Improved mapping workflow with HM 11 8. November 2011 Dipl.-Ing.M. Meyer, M. Eng. D. Pielok, Dipl.-Ing. M. Heuse (all Faurecia) Dipl.-Ing. G. de los Rios, Dipl.-Ing. A. Hülsmann (all Altair)
Transcript
1. Improved mapping workflow with HM 11Dipl.-Ing.M. Meyer, M.
Eng. D. Pielok, Dipl.-Ing. M. Heuse (all Faurecia) Dipl.-Ing. G. de
los Rios, Dipl.-Ing. A. Hlsmann (all Altair) 8. November 2011
2. Improved mapping workflow with HM 11 Content
Shortintroduction on Faurecia Mapping workflow Actual workflow New
approach Part1: Results with HyperMesh 11 RIS HyperForm 11 Part 2:
Parameter local bending Part 3: Parameter blank holder force Part
4: Parameter holes Part 5: variation of forming mesh sizeProperty
of Faurecia - Duplication prohibited Conclusion 5th European HTC
Users Conference, Bonn November 2011 M. Meyer / FAS Tools &
Methods 2
3. Improved mapping workflow with HM 11 Content
Shortintroduction on Faurecia Mapping workflow Actual workflow New
approach Part1: Results with HyperMesh 11 RIS HyperForm 11 Part 2:
Parameter local bending Part 3: Parameter blank holder force Part
4: Parameter holes Part 5: variation of forming mesh sizeProperty
of Faurecia - Duplication prohibited Conclusion 5th European HTC
Users Conference, Bonn November 2011 M. Meyer / FAS Tools &
Methods 3
4. Improved mapping workflow with HM 11 Faurecia overview 2010
key figures The worlds top automotive equipment suppliers 75,000
employees* (2009 revenues b) 238 sites 1- Denso 2- Bosch 33
countries 3- Conti 4- Aisin Seiki Group revenues: 13.8 billion 5-
Magna 6- Faurecia* 11,4 7- Delphi 38 R&D centers 8- ZF 9-
Faurecia 2008 4,500 R&D engineers and 9- JCI auto 11- TRW
technicians 10- Thyssen Krupp 12- BASF 300 patents filed in 2010
13- Valeo Annual R&D budget: 1 billion 14-Yazaki N6Property of
Faurecia - Duplication prohibited 15- Lear 16- Toyota Boshoku
worldwide 17- Mobis Listed on Euronext Paris 18- JTEKT equipment
(SBF 120 - compartment A) 19- Hitachi supplier 20- Sumitomo
electric *4 BGs + HQ 5th European HTC Users Conference, Bonn
November 2011 M. Meyer / FAS Tools & Methods 4
5. Improved mapping workflow with HM 11 2010 revenues by
Business Group n2 worldwide 1.3 bn n1 worldwide 10% 4.8 bn 35% 22%
Group revenues 13.8 bnProperty of Faurecia - Duplication prohibited
n1 worldwide 33% n1 worldwide 3.1 bn in mechanisms 4.6 bn 5th
European HTC Users Conference, Bonn November 2011 M. Meyer / FAS
Tools & Methods 5
6. Improved mapping workflow with HM 11 Faurecia Seating key
figures 2010Property of Faurecia - Duplication prohibited 5th
European HTC Users Conference, Bonn November 2011 M. Meyer / FAS
Tools & Methods 6
7. Improved mapping workflow with HM 11 Content
Shortintroduction on Faurecia Mapping workflow Actual workflow New
approach Part1: Results with HyperMesh 11 RIS HyperForm 11 Part 2:
Parameter local bending Part 3: Parameter blank holder force Part
4: Parameter holes Part 5: variation of forming mesh sizeProperty
of Faurecia - Duplication prohibited Conclusion 5th European HTC
Users Conference, Bonn November 2011 M. Meyer / FAS Tools &
Methods 7
8. Improved mapping workflow with HM 11 Problem: actual
workflow Crash department Stamping department Stamping model Crash
model one step One step Additional Crash simulation without mapping
simulation simulation Time issue Thinning ? Buckling of parts ?
Plastic strain ? Mapping with one step solver Issue: Efficiency and
flexibility in project Stamping modelProperty of Faurecia -
Duplication prohibited multi step Buckling of mapped parts ?
