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Theoretical and numerical investigation on internal instability phenomena in composite materials

Carpinteri, Alberto and Paggi, Marco and Zavarise, Giorgio Theoretical and numerical investigation on internal instability phenomena in composite materials. In: Proceedings of the 11th International Conference on Fracture 2005 (ICF11). Curran Associates, pp. 5928-5933. ISBN 978-1-61782-063-2 (2005)

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Abstract

Instability phenomena occurring in the microstructure of composite materials are investigated. To this aim, a complete description of the mechanical behavior of bi-material interfaces in composite materials requires the definition of both a cohesive law involving damage for the debonding stage, and a contact model during the closure of the interface. Both formulations are herein presented and implemented in the FE code FEAP. Numerical examples showing the transition from a snap-back instability to a stable mechanical response are presented.

Item Type: Book Section
Additional Information: 11th International Conference on Fracture, Turin, Italy, March 20-25, 2005
Subjects: T Technology > TJ Mechanical engineering and machinery
Research Area: Computer Science and Applications
Depositing User: Prof Marco Paggi
Date Deposited: 22 Nov 2013 09:59
Last Modified: 09 Oct 2014 09:20
URI: http://eprints.imtlucca.it/id/eprint/1927

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