TechMA 2022
Mafalda Gonçalves, Sandrine Thuillier, António Andrade-Campos
Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Portugal
Univ. Bretagne Sud, UMR CNRS 6027, IRDL, F-56100 Lorient, France
A nonlinear topology-based optimization approach for the design of a heterogeneous mechanical test
1. SUSTAINABLE MANUFACTURING SOLUTIONS
A nonlinear topology-based optimization approach for
the design of a heterogeneous mechanical test
Mafalda Gonçalves, Sandrine Thuillier, António Andrade-Campos
Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Portugal
Univ. Bretagne Sud, UMR CNRS 6027, IRDL, F-56100 Lorient, France
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TEchMA 2022 - 5th International Conference on Technologies for the Wellbeing and Sustainable Manufacturing solutions
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5. SUSTAINABLE MANUFACTURING SOLUTIONS
Classical mechanical tests
▪ Homogeneous strain fields
▪ Limited data can be extracted
▪ Large number of tests required
Time-consuming and expensive
8. SUSTAINABLE MANUFACTURING SOLUTIONS
?
A single test rich enough to characterize accurately a complex material behavior
has not been found yet.
Classical mechanical tests
9. SUSTAINABLE MANUFACTURING SOLUTIONS
Heterogeneous stress field
Design of an innovative mechanical test
Topology-based optimization approach
Nonlinear behavior
Material nonlinearities (elastoplastic material behavior)
Geometric nonlinearities
14. SUSTAINABLE MANUFACTURING SOLUTIONS
Results
Equivalent plastic strain
▪ Large area in the plastic regime
▪ The test can stand high strains which is important for the calibration of the
elastoplastic material behavior
16. SUSTAINABLE MANUFACTURING SOLUTIONS
Conclusions
▪ Design of a mechanical test
Numerical simulations Development
processes
▪ Material and geometric nonlinearities
▪ Heterogeneous stress fields
▪ Higher quality and quantity of information about the material
behavior
▪ Topology optimization
17. SUSTAINABLE MANUFACTURING SOLUTIONS
This project has received funding from the Research Fund for Coal and Steel under grant agreement No 888153. The authors also
acknowledge the financial support of the Portuguese Foundation for Science and Technology (FCT) under the project PTDC/EME-
APL/29713/2017 by UE/FEDER through the programs CENTRO 2020 and COMPETE 2020, and UID/EMS/00481/2013-FCT under
CENTRO-01-0145-FEDER-022083. M. Gonçalves is grateful to the FCT for the Ph.D. grant Ref. UI/BD/151257/2021.
Thank you!
Any questions?
Acknowledgments
18. SUSTAINABLE MANUFACTURING SOLUTIONS
A nonlinear topology-based optimization approach for
the design of a heterogeneous mechanical test
Mafalda Gonçalves, Sandrine Thuillier and António Andrade-Campos
Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Portugal
Univ. Bretagne Sud, UMR CNRS 6027, IRDL, F-56100 Lorient, France
1
2
TEchMA 2022 - 5th International Conference on Technologies for the Wellbeing and Sustainable Manufacturing solutions
