摘要
本文提出在(热)弹塑性增量有限元分析时,对应力及应变分量在每步增量载荷求解后依次进行迭代修正.以消除由于对本构关系的线性化处理而引起这些量的偏差值.经编程对算例考核。屈服校正效果明显。且费机时较少.与理论解或已发表的数值解比较。结果满意.
This paper presents the iterative technique in correcting the stress and strain over- shoot that is caused by linearization of the constitutive relation,during incremental Ther- mo-Elastic-Plastic FEM analysis.With making programming,several example are caculat- ed on computer with iteration method,and results obtained are compared with those by theoretical or numerical solutions.It is shown that the present method is economically fea- sible.
出处
《洛阳工学院学报》
1990年第3期31-37,共7页
Journal of Luoyang Institute of Technology
关键词
弹塑性变形
有限元法
屈服法
校正
elastic-plastic weighting factor
non-equlibrium load
stress oversshoot
corecting for the yield surface
