Journal Articles International Journal of Fracture Year : 2023

Theoretical analysis of self-similar crack propagation along viscoelastic and elasto–viscoplastic interface in a double cantilever beam test

Abstract

As well as most polymer materials, adhesives generally exhibit significant viscous behaviour over a wide temperature range. However, strain rate sensitivity, relaxation or creep phenomena are rarely explicitly considered when crack propagation phenomena along adhesively bonded joints are involved. In the present contribution, a detailed analysis of crack propagation along viscoelastic and elasto–viscoplastic interface in a double cantilever beam (DCB) test is proposed. The Nishihara Model is used for modelling the interface separation mechanical response. Assuming self-similar crack propagation regime, a Eulerian representation can be used to simplify the resolution of the constitutive equations which control the stress/strain distribution along the fracture process zone (FPZ) combined with a finite difference resolution technique to evaluate adhesive strain/stress evolution along the bondline. Parametric analysis is then proposed to evaluate the relation between crack propagation conditions and the interface rate-dependent behaviour.
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hal-04161573 , version 1 (13-07-2023)

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J. Marquez Costa, J. Jumel. Theoretical analysis of self-similar crack propagation along viscoelastic and elasto–viscoplastic interface in a double cantilever beam test. International Journal of Fracture, 2023, 241, pp.233-249. ⟨10.1007/s10704-023-00697-9⟩. ⟨hal-04161573⟩
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