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Fracture Behaviour Analysis of the Crack at the Specimen with the Type of Mode I Composed of the Bonded Carbon Fiber Reinforced Plastic

접합된 CFRP로 구성된 Mode I형 시험편 크랙의 파괴 거동 해석

  • Received : 2015.09.07
  • Accepted : 2015.12.18
  • Published : 2015.12.31

Abstract

In this paper, the carbon fiber reinforced plastic is processed as the double cantilever beam in order to estimate the fracture behavior of composite and is carried out with the static analysis as the mode I. The specimen sizes are 25 mm, 30 mm, 35 mm and 40 mm. And the material property is used with carbon. As the analysis result of mode I, the adhesive part is detached latest by the small force at the specimen thickness of 25 mm. The largest force is happened at the specimen thickness of 40 mm. The defection of the adhesive interface is shown slowest at the displacement of 9.75 mm at the specimen thickness of 25 mm. And the defection is shown quickest at the displacement of 7.82 mm at the specimen thickness of 40 mm. This defection is due to the fracture of specimen. The result of this study on the defection of the adhesive interface and the reaction force due to this defection is thought to be contributed to the safe structural design of the carbon fiber reinforced plastic.

Keywords

Carbon fiber reinforced plastic;Double cantilever beam;Fracture behaviour;Adhesive interface;Defection

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Acknowledgement

Supported by : 한국연구재단