期刊
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
卷 46, 期 1, 页码 23-37出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15397734.2016.1261036
关键词
Conformal mapping; mixed penalty function method; orthotropic plates; shape optimization; stress concentration
类别
资金
- Natural Science Foundation of China [11172101, 11572126]
- Fundamental Research Funds for the Central Universities [NCEPU2016XS59]
The exploration in this work is how to minimize the stress concentration around the edge of the hole in an orthotropic plate. The study first presents the analytical solution of the stress distribution around arbitrary holes using the complex variable method and then carries out the shape optimization using the mixed penalty function method. In the optimization process, optimal holes and stress distributions under the different factors are investigated, i.e., the loading, the Young's modulus, and the fiber direction. Finally, we come to the conclusion that in the biaxial compressive load state, the shape and the stress are mainly affected by the loading, followed by the fiber direction and the Young's modulus. In the pure shear condition, all three factors determine the optimum results.
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