THE RESEARCH ON THE INTERFACIAL DEBONDING OF FIBER-REINFORCED SEALING COMPOSITE SUBJECTED TO ALTERNATING LOAD

Abstract

Abstract: The interfacial debonding is the major form of interface failure of fiber-reinforced sealing composites, which can be regarded as a special crack growth of interfacial debonding. Based on the shear-lag model, the interfacial crack growth regularity of fiber-reinforced sealing composites subjected to alternating loads was investigated. In consideration of the damage of debonding interface and the inhomogeneity of the damage distribution because of fatigue load as well as Poisson’s ratio of fibers, a equivalent Paris equation was proposed, and the relationships between some fatigue variables and number of cycles were studied, including fatigue crack growth length, crack growth rate and interfacial friction coefficient.

Key words: interfacial debonding, composite, crack growth, fatigue, alternating load

CLC Number:

TB332

WU Deng-ke, GU Bo-qin. THE RESEARCH ON THE INTERFACIAL DEBONDING OF FIBER-REINFORCED SEALING COMPOSITE SUBJECTED TO ALTERNATING LOAD[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(10): 16-20.

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