanik (ICM) - TUHH, Original title: A Comparative Study on the EffectiveProperties of Idealized Microstructures of Cellular Materials; Supervisors: Soyarslan,C.; Bargmann, S.
10. Skandarupan, Praveen, 2016, Bachelorarbeit at the Institut fur Kontinuumsmechanikund Werkstoffmechanik (ICM) - TUHH, Original title: Automatic MicrostructureGeneration for Voxel Based Finite Element Analysis of Nanoporous Materials; Su-pervisors: Soyarslan, C.; Bargmann, S.
9. Petershagen, Cristoph, 2016, MSc Thesis at the Institut fur Kontinuumsmechanik undWerkstoffmechanik (ICM) - TUHH, Original title: Modeling Osteoporotic Stress Frac-tures in Foot; Supervisors: Soyarslan, C.; Bargmann, S.; Morlock, M.M.
8. Bade, Nils, 2015, Bachelorarbeit at the Institut fur Kontinuumsmechanik und Werk-stoffmechanik (ICM) - TUHH, Original title: Experimentelle Untersuchung und FE-Modellierung der Nadelpenetration in Weichgewebe; Supervisors: Klusemann, B.;Soyarslan, C.
7. Kaya, Mustafa Erdem, 2014, Bachelorarbeit at the Institut fur Kontinuumsmechanikund Werkstoffmechanik (ICM) - TUHH, Original title: Analyse des Grenzformande-rungsdiagramms unter Betrachtung der Fließflachenkrummung; Supervisors: Kluse-mann, B.; Soyarslan, C.
6. Ni, Junjan, 2013, MSc Thesis at the Institut fur Umformtechnik und Leichtbau (IUL)- TU Dortmund, Original title: Implementation of forming and fracture simulationof sheet metal part in ABAQUS; Supervisors: Thesing, T. (Hella); Tekkaya, A. E.;Soyarslan, C.
5. Calısır, Murat, 2013, MSc Thesis at the Ruhr Universitat Bochum (RUB) and Institutfur Umformtechnik und Leichtbau (IUL) - TU Dortmund, Original title: NumericalInvestigations on the Effectiveness of the Alternative Formability Enhancement Meth-ods in Extrusion: Local heating, Ultrasonic assistance and Superimposed HydrostaticPressure; Supervisors: Steeb, H. (RUB); Soyarslan, C. (IUL).
C. Soyarslan 8 of 18 Curriculum Vitae
4. Sozumert, Emrah, 2013, MSc Thesis at the Ruhr Universitat Bochum (RUB) and at theInstitut fur Umformtechnik und Leichtbau (IUL) - TU Dortmund, Original title: Nu-merical Investigations of Tube Forming Processes Using Damage Coupled Plasticity;Supervisors: Hackl, K. (RUB); Tekkaya, A.E. (IUL); Hoppe, U. (RUB); Soyarslan,C. (IUL); Isik, K. (IUL).
3. Nguyen, Minh Khac, 2012, Student Thesis at the Institut fur Umformtechnik und Le-ichtbau (IUL) - TU Dortmund, Original title: FEM-basierte Analyse und Abgleichvon experimentellen Prufdaten zum Erstellen von Bruchkurven fur hochfeste Werk-stoffsorten FE analysis of experimental investigations to identify the fracture locusof advanced high-strength steels; Supervisors: Richter, H. (ThyssenKrupp Steel Eu-rope); Rosen, H. (ThyssenKrupp Steel Europe); Soyarslan, C.; Isik, K.
2. Isık, Kerim, 2010, MSc Thesis at the Institut fur Umformtechnik und Leichtbau (IUL) -TU Dortmund, Original title: Predictive Performances of Various Failure Criteria inFormability of Sheets; Supervisors: Richter, H. (ThyssenKrupp Steel Europe); Rosen,H. (ThyssenKrupp Steel Europe); Tekkaya, A. E.; Soyarslan, C.
1. Kayhan, Erdem, 2009, MSc Thesis at the Department of Manufacturing Engineering- Atılım University (Ankara), Original title: Application of viscous and non-localintegral type regularization schemes for softening plasticity: A small strain framework;Supervisor: Soyarslan, C.
Manuscriptsunder Review
3. Hahner, P.; Soyarslan, C.; Gulcimen, B.; Bargmann, S.: Development of a correlationto estimate yield and ultimate strength from small punch tests, Materials and Design.
