平面应变Mindlin曲线单元有限元方程及其在截面分析中的应用

吉林大学学报(工学版) ›› 2000, Vol. 30 ›› Issue (01): 26-30.

平面应变Mindlin曲线单元有限元方程及其在截面分析中的应用

李大永, 那景新, 曹颖, 胡平

吉林工业大学汽车覆盖件成形技术研究所, 吉林长春 130025

收稿日期:1999-06-15 出版日期:2000-01-25 发布日期:2000-01-25
作者简介:李大永(1973- ),男,河北唐山人,吉林工业大学博士研究生.
基金资助:
国家自然科学基金资助项目(19472031);国家“九五”重点科技攻关资助项目(96-120-13);国家汽车动态模拟重点实

A Finite Element Equation with Plane Strain Mindlin Curved Line Element and Its Application in Section Analysis

LI Da-yong, NA Jing-xin, CAO Ying, HU Ping

Institute of Automobile Panel Forming Technology, Jilin University of Technology, Changchun 130025, China

Received:1999-06-15 Online:2000-01-25 Published:2000-01-25

摘要/Abstract

摘要：

采用具有弯曲效应的Mindlin曲线单元,推导了平面应变条件下的弹塑性U.L.有限元列式,应用此式进行了板料冲压成形过程中的截面分析,对两种标准测试考题进行了计算,并与有关实验进行了对比,取得了满意的结果。

关键词: Mindlin曲线单元, 平面应变, 弹塑性, U.L.有限元列式, 截面分析

Abstract:

Mindlin curved line element with bending effect is employed and elasto-plastic U.L.finite element formulation under plane strain condition is developed.The theory is applied to section analysis in sheet metal forming.Two benchmark test problems are calculated and the results are compared with experimental ones.Fine agreement is obtained.

Key words: Mindlin curved line element, plane strain, elasto-plastic, U.L.finite element formulation, section analysis

中图分类号:

TG375.41

李大永, 那景新, 曹颖, 胡平. 平面应变Mindlin曲线单元有限元方程及其在截面分析中的应用[J]. 吉林大学学报(工学版), 2000, 30(01): 26-30.

LI Da-yong, NA Jing-xin, CAO Ying, HU Ping . A Finite Element Equation with Plane Strain Mindlin Curved Line Element and Its Application in Section Analysis[J]. 吉林大学学报(工学版), 2000, 30(01): 26-30.

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