T{sub {epsilon}}{sup *} integral under plane stress crack growth
- Univ. of Washington, Seattle, WA (United States). Dept. of Mechanical Engineering
- Georgia Inst. of Tech., Atlanta, GA (United States). Computational Modeling Center
The T{sub {epsilon}}{sup *} integral values associated with stable crack growth in A606 HSLA steel single-edge-notched (SEN) specimens were determined experimentally and numerically. The displacement fields obtained through Moire interferometry and elastic-plastic finite element analysis were used to evaluate T{sub {epsilon}}{sup *} associated with the moving crack tip. T{sub {epsilon}}{sup *} decreased with the reduction in the size of the integration contour, {Gamma}{sub {epsilon}}, 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{degree} during stable crack growth after dropping from the measured and computed initial high values of 35 and 57{degree}, respectively.
- OSTI ID:
- 544218
- Report Number(s):
- CONF-950618-; TRN: IM9749%%170
- Resource Relation:
- Conference: 27. ASTM symposium on fatigue and fracture mechanics, Williamsburg, VA (United States), 26-29 Jun 1995; Other Information: PBD: 1997; Related Information: Is Part Of Fatigue and fracture mechanics: 27. volume; Piascik, R.S.; Newman, J.C. Jr.; Dowling, N.E. [eds.]; PB: [650] p.; ASTM special technical publication 1296
- Country of Publication:
- United States
- Language:
- English
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