Dev C, Stankiewicz G, Steinmann P (2022)
Publication Type: Journal article
Publication year: 2022
Book Volume: 65
Journal Issue: 6
DOI: 10.1007/s00158-022-03271-4
We present a sequential topology and shape optimization framework to design compliant mechanisms with boundary stress constraints. In our approach, a density-based topology optimization method is used to generate the configuration of the mechanisms. Afterwards, a node-based shape optimization is invoked to obtain an exact boundary representation. A specialized, optimality criteria-based design update is formulated for the shape optimization. To avoid impractical hinges with point connections, stress constraints are imposed. The stress constraints are imposed using two strategies: Local stress constraints on the nodes of the boundary or global P-norm stress constraints in the domain. Further, an adaptive shape refinement strategy is adopted to increase the design space of shape optimization and to capture the fine-scale details of the geometry. Finally, numerical experiments are presented, showing that the proposed approach can be effectively applied to the design of compliant mechanisms with stress constraints.
APA:
Dev, C., Stankiewicz, G., & Steinmann, P. (2022). Sequential topology and shape optimization framework to design compliant mechanisms with boundary stress constraints. Structural and Multidisciplinary Optimization, 65(6). https://dx.doi.org/10.1007/s00158-022-03271-4
MLA:
Dev, Chaitanya, Gabriel Stankiewicz, and Paul Steinmann. "Sequential topology and shape optimization framework to design compliant mechanisms with boundary stress constraints." Structural and Multidisciplinary Optimization 65.6 (2022).
BibTeX: Download