OPTIMAL PLASTIC SHAPE DESIGN VIA THE BOUNDARY PERTURBATION METHOD

被引：9
|
作者：
EGNER, W
KORDAS, Z
ZYCZKOWSKI, M
机构：
[1] Institute of Mechanics and Machine Design, Cracow University of Technology (Politechnika Krakowska), Kraków, PL-31-155
来源：
STRUCTURAL OPTIMIZATION | 1994年 / 8卷 / 2-3期
关键词：
Structural design;
D O I：
10.1007/BF01743312
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The paper presents the boundary perturbation method as applied to optimal plastic shape design. Perfect plasticity is assumed. The procedure consists of two steps: determination of a class of fully plastic solutions in the limit state (if possible), and then the choice of the optimal shape from among those solutions. Governing equations and boundary conditions for general perturbations of a circular cylinder under internal pressure are derived. Two examples of optimization concern non-circular shapes under plane strain conditions (heads of tension members) and pipes of variable diameter (transition zones). In both cases the minimal volume is the design objective under the constraint of given limit load-carrying capacity.
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页码：145 / 155
页数：11
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