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Behaviour of Bi-material interface cracks in the presence of material nonlinearity of adherends

Dattaguria, B and Muthukumar, R (2008) Behaviour of Bi-material interface cracks in the presence of material nonlinearity of adherends. In: 9th International Symposium on Plasticity and Impact Mechanics, AUG 21-24, 2007, Ruhr Univ Bochum, pp. 295-303.

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The well known features of crack face interpenetration/contact at the tip of an interface crack is re-examined using finite element analysis and assuming material nonlinear properties for the adherends. It was assumed in literature that the crack tips are fully open at all load levels in the presence of material nonlinearity of the adherends. Analysis for the case of remote tension shows that even in the presence of material nonlinearity, crack tip closes at small load levels and opens above a certain load level. Mixed-mode fracture parameters are evaluated for the situation when the crack tips are fully open. Due to the presence of nonlinearity, the mixed-mode fracture parameters are measured with the symmetric and anti-symmetric components of J-integral. The present analysis explains the sequence of events at the interface crack tip with progressively increasing remote tension load for the case of adherends with material nonlinear behaviour.

Item Type: Conference Paper
Publication: Defence Science Journal
Publisher: Defence Scientific Information Documentation Centre
Additional Information: Copyright of this article belongs to Defence Scientific Information Documentation Centre.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 08 Mar 2010 07:40
Last Modified: 08 Mar 2010 07:40
URI: http://eprints.iisc.ac.in/id/eprint/26014

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