2. Soyarslan, C.; Pradas, M.; Bargmann, S.: Effective elastic properties of 3D stochasticbicontinuous composites, Mechanics of Materials.
1. Soyarslan, C.; Blumer, V.; Bargmann, S.: Tunable auxeticity and elastomechanicalsymmetry in a class of very low density core-shell cubic crystals, Advanced Materials.
RefereedJournalPublications
38. Raza, S.H.; Soyarslan, C.; Bargmann, S.; Klusemann, B.: Computational modeling ofamorphous polymers: A Lagrangian logarithmic strain space formulation of a glass-rubber constitutive model, Computer Methods in Applied Mechanics and Engineering,Volume 344, Pages 887–909, 2019.doi:https://doi.org/10.1016/j.cma.2018.10.007
37. Soyarslan, C.; Argeso, H.; Bargmann, S.: Skeletonization-based beam finite elementmodels for stochastic bicontinuous materials: application to simulations of nanoporousgold, Journal of Materials Research, Volume 33, Issue 20, Pages 3371–3382, 2018.doi:https://doi.org/10.1557/jmr.2018.244
36. Perdahcioglu, S.; Soyarslan, C.; Asik, E.; Bargmann, S.; van den Boogaard, A. H.: Aclass of rate-independent lower-order gradient plasticity theories: implementation andapplication to disc torsion problem, Materials, Volume 11, Issue 8, 1425 (16 Pages),2018.doi:https://doi.org/10.3390/ma11081425
35. Bargmann, S.; Klusemann, B.; Markmann, J.; Schnabel, J.; Schneider, K.; Soyarslan,C.; Wilmers, J.: Generation of 3D representative volume elements (RVEs) for het-erogeneous materials: a review, Progress in Materials Science, Volume 96, Pages322–384, 2018.doi:https://doi.org/10.1016/j.pmatsci.2018.02.003
34. Soyarslan, C.; Bargmann, S.; Pradas, M.; Weissmuller, J.: 3D stochastic bicontinuousmicrostructures: Generation, topology and elasticity, Acta Materialia, Volume 149,Pages 326–340, 2018.doi:https://doi.org/10.1016/j.actamat.2018.01.005
33. Petershagen, C.; Soyarslan, C.; Gulcimen, B.; Bargmann, S.: A finite element studyon the influence of the ligaments on the internal stress development of foot skeleton,Journal of Coupled Systems and Multiscale Dynamics, Volume 5 (2), Pages 111–118,2017.doi:https://doi.org/10.1166/jcsmd.2017.1126
32. Soyarslan, C.; Gulcimen, B.; Bargmann, S.; Haehner, P.: Ductile fracture under large-scale yielding conditions: Experimental and computational study of the small punchtest, Materials, Volume 10, 1185 (19 Pages), 2017.doi:10.3390/ma10101185
31. Soyarslan, C.; Husser, E.; Bargmann, S.: Effect of surface elasticity on the elasticresponse of nanoporous gold, Journal of Nanomechanics and Micromechanics, Volume7, Number 4 (pages 04017013), 2017.doi:10.1061/(ASCE)NM.2153-5477.0000126
25. Soyarslan, C.; Gulcimen, B.; Bargmann, S.; Haehner, P.: Modeling of fracture in smallpunch tests for small- and large-scale yielding conditions at various temperatures,International Journal of Mechanical Sciences, Volume 106, Pages 266–285, 2016.doi:10.1016/j.ijmecsci.2015.12.007
24. Bargmann, S.; Soyarslan, C.; Husser, E.; Konchakova, N.: Materials based designof structures: computational modeling of the mechanical behavior of gold-polymernanocomposites, Mechanics of Materials, Volume 94, Pages 53–65, 2016.doi:10.1016/j.mechmat.2015.11.008
23. Soyarslan, C.; Richter, H.; Bargmann, S: Variants of Lemaitre’s damage model and theiruse in formability prediction of metallic materials, Mechanics of Materials, Volume92, Pages 58–79, 2016.doi:10.1016/j.mechmat.2015.08.009
21. Soyarslan, C.; Richter, H.; Bargmann, S.: Lode Parameter Dependence and Quasi-Unilateral Effects in Continuum Damage Mechanics: Models and Applications inMetal Forming, Key Engineering Materials, Volume 651-653, Pages 187–192, 2015.doi:10.4028/www.scientific.net/KEM.651-653.187
20. Yin, Q.; Soyarslan, C.; Isik, K.; Tekkaya, E.: A Grooved In-Plane Torsion Test for theInvestigation of Shear Fracture in Sheet Materials, International Journal of Solidsand Structures, Volume 66, Pages 121–132, 2015.doi:10.1016/j.ijsolstr.2015.03.032
