The role of crack morphology on the failure behavior of laminated composites
Conference
·
OSTI ID:505286
In this study, the failure of the ductile layers from collinear and delaminating cracks that occur in laminated composite systems was studied using a constitutive relationship that accounts for strength degradation resulting from the nucleation and growth of voids. The results indicate that in laminated composites, void nucleation and growth ahead of the cracks occur at a much faster rate due to evolution of much higher stress values at the interface region. For delaminating crack cases, the fracture behavior is strongly influenced by the delamination length. The resistance of the ductile layers to crack extension can be significantly reduced by short delamination lengths.
- Research Organization:
- Ames Lab., Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 505286
- Report Number(s):
- IS-M-866; CONF-970111-13; ON: DE97006806; TRN: AHC29716%%38
- Resource Relation:
- Conference: 21. annual conference and expo on composites, advanced cermics, materials and structures, Cocoa Beach, FL (United States), 12-16 Jan 1997; Other Information: PBD: [1997]
- Country of Publication:
- United States
- Language:
- English
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