Element based geometry change w/o CAD file Change of part thickness
and Multi step Mapping with incremental solver material simulation
5th European HTC Users Conference, Bonn November 2011 M. Meyer /
FAS Tools & Methods 8
9. Improved mapping workflow with HM 11 New approach Crash
department Crash model One step simulation Hyperform in HM 11 Crash
simulation with one step mapping for all parts in force flow
Stamping department Stamping model Buckling of mapped parts
?Property of Faurecia - Duplication prohibited multi step Multi
step Mapping with incremental solver simulation 5th European HTC
Users Conference, Bonn November 2011 M. Meyer / FAS Tools &
Methods 9
10. Improved mapping workflow with HM 11 New approach in HM 11
Workflow in HM 11: Create crash model with all (material, contact,
fastener, etc.) Start Result Implementation Solver (RIS) tool in HM
Choose parts for mapping Mesh, material and part thickness are
taken from crash model More then 1 can be chosen One step solver
starts Result: equivalent plastic strain and thicknessProperty of
Faurecia - Duplication prohibited 5th European HTC Users
Conference, Bonn November 2011 M. Meyer / FAS Tools & Methods
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11. Improved mapping workflow with HM 11 New approach in HM 11
Positive: Mapping one step will be standard for all parts Less
crash simulations Faster time to implement one step mapping (>5
min per part) No need of additional meshing No need of CAD No need
of additional material database Easy handling of tool, no need of
stamping knowledge No need of additional license Negative:
Additional simulations for FEA pilotsProperty of Faurecia -
Duplication prohibited No check from stamping department if
stamping results are ok One step simulation is done twice for
formability check by stamping department and for mapping by crash
department 5th European HTC Users Conference, Bonn November 2011 M.
Meyer / FAS Tools & Methods 11
12. Improved mapping workflow with HM 11 Content
Shortintroduction on Faurecia Mapping workflow Actual workflow New
approach Part1: Results with HyperMesh 11 RIS HyperForm 11 Part 2:
Parameter local bending Part 3: Parameter blank holder force Part
4: Parameter holes Part 5: variation of forming mesh sizeProperty
of Faurecia - Duplication prohibited Conclusion 5th European HTC
Users Conference, Bonn November 2011 M. Meyer / FAS Tools &
Methods 12
13. Improved mapping workflow with HM 11 Master thesis:
September 2010 February 2011 Task of the study: Validation of new
work flow 4 typical seat parts Static load case Deformation
represents real deformation from crash test Master thesis is in
cooperation with Altair Germany pull directionProperty of Faurecia
- Duplication prohibited fixation 5th European HTC Users
Conference, Bonn November 2011 M. Meyer / FAS Tools & Methods
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14. Improved mapping workflow with HM 11 Part 1: HyperMesh 11
result Comparison: Base model w/o mapping Mapping with forming
suite results (one step) Mapping with LS-Dyna results (multi step)
Mapping with RIS tool in HW 11 Target: RIS tool in HM 11 should
reach: Minimum: forming suite result mapping Maximum: LS-Dyna
result mappingProperty of Faurecia - Duplication prohibited 5th
European HTC Users Conference, Bonn November 2011 M. Meyer / FAS
Tools & Methods 14
15. Improved mapping workflow with HM 11 Part 1: HyperMesh 11
result Difference between FS and Dyna Difference between HM and
Dyna Dplast strain = Dyna FSProperty of Faurecia - Duplication
prohibited Dplast strain = Dyna HM 5th European HTC Users
Conference, Bonn November 2011 M. Meyer / FAS Tools & Methods
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16. Improved mapping workflow with HM 11 Part 1: HyperMesh 11
result Difference between FS and Dyna Difference between HM and
Dyna Dthickness = Dyna FSProperty of Faurecia - Duplication
prohibited Dthickness = Dyna HM 5th European HTC Users Conference,
Bonn November 2011 M. Meyer / FAS Tools & Methods 16
17. Improved mapping workflow with HM 11 Part 1: HyperMesh 11
result Force vs. displacement Deformation base w/o LS-Dyna forming
suite HM 11 RIS mapping seat sidemeber A 100% 98,9% 91,1% 83,9%
seat sidemeber B 100% 96,0% 90,9% 91,7% backrest sidemember A 100%
97,4% 96,1% 90,8%Property of Faurecia - Duplication prohibited
backrest sidemember B 100% 98,4% 96,7% 88,5% The results with the
actual version of HM 11 doesnt reach the result of forming suite
process What is the reason for that ? 5th European HTC Users
Conference, Bonn November 2011 M. Meyer / FAS Tools & Methods
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18. Improved mapping workflow with HM 11 Part 1: Conclusion and
next steps The results are far away from the results with forming
suite one step solver. What can be the reason ? In HyperForm the
following functions are available: Local bending on / off Blank
holder forces none / low / medium / high Additional remarks from
stamping simulation: Holes are closed before forming and cut
