TY - JOUR
T1 - Effect of plate width-thickness ratio on elastic-plastic J-integral of semi-elliptical surface cracked plate under tension
T2 - 1. Limitation of existing J-integral estimation equation
AU - Shin, Ji Su
AU - Gim, Jae Min
AU - Kim, Yun Jae
N1 - Publisher Copyright:
© 2020 The Korean Society of Mechanical Engineers.
PY - 2020
Y1 - 2020
N2 - In this study, the elastic-plastic J of a tension-loaded plate with a semi-elliptical surface crack was calculated using finite element (FE) analysis. The results were then compared with those obtained using the existing J-integral estimation equation. To analyze the effect of the plate width-to-thickness ratio on J, a wide range of plate width-to-thickness ratio were considered. It was found that the existing estimation equation can predict J-integral within a small margin of error when the plate width-to-thickness is small. However, as the plate width-to-thickness ratio increases, the margin of error increases up to 3.5 times the estimated J.
AB - In this study, the elastic-plastic J of a tension-loaded plate with a semi-elliptical surface crack was calculated using finite element (FE) analysis. The results were then compared with those obtained using the existing J-integral estimation equation. To analyze the effect of the plate width-to-thickness ratio on J, a wide range of plate width-to-thickness ratio were considered. It was found that the existing estimation equation can predict J-integral within a small margin of error when the plate width-to-thickness is small. However, as the plate width-to-thickness ratio increases, the margin of error increases up to 3.5 times the estimated J.
KW - Finite element analysis
KW - J-estimation equation
KW - J-integral
KW - Reference stress method
KW - Semi-elliptical surface crack
UR - http://www.scopus.com/inward/record.url?scp=85102401222&partnerID=8YFLogxK
U2 - 10.3795/KSME-A.2020.44.10.717
DO - 10.3795/KSME-A.2020.44.10.717
M3 - Article
AN - SCOPUS:85102401222
SN - 1226-4873
VL - 44
SP - 717
EP - 723
JO - Transactions of the Korean Society of Mechanical Engineers, A
JF - Transactions of the Korean Society of Mechanical Engineers, A
IS - 10
ER -