Optimization with non-homogeneous failure criteria like Tsai-Wu for composite laminates

被引：89

作者：

Groenwold, Albert A.

Haftka, Raphael T.

机构：

[1] Univ Stellenbosch, Dept Mech Engn, ZA-7602 Matieland, South Africa

[2] Univ Florida, Dept Mech & Aerosp Engn, Gainesville, FL 32611 USA

来源：

STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION | 2006年 / 32卷 / 03期

关键词：

composite laminate; strength; failure criterion; optimization;

D O I：

10.1007/s00158-006-0020-3

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 [计算机应用技术]; 0835 [软件工程];

摘要：

In designing composite laminates, minimization of a suitable failure criterion is sometimes selected as the objective function. However, for non-homogeneous criteria, e. g., the Tsai-Wu criterion, this objective function will not maximize the failure load, when it is carried at a load which is different from the failure load. We suggest that the use of a safety factor for the objective function is more appropriate for maximizing for the faiure load. In fact we show losses of more than 40% in the load carrying capacity even when the load carrying capacity of the optimal laminate is 75% of the applied load.

引用

页码：183 / 190

页数：8