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Modelling of a patch repair to a thin cracked sheet

Umamaheswar, Turaga VRS and Singh, Ripudaman (1999) Modelling of a patch repair to a thin cracked sheet. In: Engineering Fracture Mechanics, 62 (2-3). pp. 267-289.

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Official URL: http://dx.doi.org/10.1016/S0013-7944(98)00088-5


Integrity enhancement of damaged or design deficient structures through repairs is attracting considerable engineering attention. Bonded composite patch repairs to cracked metallic sheets offer various advantages over riveted doubler type, particularly for airframe applications. This paper first reviews the R&D activity in the area of structural repairs. It then approaches the problem of a composite patch repair to a cracked aluminium sheet with different finite element modelling strategies and compares their outcome. The efficient finite element modelling approach thus established is used to study the effect of patch material, patch size, patch symmetry and adhesive thickness on repair performance as the crack grows in the repair configuration. (C) 1999 Elsevier Science Ltd. All rights reserved.

Item Type: Journal Article
Publication: Engineering Fracture Mechanics
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Composite repair patch;Non-linear two-and three-dimensional FEM;Parametric study
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 30 Jun 2011 11:07
Last Modified: 30 Jun 2011 11:07
URI: http://eprints.iisc.ac.in/id/eprint/38672

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