A maximum-rectifier-function approach to stress-constrained topology optimization
A maximum-rectifier-function approach to stress-constrained topology optimization
复制标题
应力约束拓扑优化的最大整流函数方法
DOI:
10.1007/s00158-022-03357-z
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发表时间:
2022
影响因子:
3.9
通讯作者:
Kolonay, Raymond M.
中科院分区:
文献类型:
--
作者:
Norato, Julián A.;Smith, Hollis A.;Deaton, Joshua D.;Kolonay, Raymond M.
This paper introduces a novel method for stress-constrained topology optimization in which the stress constraint is a differentiable approximation of the maximum element stress violation in the structure. The element stress violation is given by a differentiable rectifier function. A key feature of the proposed method is its ability to render designs that satisfy the stress limit without renormalization of the constraint, as in some existing aggregation approaches. Numerical experiments demonstrate that the proposed technique exhibits better convergence and is less sensitive to the aggregation parameter than aggregation methods that employ renormalization. The effectiveness of the proposed method is demonstrated by several examples.
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影响因子:
3.9
作者:
Julián A. Norato
通讯作者:
Julián A. Norato
影响因子:
3.9
作者:
Giraldo-Londono, Oliver;Paulino, Glaucio H.
通讯作者:
Paulino, Glaucio H.
影响因子:
3.9
作者:
Fernando V. Senhora;O. Giraldo-Londoño;I. Menezes;G. Paulino
通讯作者:
Fernando V. Senhora;O. Giraldo-Londoño;I. Menezes;G. Paulino
影响因子:
3.3
作者:
Jenmy Zimi Zhang;Conner Sharpe;C. Seepersad
通讯作者:
C. Seepersad