Interlaminar Fracture Toughness Test: Traditional and Modified

by William E. Bachrach, Columbia Univ, New York, United States,
Daniel N. Beshers, Columbia Univ, New York, United States,

Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond


For brittle, transversely isotropic, composite materials we have developed an alternative Mode II interlaminar fracture toughness test (GIIc) that is encompassed within the Mode I experimental interlaminar fracture toughness fixture. For a 32-ply, unidirectional, graphite-epoxy laminate preliminary GIIc values determined from this modified End Notched Flexure Test (MENF) agree well with the traditional ENF test.

Subject Headings: Material tests | Composite materials | Laminated materials | Cracking | Toughness | Flexural strength | Synthetic materials

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