压力容器2009，Vol.26Issue(7)：1-4,4.DOI:10.3969/j.issn.1001-4837.2009.07.001
相贯线处含穿透裂纹接管的补强研究
Research on Reinforcement of Nozzle with Penetrated Crack at Intersecting Line
摘要
Abstract
Safety evaluation on defective vessel with reinforcement is of great significance to serving pres-sure vessel. With ANSYS software and adopting three - dimensional finite element method (FEM), the study is performed on the maximum Mises stress of nozzle with reinforcement pad, which has penetrated cracks in its shoulder and effected by internal pressure. The research indicates the maximum Mises stress of the structure has the linear correlation with the internal pressure, and also states clearly the position of the stress is on the welded junction of vessel and reinforcement pad, which is fight under the nozzle abdo-men. With constant internal pressure, the value of maximum Mises stress of the structure is greater than that of nozzle with reinforcement pad but without defect, while it is less than that of nozzle with neither re-inforcement pad nor defect. The conclusion can be used in guiding the reinforcement and evaluation on such imperfections in engineering.关键词
补强圈/最大Mises应力/有限元分析/裂纹/接管Key words
reinforcement pad/ maximum Mises stress / finite element analysis/ crack/ nozzle分类
化学化工引用本文复制引用
董硕,喻健良..相贯线处含穿透裂纹接管的补强研究[J].压力容器,2009,26(7):1-4,4.