19. Soyarslan, C.; Klusemann, B.; Bargmann, S.: A Directional Modification of the Levkovitch-Svendsen CrossHardening Model Based on the Stress Deviator, Mechanics of Mate-rials, Volume 86, Pages 21–30, 2015.doi:10.1016/j.mechmat.2015.03.003
18. Behrouzi, A.; Soyarslan, C.; Klusemann, B.; Bargmann, S.: Inherent and inducedanisotropic finite visco-plasticity with applications to the forming of DC06 sheets,International Journal of Mechanical Sciences, Volume 89, Pages 101–111, 2014.doi:10.1016/j.ijmecsci.2014.08.025
17. Yue, Z.M.; Soyarslan, C.; Badreddine, H.; Saanouni, K.; Tekkaya, A.E.: Identification offully coupled anisotropic plasticity and damage constitutive equations using a hybridexperimentalnumerical methodology with various triaxialities, International Journalof Damage Mechanics, 2014.doi:10.1177/1056789514546578
16. Isik, K.; Soyarslan, C.: Continuum Damage Mechanics (CDM) Based Local Approach tothe Sheet-Bulk Metal Formability Prediction, Advanced Materials Research, Volume769, Pages 205–212, 2013.
15. Ossenkemper, S.; Haase, M.; Soyarslan, C.; Jager, A.; Tekkaya, A.E.: Tool designinduced anisotropic flow behavior of hot extruded aluminum profiles, Key EngineeringMaterials, Volume 585, Pages 131–138, 2014.doi:10.4028/www.scientific.net/KEM.585.131
14. Sammer, A.Y.; Soyarslan, C.; Haupt, P.; Kwiatkowski, L., A.; Tekkaya, A.E.: A simplefinite strain non-linear visco-plastic model for thermoplastics and its application tothe simulation of incremental cold forming of polyvinylchloride (PVC), InternationalJournal of Mechanical Sciences, Volume 66, Pages 192–201, 2013.doi:10.1016/j.ijmecsci.2012.11.007
13. Yue, Z.M.; Soyarslan, C.; Badreddine, H.; Saanouni, K.; Tekkaya, A.E.: Inverse identifi-cation of CDM model parameters for DP1000 steel sheets using a hybrid experimental-numerical methodology spanning various stress triaxiality ratios, Key EngineeringMaterials, Volume 554–557, Pages 2103–2110, 2013.doi:10.4028/www.scientific.net/KEM.554-557.2103
12. Becker, C.; Isik, K.; Bayraktar, A.; Chatti, S.; Hermes, M.; Soyarslan, C.; Tekkaya, A.E.:Numerical investigation of the incremental tube forming process, Key EngineeringMaterials, Volume 554–557, Pages 664–670, 2013.doi:10.4028/www.scientific.net/KEM.554-557.664
11. Guner, A.; Soyarslan, C.; Brosius, A.; Tekkaya, A.E.: Characterization of anisotropyof sheet metals employing inhomogeneous strain fields for Yld2000-2D yield function,International Journal of Solids and Structures, Volume 49, Issue 13, Pages 3517–3527,2012.doi:10.1016/j.ijsolstr.2012.05.001
10. Soyarslan, C.; Malekipour Gharbi, M.; Tekkaya, A.E.: A combined experimental-numerical investigation of ductile fracture in bending of a class of a ferritic-martensiticsteel, International Journal of Solids and Structures, Volume 49, Issue 13, Pages 1608–1626, 2012.doi:10.1016/j.ijsolstr.2012.03.009
9. Qing, Y.; Soyarslan, C.; Guner, A.; Brosius, A.; Tekkaya, A.E.: A Cyclic Twin BridgeShear Test for the Identification of Kinematic Hardening Parameters, InternationalJournal of Mechanical Sciences, Volume 59, Issue 1, Pages 31–43, 2012.doi:10.1016/j.ijmecsci.2012.02.008
8. Oyar, P.; Soyarslan, C.; Can, G.; Demirci, E.: Finite element analysis of stress distribu-tion on modified retentive tips of bar clasp, Computer Methods in Biomechanics andBiomedical Engineering , Volume 15, Issue 6, Pages 609-613, 2012.doi:10.1080/10255842.2011.554406
7. Malekipour Gharbi, M.; Labergere, C.; Badreddine, H.; Soyarslan, C.; Weinrich, A.;Hermes, M.; Chatti, S.; Sulaiman, H.; Saanouni, K.; Tekkaya, A.E.: AdvancedExperimental-Numerical Investigations of Cold Bending of High Strength Steels, SteelResearch International, Special Edition for International Conference on Technologyof Plasticity (ICTP) 2011, Pages 877–882, 2011.
