IMT interest and expertise regarding methods of computational modelling of multifunctional materials

Interest in FP 6 call: 'Nanotechnologies and nanosciences, knowledge-based multifunctional materials and new production processes and

devices ‘ - FP6-2004-NMP-TI-4

Thematic area: NMP-2004-3.4.2.1-3

Methods of computational modelling of multifunctional materials:- ab-initio calculation - macroscopic finite element techniques- validation and use of computer models- dissemination- contribution to strength the links between different institutes and initiatives (national and EU projects)

Simulation, Modelling and Computer Aided Design Laboratory www.imt.ro

- determination of material parameters using FEM simulation for micro and nano materials, design optimization and topological optimization; reduced order modeling; VHDL models; computer models for design of complex geometries (surface roughness); simulation techniques for coupled field analysis of various MEMS and MOEMS. (Phys. Victor Moagar Poladian, victorm@imt.ro)

-application of numerical methods to electronic structure calculation and modelling of material properties. (Dr. Rodica Plugaru, rplugaru@imt.ro)

-using computers models for characterization of multifunctional materials (Mat. Oana Nedelcu and eng. Florina Ravariu, oanan@imt.ro)

- implementation of new methods on computational modeling for simulation of the multifunctional materials integrated into MEMS devices. (Phys. Catalin Tibeica, catalint@imt.ro)

Simulation, Modelling and Computer Aided Design Laboratory www.imt.ro

Expertise inExpertise in::

- structural analysis, mechanical, thermal analysis, electric and magnetic field analysis;- coupled field analysis of MEMS and MOEMS;- simulation and design of microfluidic components for biomedical applications;- neural networks, cellular automata, nanostructures.

Facilities:Facilities:- Coventor Ware 2004- ANSYS software- Multiprocessor workstation

- Using the above mentioned software our laboratory is carrying out activities of modelling and simulation as a support for the research work of the other laboratories.

Simulation, Modelling and Computer Aided Design Laboratory www.imt.ro

a) Top view b) Bottom viewDNA heating cycle: temperature distribution.

Some examples of simulations activity performed in our laboratory

Fabry-Perot cavity; Displacement under residual

stress.

Thermo-structural simulation of a structure for biomedical applications.

Dielectrophoretic microstructure (for DNA size separation) ; electric potential distribution of four pairs of plane parallel electrodes.

Porous SiO2 microstructure; Transient thermal simulation.

Temperature distribution on the device surface (p+n junction).

Simulation, Modelling and Computer Aided Design Laboratory www.imt.ro

International projects: FP6: PATENT(NoE/IST) – 3 grants in WP2-Modelling and Simulation, ASSEMIC (RTN)- WP 2-Microfluid handling

AFM images

(from WUT)

First step for re-generated surface (in ANSYS)

von Mises stress distribution at different depths in the

material

stress values on the peaks (thousands of MPa) for contact case

Simulation, Modelling and Computer Aided Design Laboratory www.imt.ro