Evaluation of Fracture Toughness by Energy Release Rate for Interface Crack in Adhesively Bonded Joints

에너지 방출률에 의한 접착이음의 계면균열에 대한 파괴인성의 평가

  • Published : 2000.09.01


In this paper, the evaluation method of interfacial fracture toughness to apply the fracture toughness was investigated in adhesively bonded joints of AI/Ced./A1. Four types of adhesively bonded double-cantilever beam(DCB) joints with the interface crack were prepared for the test of interfacial fracture toughness. The experiments to measure the interfacial fracture toughness were performed under the various mixed-mode conditions. The critical energy release rate, Gc, was obtained by the experimental measurement of compliances. From the experimental results, the interfacial fracture toughness for the mixed-mode specimens is well characterized by the energy release rate, and the method of strength evaluation by the interfacial fracture toughness was discussed in adhesively bonded joints.


Adhesively Bonded Joint;Interface Crack;Mixed Mode;Double-Cantilever Beam;Compliance;Fracture Toughness;Energy Release Rate


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