Springback simulation and analysis of strong anisotropic sheet metals in U-channel bending process

被引：4
作者：
Liu Yuqi
Hu Ping
Wang Jinchen
机构：
[1] Jilin University,Department of Applied Mechanics
来源：
Acta Mechanica Sinica | 2002年 / 18卷 / 3期
关键词：
springback; planar anisotropy; Updating Lagrange FEM; Kirchhoff shell element;
D O I：
10.1007/BF02487954
中图分类号：
学科分类号：
摘要：
The springback phenomenon of strong anisotropic sheet metals with U-channel bending as well as deep-drawing is numerically studied in detail by using Updating Lagrange FEM based on virtual work-rate principle, Kirchhoff shell element models and the Barlat-Lian planar anisotropic yield function. Simulation results are compared with a benchamark test. Very good agreement is obtained between numerical and test results. The focus of the present study is on the numerical simulation of the springback characteristics of the strong anisotropic sheet metals after unloading. The effects of the planar anisotropy coefficients and yield function exponent in the B-L yield function on the springback characteristics are discussed in detail. Some conclusions are given.
引用
收藏
页码：264 / 273
页数：9
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