TY - JOUR
T1 - Fatigue growth of internal flaw
T2 - Simulation of subsurface crack penetration to the surface of the structure
AU - Wada, Yoshitaka
AU - Kikuchi, Masanori
AU - Yamada, Shinji
AU - Serizawa, Ryosuke
AU - Li, Yulong
PY - 2014/6
Y1 - 2014/6
N2 - In the maintenance code for nuclear power plants, initial defects are modeled as elliptical cracks in a plane normal to the tension loading direction. However, in the S-FEM simulation the defect shape, which is subjected to multi-axial loading, is realistically modeled, and the crack growth due to fatigue can be simulated. The conservativeness of the maintenance code is discussed. Parametric studies are conducted by S-FEM for examination of this problem. A simple new proximity rule was proposed, and the results of this new rule are found to be reasonable and conservative.
AB - In the maintenance code for nuclear power plants, initial defects are modeled as elliptical cracks in a plane normal to the tension loading direction. However, in the S-FEM simulation the defect shape, which is subjected to multi-axial loading, is realistically modeled, and the crack growth due to fatigue can be simulated. The conservativeness of the maintenance code is discussed. Parametric studies are conducted by S-FEM for examination of this problem. A simple new proximity rule was proposed, and the results of this new rule are found to be reasonable and conservative.
KW - Fatigue crack propagation
KW - Fracture mechanics
KW - S-FEM
KW - Subsurface crack
UR - https://www.scopus.com/pages/publications/84901929299
U2 - 10.1016/j.engfracmech.2014.03.016
DO - 10.1016/j.engfracmech.2014.03.016
M3 - 文章
AN - SCOPUS:84901929299
SN - 0013-7944
VL - 123
SP - 100
EP - 115
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
ER -