Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 62, Issue 15, Pages 1957-1964Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0266-3538(02)00112-4
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Using a model polypropylene-based composite, we report the observation of longitudinal damage in a transcrystalline interphase under the effect of a transverse notch, propagating in a direction perpendicular to the axis of a Kevlar fiber. We find that a Cook-Gordon-like damage mechanism is active. The damage growth rate in the transcrystalline layer, parallel to the fiber axis, is larger in thinner layers. A schematic model of the microstructural aspects of damage, which reflects the anisotropic microstructure of the transcrystalline layer, is proposed and briefly discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.
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