内压弯管在多轴循环外力下的棘轮应变数值分析

被引:1
作者
鹿晓阳
唐炳涛
王兆清
赵晓伟
陈世英
机构
[1] 山东建筑大学工程结构现代分析与设计研究所
关键词
弯管; 棘轮应变; Chaboche模型;
D O I
暂无
中图分类号
TG115 [金属的分析试验(金属材料试验)];
学科分类号
摘要
弯管在流体压力、热载荷及振动载荷作用下,处于复杂应力状态,其棘轮应变分析很难通过解析计算的方法实现。本文利用有限元法对压力弯管进行多轴棘轮应变分析,采用基于Chaboche模型基础上的非线性随动强化定律,更新弹塑性有限元计算所采用的本构关系,通过一典型的弯管实例进行了数值分析,预测其棘轮应变,考察其塑性应变行为,为结构设计提供依据。
引用
收藏
页码:95 / 98+104 +104
页数:5
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