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Boundary integral formulation for interfacial cracks in thermodiffusive bimaterials

Morini, Lorenzo and Piccolroaz, Amdrea Boundary integral formulation for interfacial cracks in thermodiffusive bimaterials. Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences, 471 (2181). ISSN 0080-4630 (2015)

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An original boundary integral formulation is proposed for the problem of a semi-infinite crack at the interface between two dissimilar elastic materials in the presence of heat flows and mass diffusion. Symmetric and skew-symmetric weight function matrices are used together with a generalized Betti’s reciprocity theorem in order to derive a system of integral equations that relate the applied loading, the temperature and mass concentration fields, the heat and mass fluxes on the fracture surfaces and the resulting crack opening. The obtained integral identities can have many relevant applications, such as for the modelling of crack and damage processes at the interface between different components in electrochemical energy devices characterized by multi-layered structures (solid oxide fuel cells and lithium ions batteries).

Item Type: Article
Identification Number: 10.1098/rspa.2015.0284
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Research Area: Computer Science and Applications
Depositing User: Caterina Tangheroni
Date Deposited: 11 Mar 2016 12:15
Last Modified: 11 Mar 2016 12:15
URI: http://eprints.imtlucca.it/id/eprint/3215

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