6. Soyarslan, C.; Faßmann, D.P.F.; Plugge, B.; Isık, K.; Kwiatkowski, L.; Schaper, M.;Brosius, A.; Tekkaya, A.E.: An Experimental and Numerical Assessment of Sheet-Bulk Formability of Mild Steel DC04, ASME-Journal of Manufacturing Science andEngineering - Special Issue on Advances in Plastic Forming of Metals, Volume 133,Issue 6, 2011.doi:10.1115/1.4004852
5. Guner, A.; Qing Y.; Soyarslan, C.; Brosius, A.; Tekkaya, A.E.: Inverse method foridentification of initial yield locus of sheet metals utilizing inhomogeneous deformationfields, International Journal of Material Forming, Volume 4-2, Pages 121–128, 2010.doi:10.1007/s12289-010-1009-4
4. Soyarslan, C.; Tekkaya, A.E.: Finite deformation plasticity coupled with isotropic dam-age: Formulation in principal axes and applications, Finite Elements in Analysis andDesign, Volume 46, Issue 8, Pages 668–683, 2010.doi:10.1016/j.finel.2010.03.006
3. Soyarslan, C.; Tekkaya, A.E.: A damage coupled orthotropic finite plasticity model forsheet metal forming: CDM approach, Computational Materials Science, Volume 48,Issue 1, Pages 150–165, 2010.doi:10.1016/j.commatsci.2009.12.022
2. Soyarslan, C.; Tekkaya, A.E.: Prevention of internal cracks in forward extrusion bymeans of counter pressure: a numerical treatise, Steel Research International, Volume80, Issue 9, Pages 671-679, 2009.doi:10.2374/SRI08SP170
1. Soyarslan, C.; Tekkaya, A.E.; Akyuz, U.: Application of Continuum Damage Mechanicsin discontinuous crack formation: forward extrusion chevron predictions, Z. Angew.Math. Mech., Volume 88, Issue 6, Pages 436-453, June 2008.doi:10.1002/zamm.200800013
2. Soyarslan, C.; Tekkaya, A.E.; Akyuz, U.: Soguk dovmede Surekli Ortamlar HasarMekanigi (SOHM) uygulamalari: Kısım 2: Ekstruzyonda v-seklindeki Merkezi kırıkolusumunun onlenmesi, Makina Tasarım ve Imalat Dergisi, (in Turkish), Title trans-lation: Continuum Damage Mechanics (CDM) Applications in cold forging: Part 2:Prevention of v-shaped central crack occurrence in extrusion, 2009.
1. Soyarslan, C.; Tekkaya, A.E.; Akyuz, U.: Soguk dovmede Surekli Ortamlar HasarMekanigi (SOHM) uygulamalari: Kısım 1: Ekstruzyonda v-seklindeki merkezi kırıkolusumunun modellenmesi, Makina Tasarım ve Imalat Dergisi, (in Turkish), Titletranslation: Continuum Damage Mechanics (CDM) applications in cold forging: Part1: Modeling v-shaped central cracks in extrusion, 2009.
ConferenceProceedingsandOralPresentations
26. Hahner, P.; Soyarslan, C.; Gulcimen, B.; Bargmann, S.: A numerical-based scheme fordetermining tensile yield stresses from Small Punch tests, EUROMAT2019, Stock-holm / Sweden, September 1–5, 2019.
