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Dynamic energy release rate in couple-stress elasticity

Morini, Lorenzo and Piccolroaz, Amdrea and Mishuris, Gennady Dynamic energy release rate in couple-stress elasticity. Journal of Physics: Conference Series, 451 (1). 012014. ISSN 1742-6588 (2013)

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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
Identification Number: 10.1088/1742-6596/451/1/012014
Additional Information: Presented at International Symposium on Dynamic Deformation and Fracture of Advanced Materials, Loughborough University, UK, 9-11 September, 2013.
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Research Area: Computer Science and Applications
Depositing User: Caterina Tangheroni
Date Deposited: 15 Mar 2016 10:05
Last Modified: 15 Mar 2016 10:05
URI: http://eprints.imtlucca.it/id/eprint/3236

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