Dynamic energy release rate in couple-stress elasticity

Morini, Lorenzo ORCID: https://orcid.org/0000-0001-7155-5036, 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:	Schools > Engineering
Subjects:	Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	IOP Publishing
ISSN:	1742-6596
Last Modified:	21 Oct 2022 06:54
URI:	https://orca.cardiff.ac.uk/id/eprint/98724

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