Development of design charts for stress intensity factors at tips of multi-site cracks in unstiffened curved panels

Elangovan, R and Dattaguru, B and Ramarnurthy, TS and Selladurai, V (2014) Development of design charts for stress intensity factors at tips of multi-site cracks in unstiffened curved panels. In: ENGINEERING FRACTURE MECHANICS, 119 . pp. 116-123.

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Abstract

Multi-site damage need to be addressed and evaluated in order to assess the integrity of aging aircraft structures. One of the problems recognized in the recent times is the effect of interaction between two or more cracks in the close neighborhood in such structures. The present paper deals with such a problem and presents numerical estimates of stress intensity factors at a crack tip in an un-stiffened curved panel with a secondary crack in the vicinity of a primary crack. The results are presented in the form of design charts. These results should be useful in evaluation in the damage tolerance evaluation of aircraft structures with multi-site damage. (C) 2014 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	ENGINEERING FRACTURE MECHANICS
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Additional Information:	Copyright for this article belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Keywords:	Multi-site damage; Aging structures; Modified Virtual Crack Closure Integral; Stress intensity factor
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	16 Jun 2014 10:28
Last Modified:	16 Jun 2014 10:28
URI:	http://eprints.iisc.ac.in/id/eprint/49191

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