Numerical Simulation Analysis on Residual Stress Pipeline Girth Welding Joint Strength in Operation Conditions
After the completion of pipeline girth welding joint,the joint may be strengthened or softened and have high residual stress.Most of weld indies are acceptable,but when pipeline work under inner pressure conditions and the weld joint is high-accident risk zone.This paper establishes indirect coupling pipe 3D pipe multilayer V girth weld based on a weld temperature field and stress field of finite element analysis program,and make temperature field simulation results compare with the experimental and simulation results from some references and analy those Comparison results,Analies those results of residual stress strength joint simulation in operation conditions(0MPa,5MPa,10MPa,15MPa inner perssure) and summarizes their law of variation.
girth seam finite element residual stress strength
Peng Zhang Linpo Su Xianchun Long Yonghong Duan
School of Civil Engineering and Architecture Southwest Petroleum University Chengdu, China Nanchong Heneng Compressed Natural Gas CO. Let Petro China Company Limited Nanchong, China
国际会议
成都
英文
852-857
2012-06-15（万方平台首次上网日期，不代表论文的发表时间）