TY - JOUR
T1 - T*ε integral under plane stress crack growth
AU - Omori, Yoshika
AU - Okada, Hiroshi
AU - Ma, Leong
AU - Atluri, Satya N.
AU - Kobayashi, Albert S.
PY - 1997
Y1 - 1997
N2 - The T*ε integral values associated with stable crack growth in A606 HSLA steel SEN specimens were determined experimentally and numerically. The displacement fields obtained through Moiré interferometry and elastic-plastic finite element analysis were used to evaluate T*ε associated with the moving crack tip. T*ε decreased with the reduction in the size of the integration contour, Γε, and continually increased with stable crack growth in this specimen. The measured and computed crack-tip opening angle (CTOA), on the other hand, was a constant 15° during stable crack growth after dropping from the measured and computed initial high values of 35 and 57°, respectively.
AB - The T*ε integral values associated with stable crack growth in A606 HSLA steel SEN specimens were determined experimentally and numerically. The displacement fields obtained through Moiré interferometry and elastic-plastic finite element analysis were used to evaluate T*ε associated with the moving crack tip. T*ε decreased with the reduction in the size of the integration contour, Γε, and continually increased with stable crack growth in this specimen. The measured and computed crack-tip opening angle (CTOA), on the other hand, was a constant 15° during stable crack growth after dropping from the measured and computed initial high values of 35 and 57°, respectively.
KW - CTOA
KW - Elastic-plastic fracture
KW - J integral
KW - Stable crack growth
KW - T integral
UR - http://www.scopus.com/inward/record.url?scp=0031121366&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0031121366
SN - 0066-0558
VL - 1296
SP - 61
EP - 71
JO - ASTM Special Technical Publication
JF - ASTM Special Technical Publication
ER -