TY - JOUR
T1 - Simplified J-estimations based on the Engineering Treatment Model for homogeneous and mismatched structures
AU - Kim, Yun Jae
AU - Schwalbe, K. H.
AU - Ainsworth, R. A.
N1 - Funding Information:
This work was performed as part of the EU project SINTAP (contract no. BRPRT95-0024). The authors acknowledge the financial support by the European Commission. This paper is published with permission of BEGL and GKSS.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - This paper presents simplified J-estimation equations for defective homogeneous and strength mismatched structures, based on the Engineering Treatment Model (ETM). For homogeneous structures, two modifications are made to the existing ETM J-estimation equations; firstly a modification of the contained yielding solutions, and secondly modification of J-estimation equations for materials exhibiting Lueders strain. Based on the proposed J-estimation equations for homogeneous structures, J-estimation equations for welded structures with strength mismatch are proposed. The proposed J-estimation equations for both homogeneous and mismatched structures are then compared with selected elastic-plastic finite element results. The comparisons show excellent agreement and so provide confidence in the use of the proposed J-estimation equations for defect assessment. Finally, comparison with another simplified method, the R6 method, is discussed.
AB - This paper presents simplified J-estimation equations for defective homogeneous and strength mismatched structures, based on the Engineering Treatment Model (ETM). For homogeneous structures, two modifications are made to the existing ETM J-estimation equations; firstly a modification of the contained yielding solutions, and secondly modification of J-estimation equations for materials exhibiting Lueders strain. Based on the proposed J-estimation equations for homogeneous structures, J-estimation equations for welded structures with strength mismatch are proposed. The proposed J-estimation equations for both homogeneous and mismatched structures are then compared with selected elastic-plastic finite element results. The comparisons show excellent agreement and so provide confidence in the use of the proposed J-estimation equations for defect assessment. Finally, comparison with another simplified method, the R6 method, is discussed.
UR - http://www.scopus.com/inward/record.url?scp=0035194547&partnerID=8YFLogxK
U2 - 10.1016/S0013-7944(00)00081-3
DO - 10.1016/S0013-7944(00)00081-3
M3 - Article
AN - SCOPUS:0035194547
VL - 68
SP - 9
EP - 27
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
SN - 0013-7944
IS - 1
ER -