Analytical Determination of Residual Strength and Linkup Strength for Flat Panels, with Multiple Site Damage

Elangovan, R and Ramamurthy, TS and Dattaguru, B and Selladurai, V (2014) Analytical Determination of Residual Strength and Linkup Strength for Flat Panels, with Multiple Site Damage. In: ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, 39 (3). pp. 2271-2276.

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Abstract

The problem of multiple site damage in aged airplane fuselage is handled in this paper. The analytical and numerical procedures used for the estimation of the strength of a flat panel with such multi-site damage are presented. Further, numerical results are presented on the residual strength of the panel using fracture mechanics-based approach and the stress levels when the leading crack is likely to link up with multiple site damage cracks. The presence of multiple site damage cracks in the vicinity of leading crack significantly decreases the residual strength of the panel. The model is verified using experimental data from the open literature and the predictions are in good agreement with the measured residual strength.

Item Type:	Journal Article
Publication:	ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
Publisher:	SPRINGER HEIDELBERG
Additional Information:	Copyright for this article belongs to the SPRINGER HEIDELBERG, GERMANY
Keywords:	Multi-site damage; Aging structures; Modified virtual crack closure integral; Analytical predictions
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	22 Apr 2014 09:05
Last Modified:	22 Apr 2014 09:06
URI:	http://eprints.iisc.ac.in/id/eprint/48841

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