A micropolar cohesive damage model for delamination of composites

Rahaman, Md M and Deepu, SP and Roy, D and Reddy, JN (2015) A micropolar cohesive damage model for delamination of composites. In: COMPOSITE STRUCTURES, 131 . pp. 425-432.

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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. (C) 2015 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	COMPOSITE STRUCTURES
Publisher:	ELSEVIER SCI LTD
Additional Information:	Copy right for this article belongs to the ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Keywords:	Micro-rotations; Micropolar cohesive law; Length scales; Mesh-free methods
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	24 Sep 2015 06:53
Last Modified:	24 Sep 2015 06:53
URI:	http://eprints.iisc.ac.in/id/eprint/52427

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