The Stress Intensity Factor of Six Prismatic Cracked Shell Based on J2-Integral

doi:10.3969/j.issn.1006-396X.2017.02.016

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The Stress Intensity Factor of Six Prismatic Cracked Shell Based on J₂-Integral

Liu Mingyue¹,Xie Yujun¹,Li Yan¹,Li Shijie²,Wei Wei³

1.Schoolof MechanicalEngineering,LiaoningShihuaUniversity,FushunLiaoning 113001,China;
2.PetroChinaFushunPetrochemicalCompany,FushunLiaoning 113001,China;
3.SINOPECFifthConstructionCompanyLimited,MaomingGuangdong 525000,China

Received:2016-09-06 Revised:2016-11-12 Online:2017-04-20 Published:2017-05-05

基于J₂-积分与六棱柱壳裂纹应力强度因子

刘明岳¹,谢禹钧¹,李岩¹,李世杰²,魏巍³

1.辽宁石油化工大学机械工程学院,辽宁抚顺113001;2.中国石油天然气股份有限公司抚顺石化分公司,辽宁抚顺113001;
3.中石化第五建设有限公司,广东茂名525000

通讯作者: 谢禹钧(1960-),男,博士,教授,从事断裂力学、结构完整性及失效风险等研究;E-mail:yjxie@lnpu.edu.cn。
作者简介:刘明岳(1989-),女,硕士研究生,从事断裂力学和结构安全研究;E-mail:972464321@qq.com。
基金资助:
国家自然科学基金项目(50771052,50971068,11272141)。

Abstract

Abstract: As one of the important fracture parameters, stress intensity factor plays an important role in the fracture analysis of engineering structures.Based on the concept of J₂-Integralintegral and the elementary theory of strength of materials,the stress intensity factors of the transverse crack of the six prismatic shell and the six prismatic shell with reinforcing rib are analyzed and solved. A method for solving the stress intensity factor of complex structure by using J₂-Integral method is presented.

Key words: Swessintensityfacter, J₂-integral, Sixprismaticshel, Crack

摘要： 应力强度因子作为一个重要的断裂参量,在工程结构件断裂分析过程中起到至关重要的作用。本文基于J₂-积分和材料力学中的弯曲理论,对六棱柱壳横向裂纹和加强筋六棱柱壳横向裂纹的应力强度因子进行了分析求解。给出了利用J₂-积分求解复杂结构应力强度因子的一个方法。

关键词: 应力强度因子, J₂-积分, 六棱柱壳, 裂纹

Liu Mingyue,Xie Yujun,Li Yan,Li Shijie,Wei Wei.

The Stress Intensity Factor of Six Prismatic Cracked Shell Based on J₂-Integral[J]. , DOI: 10.3969/j.issn.1006-396X.2017.02.016.

刘明岳,谢禹钧,李岩,李世杰,魏巍. 基于J₂-积分与六棱柱壳裂纹应力强度因子[J]. 石油化工高等学校学报, DOI: 10.3969/j.issn.1006-396X.2017.02.016.

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The Stress Intensity Factor of Six Prismatic Cracked Shell Based on J₂-Integral

基于J₂-积分与六棱柱壳裂纹应力强度因子

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