起重运输机械Issue(10)：5-8,4.
单元“生死”在模拟桁架结构失效路径中的应用
刘晓光 1陶元芳1
作者信息
- 1. 太原科技大学机械工程学院太原 030024
- 折叠
摘要
Abstract
The indeterminate truss structure is analyzed in Ansys in the paper.The maximum stress element is extrac-ted and the“birth-dead”element technology is used to kill the element.The results will be compared with the calculated re-sult from the model deleting the element.It's shown that the “birth-dead”element technology is applied to realize local in-crease and decrease of the model without changing the model grid division.Based on the characteristics of strength failure and fatigue failure of the truss structure,it's proved that the “birth-dead”element technology can be used for simulation of failure route of fatigue failure mode instead of strength failure mode,but it can be safe when it's adopted for simulation of failure route under the strength failure mode for the truss structure.关键词
单元“生死”技术/桁架结构/疲劳失效路径/强度失效路径Key words
“birth-dead”element technology/truss structure/fatigue failure route/strength failure route分类
机械制造引用本文复制引用
刘晓光,陶元芳..单元“生死”在模拟桁架结构失效路径中的应用[J].起重运输机械,2014,(10):5-8,4.
