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http://dx.doi.org/10.3795/KSME-A.2008.32.5.411

Mis-Match Limit Load Analyses and Approximate J-Integral Estimates for Similar Metal Weld with Weld-Center Crack Under Tension Load  

Song, Tae-Kwang (고려대학교 대학원 기계공학과)
Kim, Yun-Jae (고려대학교 기계공학과)
Kim, Jong-Sung (한국전력기술(주))
Jin, Tae-Eun (한국전력기술(주))
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.32, no.5, 2008 , pp. 411-418 More about this Journal
Abstract
In this work, the effect of strength mismatch on plastic limit loads is quantified for similar metal weld plates with cracks under tension load, via three-dimensional, small strain elastic-perfectly plastic finite element analyses. Relevant variables related to plate geometry and crack length are systematically varied, in addition to the weld width. An important finding is that mis-match limit loads can be uniquely quantified through strength mis-match ratio and one geometry-related parameter. Based on the proposed limit load solutions, reference stress based J-integral estimates is also investigated. When the reference stress is defined by the mis-match limit load, predicted J-integral values agree overall well with FE results.
Keywords
Finite Element Analysis; Strength-Mismatch; Limit Load Analysis; J-Integral;
Citations & Related Records

Times Cited By SCOPUS : 1
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1 Miller, A.G., 1988, “Review of Limit Loads of Structures Containing Defects,” International Journal of Pressure Vessels and Piping, Vol. 32, pp. 191-327   DOI   ScienceOn
2 British Energy Generation Ltd., 2007, “R6:Assessment of the Integrity of Structures Containing Defects,” Rivision 4
3 Tada, H., Paris, PC. and Irwin, GR., 1985, “The stress Analysis of Cracks Handbook,” Paris production Incoporated
4 Schwalbe, K-H, Ainsworth, RA, Eripret ,C, Gilles, P, Kocak M, Pisarski H, Wang Y-Y, 1997, “Common Views on the Effects of Yield Strength Mis-Match on Testing and Structural Assessment,” GKSS Research Centre Publications, pp. 99-134
5 Kim, Y-J, Schwalbe, 2001, “Mismatch Effect on Plastic Yield Loads in Idealized Weldments : I.Weld Centre Cracks,” Engineering Fracture Mechanics, Vol.68, pp. 163-182   DOI   ScienceOn
6 Kim, Y-J, Schwalbe, 2001, “Mismatch Effect on Plastic Yield Loads in Idealized Weldments : II.Heat Affected Zone Cracks,” Engineering Fracture Mechanics, Vol.68, pp. 183-199   DOI   ScienceOn
7 Kim, Y-J., Schwalbe, K-H., “Conpendium of Yield Load Solutions for Strength Mis-Matched SE(T), SE(B) and C(T) Specimens,” Engineering Fracture Mechanics, Vol. 68, pp. 1137-1151   DOI   ScienceOn
8 Hao, S., Cornec, A., and Schwalbe, K-K., “Plastic Stress and Strain Fields and Limit Loads of a Plane Strain Cracked Tensile Panel with a Mis-Matched Welded Joint,” International Journal of Solids and Structure, 34, pp. 297-326
9 ABAQUS, 2003, “ABAQUS Standard/User’s Manual, Version 6.4,” Hibbit Karlsson & Sorensen, Inc., Pawtucket, RI, USA