Abstract
Failure in a fiber-reinforced polymer composite is a complex event, with the possibility of intra-laminar and inter-laminar modes interacting. These modes may initiate, propagate and accumulate for prescribed loading conditions, stacking sequences and geometries of the structure. In this paper, the failure progression in a cross-ply tensile specimen with a single-edge notch was examined through experiments that provided detailed observations using digital image correlation. A numerical model based on the semi-discrete methodology presented by the authors earlier was developed further to analyze and understand the fracture mechanisms and interactions between the different failure modes, namely transverse cracking/ splitting, delamination and fiber breakage. The present modeling strategy is able to reproduce the experimental results accurately regarding the damage progression, final failure and overall response.
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