Strain energy release rates for skin-stiffener debonding
Conference
·
OSTI ID:55411
- Analytical Services and Materials, Inc., Hampton, VA (United States)
Fracture mechanics analyses of a debonded skin-stiffener configuration using three-dimensional (3D) finite element method are presented. Twenty noded isoparametric elements were used to model the debond configurations. The virtual crack closure technique (VCCT) was used to evaluate the strain energy release rate distributions across the debond front. The strain energy release rate (G-value) distributions showed that there is a boundary layer effect near the ends of the debond and there is an elevation in the G-values in the region of the blade of the stiffener. The analyses also showed that the mode-II is the dominant mode for this debond configuration.
- OSTI ID:
- 55411
- Report Number(s):
- CONF-9310328-; ISBN 1-56676-232-4; TRN: IM9525%%84
- Resource Relation:
- Conference: 1993 science and technology alliance materials conference, Greensboro, NC (United States), 27-29 Oct 1993; Other Information: PBD: 1995; Related Information: Is Part Of Science and technology alliance -- Materials conference `93; PB: 459 p.
- Country of Publication:
- United States
- Language:
- English
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