TY - GEN
T1 - Numerical simulation of stress corrosion cracking in a pipe using s-version FEM
AU - KikuchiFirst, Masanori
AU - Wada, Yoshitaka
AU - Shimizu, Yuto
AU - Li, Yulong
PY - 2011
Y1 - 2011
N2 - Fracture in heat affected zone (HAZ) in welding has been a serious problem for the integrity of machines. Prediction of fracture behavior due to the residual stress field in HAZ is important. In this paper, S-Version FEM(S-FEM) is applied to simulate the crack growth under thermal and residual stress fields. For evaluation of stress intensity factor, virtual crack closure integral method (VCCM) is employed. The residual stress data was provided by JAEA, Japan Atomic Energy Agency, based on their numerical simulation. SCC crack growth of a surface crack at inner suface of a pipe under thermal residual stress is simulated in three-dimensional filed. Distributions of residual stress is not axi-symmetric along pipe wall, and it affects the crack growth behavior. Ttwo cases, for axi-symmetric and non-symmetric thermal stress distributions, are assumed and crack growth behaviors are obtaiend and discussed.
AB - Fracture in heat affected zone (HAZ) in welding has been a serious problem for the integrity of machines. Prediction of fracture behavior due to the residual stress field in HAZ is important. In this paper, S-Version FEM(S-FEM) is applied to simulate the crack growth under thermal and residual stress fields. For evaluation of stress intensity factor, virtual crack closure integral method (VCCM) is employed. The residual stress data was provided by JAEA, Japan Atomic Energy Agency, based on their numerical simulation. SCC crack growth of a surface crack at inner suface of a pipe under thermal residual stress is simulated in three-dimensional filed. Distributions of residual stress is not axi-symmetric along pipe wall, and it affects the crack growth behavior. Ttwo cases, for axi-symmetric and non-symmetric thermal stress distributions, are assumed and crack growth behaviors are obtaiend and discussed.
KW - Crack growth criterion
KW - Residual stress
KW - S-version FEM
KW - Stress corrosion cracking
KW - Surface crack
KW - VCCM
KW - Welded pipe
UR - http://www.scopus.com/inward/record.url?scp=78650728505&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.452-453.577
DO - 10.4028/www.scientific.net/KEM.452-453.577
M3 - 会议稿件
AN - SCOPUS:78650728505
SN - 9780878492411
T3 - Key Engineering Materials
SP - 577
EP - 580
BT - Advances in Fracture and Damage Mechanics IX, FDM 2010
PB - Trans Tech Publications Ltd
ER -