TY - GEN
T1 - Effect of weld geometry on mis-match limit load analyses for circumferential surface cracked pipes in the centre of welds
AU - Kim, Sang Hyun
AU - Han, Jae Jun
AU - Lee, Han Sang
AU - Kim, Yun Jae
N1 - Publisher Copyright:
Copyright © 2014 by ASME.
PY - 2014
Y1 - 2014
N2 - The weld metal compared to the base metal, is known to be more vulnerable to cracking. Thus, the strength mismatch limit load analysis is necessary for defect assessment. In our previous paper, closed-form solutions of mis-match limit loads were proposed for idealized butt weld configuration as a function of the strength mis-match ratio with geometry-related slenderness parameter. The actual weld geometry is not idealized band configuration but shape of V-grooved welds. The surface crack is more common and significant than through wall crack. The present work provides mis-match limit loads for circumferential surface cracked pipes in the centre of V-groove welds using finite element (FE) analysis. Various crack depth (a/t=0.35∼0.8) and groove angles (20o∼90o) are considered for systematic investigation. With regards to loading conditions, axial tension is applied for all cases.
AB - The weld metal compared to the base metal, is known to be more vulnerable to cracking. Thus, the strength mismatch limit load analysis is necessary for defect assessment. In our previous paper, closed-form solutions of mis-match limit loads were proposed for idealized butt weld configuration as a function of the strength mis-match ratio with geometry-related slenderness parameter. The actual weld geometry is not idealized band configuration but shape of V-grooved welds. The surface crack is more common and significant than through wall crack. The present work provides mis-match limit loads for circumferential surface cracked pipes in the centre of V-groove welds using finite element (FE) analysis. Various crack depth (a/t=0.35∼0.8) and groove angles (20o∼90o) are considered for systematic investigation. With regards to loading conditions, axial tension is applied for all cases.
UR - http://www.scopus.com/inward/record.url?scp=84911963101&partnerID=8YFLogxK
U2 - 10.1115/PVP2014-28865
DO - 10.1115/PVP2014-28865
M3 - Conference contribution
AN - SCOPUS:84911963101
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
BT - Materials and Fabrication
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2014 Pressure Vessels and Piping Conference, PVP 2014
Y2 - 20 July 2014 through 24 July 2014
ER -