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Load Carrying Capacity of Notched CFRP Laminates

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  • NETL
  • NSTL
  • Trans Tech Publications Ltd
On the basis of a micromechanical study, a method for evaluating load carrying capacity of notched CFRP laminates is developed. The damage zone at a notch tip in CFRP laminates is modeled as a fictitious crack with a cohesive stress acting on the crack surface. Then, applying the Weibull weakest link theory to the strength of surviving fiber bundles on the crack surface, we derive the relationship between the cohesive stress and the crack opening displacement, i.e., the tension-softening relation. By incorporating it in a BEM scheme, the load-displacement relationship is simulated. The simulated result for notched CPRP laminates is compared with experimental ones, and it is found that the simulated and experimental results of load carrying capacity are consistent.

notched CFRP laminateload carrying capacitytension-softening relationweibull weakest link theory

H. Suzuki、S. Kinugawa、H. Sekine

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Department of Mechanical Engineering, Hachinohe Institute of Technology, 88-1 Obiraki, Myo, Hachinohe, Aomori 031-8501, Japan

Sewage Division, Hyogo Prefectural Government, 5-10-1 Shimoyamatedori, Chuo-ku, Kobe 650-8567, Japan

Tohoku University, 6-6-01 Aoba-yama, Aoba-ku, Sendai 980-8579, Japan

2010

10.4028/www.scientific.net/KEM.430.47

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.430
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