Topology optimization of multi-material structures with elastoplastic strain hardening model

Research Output

The paper presents a new multi-material topology optimization method with novel adjoint sensitivity analysis that can accommodate not only multiple plasticity but also multiple hardening models for individual materials in composite structures. Based on the proposed method, an integrated framework is developed which details the nonlinear finite element analysis, sensitivity analysis and optimization procedure. The proposed method and framework are implemented and illustrated by three numerical examples presented in this paper. In-depth analysis of the numerical results has revealed the significant impact of the selection of plasticity and hardening model on the results of topology.

Type:

Article
Date:

14 April 2021
Publication Status:

Published
DOI:

10.1007/s00158-021-02905-3
Cross Ref:

10.1007/s00158-021-02905-3
ISSN:

1615-147X
Funders:

Royal Academy of Engineering; British Council; National Natural Science Foundation of China

http://researchrepository.napier.ac.uk/output/2756251 Li, M., Deng, Y., Zhang, H., Wong, S. H. F., Mohamed, A., Zheng, Y., …Kuang, J. S. (2021). Topology optimization of multi-material structures with elastoplastic strain hardening model. Structural and Multidisciplinary Optimization, 64, 1141-1160. https://doi.org/10.1007/s00158-021-02905-3

Citation

Li, M., Deng, Y., Zhang, H., Wong, S. H. F., Mohamed, A., Zheng, Y., …Kuang, J. S. (2021). Topology optimization of multi-material structures with elastoplastic strain hardening model. Structural and Multidisciplinary Optimization, 64, 1141-1160. https://doi.org/10.1007/s00158-021-02905-3