25. Soyarslan, C.; Pradas, M.; Bargmann, S: 3D Stochastic Bicontinuous Composites: De-termination of Effective Elastic Properties through Computational Homogenization,13th World Congress on Computational Mechanics WCCM2018, New York / USA,July 22–27, 2018.
24. Soyarslan, C.; Perdahcioglu, S.; van den Boogaard, A. H.; Bargmann, S.: Implementa-tion and Application of a Gradient Enhanced Crystal Plasticity Model, ESAFORM2017,Dublin City University, Ireland, April 26–28, 2017.
23. Husser, E.; Soyarslan, C.; Bargmann, S.: Size effects in nanoporous materials andpolymer-infiltrated nanocomposites: A numerical study, 23rd International Sympo-sium on Metastable, Amorphous and Nanostructured Materials - ISMANAM 2016,Tohoku University, Sendai, Japan, July 3–8, 2016.
22. Perdahcioglu, S.; Soyarslan, C.; van den Boogaard, A. H.; Bargmann, S.: A GradientEnhanced Physically Based Plasticity: Implementation and Application to a ProblemPertaining Size Effect, ESAFORM2016, Nantes, France, April 27–29, 2016.
21. Hahner, P.; Holmstrom, S.; Soyarslan, C.; Gulcimen, B.; Bruchhausen, M.; Bargmann,S.: On the Mechanical Property Determination from Small Punch Tests, ASME 2016PVP Pressure Vessels & Piping Conference, Vancouver, British Columbia, Canada,July 17–21, 2016.
20. Husser, E.; Soyarslan, C.; Bargmann, S.: The mechanical behavior of gold-polymernanocomposites: a numerical study, XXIV ICTAM, Montreal, Canada, August 22–26 2016.
19. Soyarslan, C.; Richter, H.; Bargmann, S.: Lode Parameter Dependence and Quasi-Unilateral Effects in Continuum Damage Mechanics: Models and Applications inMetal Forming, ESAFORM2015, Graz, Austria, April 15–17, 2015.
18. Soyarslan, C.; Gulcimen, B.; Bargmann, S.; Haehner, P.: Modeling Fracture in SmallPunch Test at Various Temperatures, EMMC14 - European Mechanics of MaterialsConference, Gothenburg, Sweden, August 27–29, 2014.
17. Yue, Z.M.; Soyarslan, C.; Badreddine, H.; Saanouni, K.; Tekkaya, A.E.: On the Distor-tion of Yield Surface under Complex Loading Paths in Sheet Metal Forming, IDDRG2014 Conference, Paris/France, June 1–4, 2014.
16. Soyarslan, C.; Richter, H.; Bargmann, S.: Variants of Lemaitre’s Damage Model andTheir Use in Formability Prediction of Metallic Materials, GAMM2014 (85th AnnualMeeting of GAMM), Erlangen, Germany, March 9–14, 2014.
C. Soyarslan 13 of 18 Curriculum Vitae
15. Behrouzi, A.; Klusemann, B.; Soyarslan, C.; Bargmann, S.: Evolution of DC06 yieldsurface under cross loading, GAMM2014 (85th Annual Meeting of GAMM), Erlangen,Germany, March 9–14, 2014.
14. Isik, K.; Soyarslan, C.; Tekkaya, A. E., Doig, M.; Eßer, G.: Formability assessment ofadvanced high strength steel sheets using (an)isotropic Lemaitre’s damage model. 20.Schsische Fachtagung Umformtechnik, Dresden/Germany, November 27–28, 2013.
13. Doig, M.; Isik, K.; Soyarslan, C.; Richter, H.: Towards Ductile Damage Predictions ofAdvanced High Strength Steels. Tools and Technologies for Processing Ultra HighStrength Materials, TTP 2013 - Tools and Forming, Graz/Austria, September 19–20,2013.
12. Isik, K.; Soyarslan, C.; Tekkaya, E.: Continuum Damage Mechanics (CDM) Based LocalApproach to the Sheet-Bulk Metal Formability Prediction. In: WGP Kongress 2013,Erlangen/Germany, July 23–24, 2013.
11. Chen, L.; Soyarslan, C.; Tekkaya, A.E.: A Numerical Study on Intended and Un-intended Failure Mechanisms in Blanking of Sandwich Plates, NUMIFORM 2013,Shenyang/China, July 6–10, 2013.
