Fracture analysis of delaminated composite panels in compression using numerically integrated MVCCI

Singh, KL and Dattaguru, B and Ramamurthy, TS (2006) Fracture analysis of delaminated composite panels in compression using numerically integrated MVCCI. In: Mechanics of Advanced Materials and Structures, 13 (4). pp. 303-315.

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Abstract

Delamination tolerance is one of the key issues in laminated composites used in high technology structures. Delamination in these structures could grow due to repeated in-plane compressive loading during operation and the delamination tolerance levels are obtained by comparing mode-I SERR component with the corresponding fatigue threshold values. The Modified Virtual Crack Closure Integral (MVCCI) is used to estimate individual mode SERR components in a mixed-mode situation, which occurs at an embedded delamination. The present work proposed a numerical integration for the first time to evaluate the MVCCI for Hexa20 elements used in three-dimensional finite element analysis. Extensive numerical results are presented including a parametric study on a typical laminate.

Item Type:	Journal Article
Publication:	Mechanics of Advanced Materials and Structures
Publisher:	Taylor and Francis
Additional Information:	Copyright of this article belongs to Taylor and Francis Group.
Keywords:	Element;Growth
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	31 May 2006
Last Modified:	19 Sep 2010 04:28
URI:	http://eprints.iisc.ac.in/id/eprint/7190

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