Is there a ply thickness effect on the mode I intralaminar fracture toughness of composite laminates?

C. Furtado; A. Arteiro; Peter Linde; Brian L. Wardle; Pedro P. Camanho

doi:https://doi.org/10.1016/j.tafmec.2020.102473

doi.org/10.1016/j.tafmec.2020.102473

Is there a ply thickness effect on the mode I intralaminar fracture toughness of composite laminates?

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..., Pedro P. Camanho

60

Theoretical and Applied Fracture Mechanics5.30

Volume: 107, Pages: 102473 - 102473

Published: Jun 1, 2020

Abstract

The apparent crack resistance curves associated with longitudinal tensile failure of carbon fibre reinforced epoxy composite systems with ply thicknesses of 0.075 mm, 0.134 mm and 0.268 mm are determined experimentally from the size effect law of geometrically similar double edge notch tension cross-ply specimens. An increase in notched strength as a function of the ply thickness and a corresponding increase of the measured intralaminar fracture...