摘要
以受弯构件和三杆结构为例,推导了塑性阶段卸载后残余应力的理论计算公式,接着通过利用现有的一些大型通用有限元软件的弹塑性分析,比较精确地模拟获得残余应力和残余变形的值,为结构或者构件在反复荷载作用(如地震作用或者疲劳循环作用)下的残余应力分析指出了一条有用的途径。
Theoretical formulas of residual stress were derived in bending members and the structures of three members.Using the existing large elastic-plastic finite element analysis software,the precise simulation of residual stress and residual deformation were carried out.A useful way about the residual stress analysis on the structure or component in the repeated loads was pointed out.
出处
《建筑结构》
CSCD
北大核心
2013年第S2期441-444,共4页
Building Structure
基金
国家自然科学基金项目(51278428)
关键词
塑性
残余应力
计算公式
数值模拟
plastic
residual stress
formula
numerical simulation
