Spannraft L, Possart G, Steinmann P, Mergheim J (2022)
Publication Type: Journal article
Publication year: 2022
Book Volume: 9
Article Number: 100137
DOI: 10.1016/j.finmec.2022.100137
This contribution presents a geometrically linear and thermodynamically consistent model for generalized mechanical interfaces. The interface's response is kinematically non-coherent, i.e. allows for a displacement jump and for anisotropic cohesive failure, and kinetically non-coherent, i.e. allows for traction jumps across the interface and membrane damage. The traction jump ensues from an interfacial (in)elasticity formulation which introduces additional membrane stiffness and membrane stresses under in-plane stretch in the interface. The cohesive and membrane degradations are coupled via damage variables determined by the different deformation modes to account for their interaction. A numerical example applies the presented model to brittle interfaces adhesively bonding two substrates. By subjecting the interface to a small in-plane stretch prior to performing a peel test, the influence of damage coupling on the mechanical response is illustrated.
APA:
Spannraft, L., Possart, G., Steinmann, P., & Mergheim, J. (2022). Generalized interfaces enabling macroscopic modeling of structural adhesives and their failure. Forces in Mechanics, 9. https://dx.doi.org/10.1016/j.finmec.2022.100137
MLA:
Spannraft, Lucie, et al. "Generalized interfaces enabling macroscopic modeling of structural adhesives and their failure." Forces in Mechanics 9 (2022).
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