COUPLED THERMO-MECHANICAL FEM ANALYSIS OF TWIST COMPRESSION DEFORMATION PROCESS

来源期刊：中国有色金属学报(英文版)1997年第4期

论文作者：Xue Kemin Zhang Zhengrong Xia Yongjiang Lu Yan

文章页码：103 - 107

Key words：twist-compression; rigid-viscoplastic FEM; thermo-mechanical coupling

Abstract: D rigid viscoplastic FEM of compressible materials was applied to analyze the deformation behavior during twist compression forming of axisymmetrical body at high temperatures. When calculating the temperature fields, considering the thermo mechanical coupling effect between temperature and deformation, 2 D FEM and CNG methods were adopted, and the up winding technique was used to avoid the influences of numerical instability on calculated results.