Initial imperfections and the initiation of wrinkling in finite element modelling of deep drawing

被引：4

作者：

Hematian, J ^{[1
]}

Wild, PM ^{[1
]}

机构：

[1] Queens Univ, Dept Mech Engn, Kingston, ON K7L 3N6, Canada

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING | 2000年 / 214卷 / E1期

关键词：

wrinkle; finite element; buckling; plate; imperfection;

D O I：

10.1243/0954408001530227

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The effect of initial imperfections on the initiation of wrinkling in finite element models of deep drawing operations is assessed. Models of an annular plate are subjected to radial in-plane loading and the effects of different types, magnitudes and distributions of imperfections are investigated. A model of a circular plate subjected to out-of-plane loading from a punch and die is similarly investigated and the results are compared with experimental data. It is confirmed that initial imperfections are an essential requirement for the initiation of wrinkling for the case of in-plane loading. Initial imperfections are shown to be unimportant in the initiation of wrinkling for the case of out-of-plane loading.

引用

页码：63 / 73

页数：11

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