Stacking sequence, number of plies, and geometry of the composite structure have significant impact on the strength and reliability of the structure. The most detrimental failure mode in composite structures is delamination. Modeling of delamination failure is, therefore, a very important technique for predicting the reliability of composite structures. A modified crack closure technique was used in determining the driving force for crack propagation and branching of laminated composites at the interfaces. Mixed mode fracture parameters, GI for the opening mode, GII for the shear mode, were calculated using the technique for two typical composite structures; namely a composite laminate subjected to tensile loading, and a curved composite laminate subjected to bending. Results of these analyses give a better understanding on the crack growth behavior of these structures, and therefore, provide insight in the composite construction for improved design of the structures.
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ASME 2005 Pressure Vessels and Piping Conference
July 17–21, 2005
Denver, Colorado, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4189-8
PROCEEDINGS PAPER
Modeling of Delamination in Composites Available to Purchase
Wing Cheng,
Wing Cheng
Raytheon Missile Systems, Tucson, AZ
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Shigeru Itoh
Shigeru Itoh
Kumamoto University, Kumamoto, Japan
Search for other works by this author on:
Wing Cheng
Raytheon Missile Systems, Tucson, AZ
Shigeru Itoh
Kumamoto University, Kumamoto, Japan
Paper No:
PVP2005-71224, pp. 97-103; 7 pages
Published Online:
July 29, 2008
Citation
Cheng, W, & Itoh, S. "Modeling of Delamination in Composites." Proceedings of the ASME 2005 Pressure Vessels and Piping Conference. Volume 4: Fluid Structure Interaction. Denver, Colorado, USA. July 17–21, 2005. pp. 97-103. ASME. https://doi.org/10.1115/PVP2005-71224
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