Buckling of a thin tension-loaded composite plate with an inclined crack
- Univ. of Arizona, Tucson, AZ (United States)
- NASA Langley Research Center, Hampton, VA (United States)
This paper presents the results of a study on the response of tension-loaded composite plates with an inclined crack. The buckling and postbuckling responses of the plates with an inclined crack are determined with a geometrically nonlinear finite element analysis. The analysis is based on a corotational form of the updated Lagrangian formulation that is implemented with a triangular shell element including transverse-shear-deformation effects. The strain-energy release rates for the cracked plates are determined by the analysis in the nonlinear equilibrium state. The strain-energy release-rate results are computed for a predetermined crack propagation trajectory that coincides with the location of the minimum strain-energy density near the crack tip. The results indicate that the buckling load of the cracked plate increases as the crack orientation changes from a transverse crack to a longitudinal crack aligned with the direction of the applied tension load. The effects of crack orientation on the nonlinear response of the plates are described.
- OSTI ID:
- 175360
- Report Number(s):
- CONF-950686-; TRN: 95:006111-0325
- Resource Relation:
- Conference: Joint applied mechanics and materials summer meeting, Los Angeles, CA (United States), 28-30 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of AMD - MD `95: Summer conference; PB: 520 p.
- Country of Publication:
- United States
- Language:
- English
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