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3D Semi-elliptical Interfacial Crack Front Stress Fields in Welded Joints  

최호승 (서강대학교 기계공학과)
이형일 (서강대학교 기계공학과)
송원근 (시설안전기술공단 기술개발지원실)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.15, no.4, 2002 , pp. 649-659 More about this Journal
Abstract
For a variety of elastic-plastic stress fields of plane strain specimens, many research works verified the validity of J-T approach. To generalize the validity of J-T method, however, further investigations are needed for more practical 3D structures than the idealized geometries as plane strain specimens. In this work, selecting two main types of structures such as plate and straight pipe, we perform 3D finite element(FE) modeling, and accompanying elastic, elastic-plastic FE analyses. We then study the validity of J-T application to 3D structures, and present some useful informations for the design or assessment of pipe welds by comparing the stress fields from the detailed 3D FE analyses to those predicted with J-T two parameters.
Keywords
semi-elliptical interfacial crack; finite element analysis; J-integral; T-stress; plate; straight pipe;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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