Context
Fracture analysis of delaminated composite panels in compression using numerically integrated MVCCI
Title:
Fracture analysis of delaminated composite panels in compression using numerically integrated MVCCI
Archive:
Eprints@iisc
Author(s):
Singh, KL
Dattaguru, B
Ramamurthy, TS
Dattaguru, B
Ramamurthy, TS
Date:
2006-08-01
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.
Index terms:
Discipline(s):
Aerospace Engineering
Subject(s):
Method/Approach:
Coverage:
Publisher:
Contributors:
Source:
Language:
Relation:
Type:
Journal Article
Format:
Copyright Information:
Browse Archive