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Dynamic energy release rate in couple-stress elasticity

Morini, Lorenzo, Piccolroaz, A and Mishuris, G 2013. Dynamic energy release rate in couple-stress elasticity. Journal of Physics: Conference Series 451 , 012014. 10.1088/1742-6596/451/1/012014

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Abstract

This paper is concerned with energy release rate for dynamic steady state crack problems in elastic materials with microstructures. A Mode III semi-infinite crack subject to loading applied on the crack surfaces is considered. The micropolar behaviour of the material is described by the theory of couple-stress elasticity developed by Koiter. A general expression for the dynamic J-integral including both traslational and micro-rotational inertial contributions is derived, and the conservation of this integral on a path surrounding the crack tip is demonstrated.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
Publisher: IOP Publishing
ISSN: 1742-6596
Last Modified: 17 Oct 2019 15:04
URI: http://orca.cf.ac.uk/id/eprint/98724

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