10. Yue, Z.M.; Soyarslan, C.; Badreddine, H.; Saanouni, K.; Tekkaya, A.E.: An InverseIdentification of CDM Model Parameters for DP1000 Steel Sheets Following a Hy-brid Experimental-Numerical Methodology Spanning Various Stress Triaxiality Ra-tios, ESAFORM 2013, Aveiro/Portugal, April 22–24, 2013.
9. Becker, C.; Isik, K.; Bayraktar, A.; Chatti, S.; Hermes, M.; Soyarslan, C.; Tekkaya,A.E.: Numerical Investigation of the Incremental Tube Forming Process, ESAFORM2013, Aveiro/Portugal, April 22–24, 2013.
8. Malekipour Gharbi, M.; Soyarslan, C.; Hermes, M.; Brosius, A.; Tekkaya, A.E.: FailureAnalysis in Bending of a Class of High Strength Steel Sheets Using Porous Plasticity,TTP 2011 - Tools and Forming, Graz/Austria, September 19–21, 2011.
7. Malekipour Gharbi, M.; Labergere, C.; Badreddine, H.; Soyarslan, C.; Weinrich, A.;Hermes, M.; Chatti, S.; Sulaiman, H.; Saanouni, K.; Tekkaya, A.E.: AdvancedExperimental-Numerical Investigations of Cold Bending of High Strength Steels, In-ternational Conference on Technology of Plasticity (ICTP) 2011, Aachen/Germany,September 25–30, 2011.
5. Soyarslan, C.; Malekipour Gharbi, M.; A.; Tekkaya, A.E.: On Shear Enhanced Variantsof Gurson’s Damage Model and Their use in Sheet Metal Forming Simulations, Cou-pled Problems in Science and Engineering (Coupled 2011), Kos/Greece, June 20–22,2011.
4. Isik, K.; Soyarslan, C.; Richter, H.; Tekkaya, A.E.: Analysis of formability of advancedhigh strength steel sheets with phenomenologically based failure criteria with separatetreatment of instability, shear and normal fracture, In: LS-DYNA 8th European UsersConference, Strasbourg/France, May 23–24, 2011.
3. Soyarslan, C.; Tekkaya, A.E.: A Damage Coupled Orthotropic Finite Plasticity Modelfor Sheet Metal Forming, 5th International Conference on Design and Production ofMachines and Dies / Mold, Kusadasi/Turkiye, June 18–20, 2009.
C. Soyarslan 14 of 18 Curriculum Vitae
2. Onder, E.; Soyarslan, C.; Baranoglu, B.; Senaltun, M.; Tekkaya, A.E.: Spring-back Es-timation of an Automotive Part: Comparison of Numerical Simulations with Experi-mental Results, 5th International Conference on Design and Production of Machinesand Dies / Mold, Kusadasi/Turkiye, June 18–20, 2009.
1. Soyarslan, C.; Tekkaya, A.E.: Analysis of Damage in Metal Forming, InternationalConference on Technology of Plasticity (ICTP) 2008, Gyeungju/Korea, September7–11, 2008.
TalksandPosterPresentations
22. Soyarslan, C.; Wilmers, J.; Griffiths, E.; Pradas, M.; Weissmuller, J.; S. Bargmann:Computational Modelling of Interpenetrating Composites, Sitzung AK Mikrostruk-turmechanik 2018, Wuppertal / Germany, December 5, 2018.
21. Soyarslan, C.; Pradas, M.; Weissmuller, J.; Bargmann, S: Computational Modelling ofInterpenetrating Composites, Generation of 3D Microstructures and RepresentativeVolume Elements, Workshop on Microstructure Generation, Wuppertal / Germany,December 4, 2018.
19. Soyarslan, C.; Gulcimen, B.; Bargmann, S.; Haehner, P.: Modelling Ductile-BrittleTransition in Small Punch Test, 8th GAMM-Seminar on Multiscale Material Mod-elling, Hamburg / Germany, July 04, 2014.
18. Soyarslan, C.; Gulcimen, B.; Bargmann, S.; Haehner, P.: (Poster Presentation) Model-ing Fracture in Small Punch Test at Various Temperatures, DGM Meeting, Germany,July 23, 2014.