afterwards Stamping simulation is done with finer mesh as in crash
simulationProperty of Faurecia - Duplication prohibited To get the
potential we used for the next steps for forming process HyperForm,
but we keep the same mesh size 5th European HTC Users Conference,
Bonn November 2011 M. Meyer / FAS Tools & Methods 18
19. Improved mapping workflow with HM 11 Content
Shortintroduction on Faurecia Mapping workflow Actual workflow New
approach Part1: Results with HyperMesh 11 RIS HyperForm 11 Part 2:
Parameter local bending Part 3: Parameter blank holder force Part
4: Parameter holes Part 5: variation of forming mesh sizeProperty
of Faurecia - Duplication prohibited Conclusion 5th European HTC
Users Conference, Bonn November 2011 M. Meyer / FAS Tools &
Methods 19
20. Improved mapping workflow with HM 11 Part 2: HyperForm 11
result, Parameter local bending Local bending: Comparison of local
bending on and off Explanation: Source: Stoughton, T.: Model of
Drawbead Forces in Sheet Metal Forming. Michigan: 1990 With the
local bending option the function of the draw beads is integrated
in the one step solver The function of an draw bead is to prestrain
the material. Also the flow of the material into the deep will be
reduced. HyperForm as there is no geometry of the draw bead and no
material makes an assumption of the influence. Material
flowProperty of Faurecia - Duplication prohibited 5th European HTC
Users Conference, Bonn November 2011 M. Meyer / FAS Tools &
Methods 20
21. Improved mapping workflow with HM 11 Part 2: HyperForm 11
result, Parameter local bending Difference between FS and Dyna
Difference between HF and Dyna Dplast strain = Dyna FSProperty of
Faurecia - Duplication prohibited Dplastic strain = Dyna HF lb 5th
European HTC Users Conference, Bonn November 2011 M. Meyer / FAS
Tools & Methods 21
22. Improved mapping workflow with HM 11 Part 2: HyperForm 11
result, Parameter local bending Difference between FS and Dyna
Difference between HF and Dyna Dthickness = Dyna FSProperty of
Faurecia - Duplication prohibited Dthickness = LS HF lb 5th
European HTC Users Conference, Bonn November 2011 M. Meyer / FAS
Tools & Methods 22
23. Improved mapping workflow with HM 11 Part 2: HyperForm 11
result, Parameter local bending Force vs. displacement Deformation
HF 11 with HF 11 w/o LS-Dyna forming suite local bending local
bending seat sidemeber A 100% 98,9% 91,1% 99,6% seat sidemeber B
100% 96,0% 90,9% 97,8% backrestProperty of Faurecia - Duplication
prohibited sidemember A 100% 97,4% 96,1% 96,5% backrest sidemember
B 100% 98,4% 96,7% 98,5% By deactivating local bending the results
are close to forming suite 5th European HTC Users Conference, Bonn
November 2011 M. Meyer / FAS Tools & Methods 23
24. Improved mapping workflow with HM 11 Part 3: HyperForm 11
result, Parameter blank holder die Blank holder force: blank holder
Possible choice: None, low, medium, high Comparison here: None and
low blank Explanation: In one step simulation the force will be
implemented at the edges of the shells in plane direction HyperForm
calculates the forces internally blank holder force depending on
the sheet thickness in one step solver The user can define the
force by the choice of none (0%), low (20%), medium (50%) and
highProperty of Faurecia - Duplication prohibited (80%) The blank
holder avoids the material flow into the tool. Source: Tschtsch, H.
u. Dietrich, J.: Praxis der Umformtechnik Arbeitsverfahren,
Maschinen, Werkzeuge. 9. Auflage. Wiesbaden: Vieweg Teubner, 2008
5th European HTC Users Conference, Bonn November 2011 M. Meyer /
FAS Tools & Methods 24
25. Improved mapping workflow with HM 11 Part 3: HyperForm 11
result, Parameter blank holder The plastic strain increase Increase
by 18% The thickness decrease decrease about 0,1 mmProperty of
Faurecia - Duplication prohibited 5th European HTC Users
Conference, Bonn November 2011 M. Meyer / FAS Tools & Methods
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26. Improved mapping workflow with HM 11 Part 3: HyperForm 11
result, Parameter blank holder Force vs. displacement Deformation
HF 11 HF 11 LS-Dyna forming suite blankholder blankholder none low
seat sidemeber A 100% 98,9% 99,6% 81,9% backrest 100% 97,4% 96,5%
90,3%Property of Faurecia - Duplication prohibited sidemember A The
blank holder force low has a negative influence on the result. 5th
European HTC Users Conference, Bonn November 2011 M. Meyer / FAS
Tools & Methods 26
27. Improved mapping workflow with HM 11 Part 4: HyperForm 11
result, Parameter holes Closed holes: Forming of inner contour
Trimming operation Turning down of flangeProperty of Faurecia -
Duplication prohibited 5th European HTC Users Conference, Bonn
November 2011 M. Meyer / FAS Tools & Methods 27
28. Improved mapping workflow with HM 11 Part 4: HyperForm 11
result, Parameter holes Difference between closed and opened holes
Dplastic strain = open - closedProperty of Faurecia - Duplication
prohibited 5th European HTC Users Conference, Bonn November 2011 M.
