基于有限元的腐蚀管道剩余强度评定

Based on Finite Element Analysis of Corroded Pipeline Remaining Strength Evaluation

管道大量应用于人们的生活、生产之中,随着使用年限的增长,管道势必会出现腐蚀情况,这将导致管道强度降低,本文通过运用ASME B31G-2009准则中的一级评价和三级评价——即有限元法,对某一腐蚀管道剩余强度进行分析,得出了B31G准则一级评价对腐蚀管道剩余强度的评定保守度适中,能较好的反应腐蚀管道的剩余强度。

Pipelines widely used in peoples＇ daily life and industrial production,with the use of the pipeline,the pipeline is bound to be corroded,which will lead to lower pipelines ＇ strength,the paper use ASME B31G-2009 standard Level 1Evaluation and Level 3 Evaluation- the finite element method to evaluate the corroded pipeline remaining strength. Then draw the conclusion that B31 G standard Level 1 Evaluation is moderate in corroded pipeline remaining strength,it can good to response the corroded remaining strength evaluation.