焊管2011，Vol.34Issue(1)：9-12,24,5.
屈服强度对膨胀管残余应力分布的影响
The Effect of Yield Strength on Distribution of Residual Stress in Expandable Tube
摘要
Abstract
In order to obtain the distribution of residual stress generated by the expansion process of expandable tube,the finite element analysis software ANSYS/LS - DYNA was used for simulating this process. Bilinear kinematic hardening model was selected for expandable tube's material and yield strength of the material was changed, so the various trend of residual stress accompanied by yield strength was achieved. This will provide proof for selecting expandable tube's material, preventing and eliminating excessive residual stress and so on;changed the related material model strain rate, validated the effect of strain rate on residual stress, and new mechanical properties requirements to expandable tube's material were proposed.关键词
膨胀管/有限元/屈服强度/残余应力/应变率Key words
expandable tube/ finite element analysis/ yield strength/ residual stress/ strain rate分类
矿业与冶金引用本文复制引用
唐海亮,李泉,郑茂盛..屈服强度对膨胀管残余应力分布的影响[J].焊管,2011,34(1):9-12,24,5.基金项目
陕西省"13115"科技创新工程重大科技专项项目(2007ZDKG-36) （2007ZDKG-36）
中石油横向课题"可膨胀管材料的研究与开发" （）
