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Interlaminar fracture toughness of graphite/epoxy composite under mixed-mode deformations

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Abstract

An antisymmetric test fixture is employed to investigate interlaminar fracture behavior in graphite/epoxy composite material under mixed-mode deformations. Finite correction factors for the graphite/epoxy fracture specimen with various crack lengths are used to determine the interlaminar fracture toughness by finite-element stress analysis. Interlaminar fracture characteristics of graphite/epoxy composite material under mode-I, mode-II and mixed-mode deformations are evaluated experimentally. A mixed-mode fracture criterion is also investigated to obtain information on mixedmode interlaminar fracture behavior of graphite/epoxy composite material.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, P.O. Box 150, Seoul, Korea

    S. H. Yoon (Graduate Student) & C. S. Hong (Professor)

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  1. S. H. Yoon
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  2. C. S. Hong
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Yoon, S.H., Hong, C.S. Interlaminar fracture toughness of graphite/epoxy composite under mixed-mode deformations. Experimental Mechanics 30, 234–239 (1990). https://doi.org/10.1007/BF02322816

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  • DOI: https://doi.org/10.1007/BF02322816

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