Meyer / FAS Tools & Methods 28
29. Improved mapping workflow with HM 11 Part 4: HyperForm 11
result, Parameter holes Difference between closed and opened holes
Dthickness = open - closedProperty of Faurecia - Duplication
prohibited 5th European HTC Users Conference, Bonn November 2011 M.
Meyer / FAS Tools & Methods 29
30. Improved mapping workflow with HM 11 Part 4: HyperForm 11
result, Parameter holesProperty of Faurecia - Duplication
prohibited 5th European HTC Users Conference, Bonn November 2011 M.
Meyer / FAS Tools & Methods 30
31. Improved mapping workflow with HM 11 Part 4: HyperForm 11
result, Parameter holes Force vs. displacement Deformation HF 11
closed LS-Dyna forming suite HF 11 open holes holes seat sidemeber
A 100% 98,9% 99,6% 100,1% seat sidemeber B 100% 96,0% 97,8% 97,5%
backrest 100% 97,4% 96,5% 96,6%Property of Faurecia - Duplication
prohibited sidemember A backrest sidemember B 100% 98,4% 98,5%
98,3% The effect of closed holes is visible. The influence on the
result is in these examples less 5th European HTC Users Conference,
Bonn November 2011 M. Meyer / FAS Tools & Methods 31
32. Improved mapping workflow with HM 11 Part 5: HyperForm 11
result, variation of forming mesh size Classic process Fine meshed
model for stamping Coarse meshed model for crash Mapping process:
Lose of details New process Coarse meshed model for stamping Coarse
meshed model for crashProperty of Faurecia - Duplication prohibited
Lose of geometrical details 5th European HTC Users Conference, Bonn
November 2011 M. Meyer / FAS Tools & Methods 32
33. Improved mapping workflow with HM 11 Part 5: HyperForm 11
result, variation of forming mesh size Difference between fine and
crash mesh for mapping Dplastic strain = fine - crashProperty of
Faurecia - Duplication prohibited 5th European HTC Users
Conference, Bonn November 2011 M. Meyer / FAS Tools & Methods
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34. Improved mapping workflow with HM 11 Part 5: HyperForm 11
result, variation of forming mesh size Difference between fine and
crash mesh for mapping Dthickness = open - closedProperty of
Faurecia - Duplication prohibited 5th European HTC Users
Conference, Bonn November 2011 M. Meyer / FAS Tools & Methods
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35. Improved mapping workflow with HM 11 Part 5: HyperForm V11
result, variation of forming mesh size Force vs. displacement
Deformation HF 11 HF 11 LS-Dyna forming suite crash mesh fine mesh
seat sidemeber A 100% 98,9% 99,6% 100,1% seat sidemeber B 100%
96,0% 97,8% 100,7% backrest sidemember A 100% 97,4% 96,5%
97,2%Property of Faurecia - Duplication prohibited backrest
sidemember B 100% 98,4% 98,5% 98,7% Results by using crash mesh for
forming simulation as good as using results from fine meshed parts
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FAS Tools & Methods 35
36. Improved mapping workflow with HM 11 Content
Shortintroduction on Faurecia Mapping workflow Actual workflow New
approach Part1: Results with HyperMesh 11 RIS HyperForm 11 Part 2:
Parameter local bending Part 3: Parameter blankholder Part 4:
Parameter holes Part 5: variation of forming mesh sizeProperty of
Faurecia - Duplication prohibited Conclusion 5th European HTC Users
Conference, Bonn November 2011 M. Meyer / FAS Tools & Methods
36
37. Improved mapping workflow with HM 11 Conclusion RIS tool in
HyperMesh 11: The mapping by using the RIS tool in HW 11 will be
usable if: Local bending will be deactivated Blank holder force set
to none Preference file planed to do the predefined standards In
the moment bending force are set to middle. Can be changed by the
user to none Holes are closed Tool for automatic close and reopen
will be available These options be available with the HyperWorks
V11 1.0.1 updateProperty of Faurecia - Duplication prohibited
planed for Q4 2011 5th European HTC Users Conference, Bonn November
2011 M. Meyer / FAS Tools & Methods 37
38. Improved mapping workflow with HM 11 Thank you for your
attention !Property of Faurecia - Duplication prohibited 5th
European HTC Users Conference, Bonn November 2011 M. Meyer / FAS
Tools & Methods 38