T*{sub {epsilon}} integral analysis of fracture specimens
- Univ. of Washington, Seattle, WA (United States); and others
T*{sub {epsilon}} integral values associated with stable crack growth in thin 2024-T3 aluminum compact (CT) specimens and A606 HSLA steel single edge notched (SEN) specimens were determined directly from the crack tip displacement field obtained by moire interferometry. Stable crack growth in the SEN specimen was also simulated by an elastic-plastic finite element (FE) model which was driven by the experimentally determined boundary conditions. T*{sub {epsilon}} obtained experimentally and by FE were in reasonable agreements with each other. Unlike the vanishing J integrals with crack extension, T*{sub {epsilon}} reached steady state values with stable crack growth. Thus, for a given integration contour, {Gamma}{sub {epsilon}}, near the crack tip, T*{sub {epsilon}} can be used as a stable crack growth as well as a ductile fracture criteria.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- DOE Contract Number:
- FG06-94ER14490
- OSTI ID:
- 415834
- Report Number(s):
- CONF-9605186-; ON: DE96015339; TRN: 96:005794-0007
- Resource Relation:
- Conference: 14. symposium on energy engineering sciences: mechanical sciences, Argonne, IL (United States), 15-17 May 1996; Other Information: PBD: [1996]; Related Information: Is Part Of Proceedings of the fourteenth symposium on energy engineering sciences: Mechanical sciences: Solids and fluids; PB: 226 p.
- Country of Publication:
- United States
- Language:
- English
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