A multiple-quadrature eight-node hexahedral finite element for large deformation elastoplastic analysis

被引：110
|
作者：
Liu, WK [1 ]
Guo, Y [1 ]
Tang, S [1 ]
Belytschko, T [1 ]
机构：
[1] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA
来源：
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1998年 / 154卷 / 1-2期
关键词：
D O I：
10.1016/S0045-7825(97)00106-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A multiple-quadrature underintegrated hexahedral finite element, which is free of volumetric and shear locking, and has no spurious singular modes, is described and implemented for nonlinear analysis. Finite element formulations are derived in the corotational coordinate system. The use of consistent tangent operators for large deformation elastoplasticity with nonlinear isotropic/kinematic hardening rules preserves the quadratic rate of convergence of the Newton's iteration method in static analysis. Test problems studied demonstrate the efficiency and effectiveness of this element in solving a wide variety of problems, including sheet metal forming processes.
引用
收藏
页码：69 / 132
页数：64
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