期刊论文

Rong, JH

英文

Advances in Engineering Software

0965-9978

2025

199

103805

10.1016/j.advengsoft.2024.103805

Ministry of Education of the People's Republic of China, MOE National Natural Science Foundation of China, NSFC, (12102066, 12172065) National Natural Science Foundation of China, NSFC Cooperation Research Project of China Construction Fifth Engineering Division Corp, (2019RG088) Changsha University of ScienceandTechnology, CSUST, (21KB08) Changsha University of ScienceandTechnology, CSUST Natural Science Foundation of Hunan Province, (2022JJ40465, 2023JJ70028) Natural Science Foundation of Hunan Province Education Department of Jiangxi Province, (GJJ2201720) Education Department of Jiangxi Province

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Stress-constrained topology optimization under geometrical nonlinear conditions is still an open topic as it often encounter difficulties such as mesh distortion, inaccurate stress evaluation and low computational efficiency. For this purpose, this paper develops a novel parallel-computing based topology optimization methodology for geometrically nonlinear continuum structures with stress constraints. To alleviate the mesh distortions in the low-density regions, a smooth material interpolation scheme from with different penalization for the elastic and nonlinear stiffness is proposed. Moreover...