17. Soyarslan, C.: Local Approach to Ductile Fracture: Models, Experimental Characteriza-tion and Metal Forming Applications, Seminar Helmholtz-Zentrum, Geesthacht / Ger-many, November 20, 2013.
16. Soyarslan, C.: Successive Modifications of Lemaitre’s Damage Model and Their Conse-quences in Formability Prediction of Metallic Materials, Seminar Fraunhofer IWM,Freiburg / Germany, July 26, 2013.
15. Soyarslan, C.: Top-down Ductile Fracture Approaches in the Formability Prediction ofMetal Forming Processes, SFB/TR73 Simulation Arbeitskreistreffen, Dortmund / Ger-many, April 30, 2013.
14. Isik, K.; Doig, M.; Soyarslan, C.; Richter, H.; Tekkaya, A.E.: (Poster Presentation)On Damage Prediction in Sheet Metal Forming Processes of Advanced High StrengthSteels, In: 4. International Conference on Accuracy in Forming Technology / 19.Schsischen Fachtagung Umformtechnik, Chemnitz / Germany, November 13–14, 2012.
13. Soyarslan, C.; Tekkaya, A.E.: (Keynote Speech) Simulation of Localization, Damageand Fracture in Free Bending of AHSS Sheets using CDM, In: 7th ICFG Workshopon Process Simulation in Metal Forming, Gifu / Japan, September 12–14, 2012.
12. Qing, Y.; Guner, A.; Soyarslan, C.; Brosius, A.; Tekkaya, A.E.: Characterization ofHardening and Damage Behaviour of Sheet Metals, STC-F Session CIRP GeneralAssembly, Hong Kong / China, August 24, 2012.
11. Soyarslan, C.; Isik, K.; Tekkaya, A.E.: Modellierung der Schdigung in der Umformtech-nik, In: Karlsruher Werkstoffkolloquium, Karlsruhe / Germany, January 24, 2012.
C. Soyarslan 15 of 18 Curriculum Vitae
10. Tekkaya, A.E.; Guzel, A.; Soyarslan, C.: Progress in Modeling and Simulation of Form-ing Technology, In: High-level International Symposium on Cutting-edge Technologyof Digital Design and Manufacturing, Beijing / China, November 5–7, 2011.
9. Soyarslan, C.; Tekkaya, A.E.: Local Approach to Fracture in Metal Forming: Modelsand Applications, In: Simufact (Hrsg.): 12. Roundtable Simulation in der Massivum-formung, Bamberg / Germany, September 27–30, 2010.
8. Soyarslan, C.; Tekkaya, A.E.: Schdigungsmodelle in der Strukturmechanik mit beson-derer Anwendung in der Umformtechnik, Institut fur Baustatik und Baudynamik, In:Institut fur Baustatik und Baudynamik, Universitt Stuttgart, Stuttgart / Germany,June 05–07, 2010.
7. Soyarslan, C.; Tekkaya, A.E.: Damage in Cold Forward Rod Extrusion, InternationalConference on New Developments in Forging Technology, Fellbach-Stuttgart / Ger-many, May 12–13, 2009.
6. Tekkaya, A.E; Soyarslan, C.: Failure prediction methods for cold bulk metal forming,3rd Forming Technology Forum Zurich 2009 - Constitutive Modeling of Kinematic andAnisotropic Hardening Effects of Ductile Materials, Ruschlikon (Zurich) / Switzer-land, May 5–6, 2009.
5. Soyarslan, C.; Tekkaya, A.E.: Chevron Cracks in Extrusion: Modelling and Preven-tion, Proceedings of the 5th JSTP International Seminar on Precision Forging, Ky-oto / Japan, March 16–19, 2009.
4. Soyarslan, C.; Tekkaya, A.E.; Anik, B.: Metal Sekillendirmede Hasar Analizi, TurkiyeABAQUS Users Conference 2008, Istanbul / Turkiye (in Turkish), November 6–7,2008.
3. Soyarslan, C.; Tekkaya, A.E.: Vorhersage von Schadigung in kaltumgeformten Bauteilen,ICFG Workshop Eigenschaften von kaltumgeformten Bauteilen, Dortmund / Deutsch-land, July 10, 2008.
2. Soyarslan, C.; Tekkaya, A.E.: Modeling of Damage in Cold Forging, FEM-Anwender-treffen, Industrieverband Massivumformung, Meinerzhagen / Deutschland, April 23,2008.
