u型缺口各向同性板的弹塑性有限元分析

N. Arslan, A. Turgut, Erol Sancaktar
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引用次数: 1

摘要

采用有限元法(FEM)对各向同性u形缺口钢板(sae1060)进行弹塑性应力分析,采用四节点等参矩形单元,以拉格朗日多项式为插值函数,在拉伸试验机上进行了u形缺口钢板的力学性能和屈服强度试验。不同情况下塑料区的扩散情况已作了说明。得到的残余应力和等效应力用图表表示,并与文献中的一些相关研究进行了比较。具有u形缺口的各向同性板的拉伸载荷由于在平面应力条件下发生的残余应力而增加。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Elasto-Plastic Finite Element Analysis of Isotropic Plates With U-Notches
Elasto-plastic stress analysis of the U-notched isotropic steel plates (SAE 1060) has been carried out using the finite element method (FEM) Isoparametric rectangular elements with four nodes have been employed and the Lagrange polynomial has been used as interpolation function Mechanical properties and yield strength of the U-notched plates have been obtained experimentally using a tensile testing machine. The spreads of the plastic zones have been illustrated for varies cases. Residual stress and equivalent stresses obtained have been presented in diagrams and compared with some of the relevant studies in the literature. The tensile loads of the isotropic plates with U-notches have been shown to increase due to residual stresses which take place under plane stress conditions.
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