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arXiv · 1504.06939

A Micropolar Cohesive Damage Model for Delamination of Composites

Md. M Rahaman·S P Deepu·D Roy·J N Reddy
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Abstract

A micropolar cohesive damage model for delamination of composites is proposed. The main idea is to embed micropolarity, which brings an additional layer of kinematics through the micro-rotation degrees of freedom within a continuum model to account for the micro-structural effects during delamination. The resulting cohesive model, describing the modified traction separation law, includes micro-rotational jumps in addition to displacement jumps across the interface. The incorporation of micro-rotation requires the model to be supplemented with physically relevant material length scale parameters, whose effects during delamination of modes I and II are brought forth using numerical simulations appropriately supported by experimental evidences.

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Md. M Rahaman, S P Deepu, D Roy, J N Reddy. 2015-04-27. A Micropolar Cohesive Damage Model for Delamination of Composites. https://arxiv.org/abs/1504.06939

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