1. Soyarslan, C.; Tekkaya, A.E.: Modeling of Damage in Cold Forging, 11. WorkshopSimulation in der Umformtechnik, Stuttgart / Deutschland, March 11–14, 2008.
TechnicalReports
4. Akyuz, U.; Tekkaya, A.E.; Soyarslan, C.; Groche, P.; Rathmann, T.: Plastisite IcinHasar Kavramının Modellenmesi, Project No: MISAG-JULICH 04, Project Supervi-sors: Akyuz, U.; Groche, P., Tubitak ile Almanya Julich Arastırma Merkezi arasındakiisbirligi cercevesinde yurutulen ODTU ve Darmstadt Teknik Universitesi ortak pro-jesi, (in Turkish), Title translation: Modeling Damage for Plasticity, 2006.
3. Akyuz, U.; Tekkaya, A.E.; Soyarslan, C.: Plastisite Icin Hasar Kavramının Modellen-mesi, Project No: BAP.2005.03.03.10, Project Supervisor: Akyuz, U., Middle EastTechnical University, Department of Civil Engineering, (in Turkish), Title translation:Modeling Damage for Plasticity, 2006.
2. Akyuz, U.; Turer, A.; Soyarslan, C.: Prefabrike Kosk Binasının Analitik ve DeneyselIncelemesi, Project No: 04-03-03-2-00-04, Project Supervisor: Akyuz, U., Middle EastTechnical University, Department of Civil Engineering, (in Turkish), Title translation:An Analytical and Experimental Investigation of a Prefabricated Building, 2004.
C. Soyarslan 16 of 18 Curriculum Vitae
1. Akyuz, U.; Ertepinar, A.; Guzey, S.; Pınarbasi, S.; Soyarslan, C.: Sismik IzolasyonMalzemesi Kaucuk Yastıklarin Elastomekanik Ozelliklerinin Deneysel ve Teorik Yon-temlerle Belirlenmesi, Project No: BAP.01.03.03.07, Project Supervisor: Akyuz, U.,Middle East Technical University, Department of Civil Engineering, Title translation:Determination of Elasto-mechanical Properties of Rubber Paddings used as SeismicIsolation Materials, (in Turkish), 2003.
Others 2. Soyarslan, C.; Tekkaya: Finite Element Method, CIRP Encyclopedia of ProductionEngineering, Pages 508–514, 2014.
1. Brosius, A.; Soyarslan, C.; Stiemer, M.; Isik, K.; Faßmann, D.; Sieczkarek, P.; Tekkaya,A.E.; Blum, H.; Schaper, M.; Bach, F.: Numerische und metallurgische Analyseder Werkstoffschadigung in der Blechmassivumformung. In: M. Merklein, Fr.-W.Bach, A.E. Tekkaya (Hrsg.): Tagungsband zum 1. Workshop Blechmassivumformung,Pages 33–50, 2011.
AttendedVerifiedOnlineCourses
MITx - Cellular Solids 1 - 3.054.1x: Structures, Properties and EngineeringApplicationstaught by Professor Lorna J. Gibson, Matoula S. Salapatas Professor of Materials Sci-ence and Engineering Professor of Mechanical Engineering, MIT, May January 27 –March 30, 2016.
Main Topics
• How cellular solids are made• How to characterize the microstructure of cellular solids• How to model the mechanical behavior of honeycombs and foams• Application of the models in devices for energy absorption and sandwich panels
Damage Mechanics and Local Approach to FractureAttendedAdvancedCourses
organized by Professor Jacques Besson, Materials Ageing Institute (MAI), EDF R&DSite des Renardieres, Moret-sur-Loing, France, May 25–28, 2010.
Main Topics
• Failure mechanisms• Mechanical testing• Rupture criteria (brittle/ductile)• Modelling of brittle/quasi-brittle damage• Modelling of ductile damage• Localisation phenomena and regularization
Modeling of Localized Inelastic Deformationtaught by Professor Milan Jirasek, Prague, Czech Republic, September 14–18, 2009.
CISM course: Multiscale Modelling and Design of New Materialscoordinated by Tarek Zohdi (University of California, Berkeley, CA, USA), Udine, Italy,July 4–8, 2005.
