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Analysis of a Crack in a Thin Adhesive Layer between Orthotropic Materials: An Application to Composite Interlaminar Fracture Toughness Test

Opened Access Analysis of a Crack in a Thin Adhesive Layer between Orthotropic Materials: An Application to Composite Interlaminar Fracture Toughness Test

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Autor: Távara Mendoza, Luis Arístides
Mantic, Vladislav
Graciani Díaz, Enrique
Cañas Delgado, José
París Carballo, Federico
Departamento: Universidad de Sevilla. Departamento de Mecánica de Medios Continuos y Teoría de Estructuras
Fecha: 2010
Publicado en: Computer Modeling in Engineering & Sciences, 58 (3), 247-270.
Tipo de documento: Artículo
Resumen: The problem of a crack in a thin adhesive layer is considered. The adherents may have orthotropic elastic behavior which allows composite laminates to be modeled. In the present work a linear elastic-brittle constitutive law of the thin adhesive layer, called weak interface model, is adopted, allowing an easy modeling of crack propagation along it. In this law, the normal and tangential stresses across the undamaged interface are proportional to the relative normal and tangential displacements, respectively. Interface crack propagation is modeled by successive breaking of the springs used to discretize the weak interface. An important feature of the BEM approach developed is that the behavior of the springs is independent of the boundary element mesh, (i.e. distance between springs and boundary element types used). This fact allows, for example, an easy mesh refinement to be performed. The present model allows not only the crack propagation but also the crack initiation to...
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Cita: Távara Mendoza, L.A., Mantic, V., Graciani Díaz, E., Cañas Delgado, J. y París Carballo, F. (2010). Analysis of a Crack in a Thin Adhesive Layer between Orthotropic Materials: An Application to Composite Interlaminar Fracture Toughness Test. Computer Modeling in Engineering & Sciences, 58 (3), 247-270.
Tamaño: 1.696Mb
Formato: PDF

URI: https://hdl.handle.net/11441/72026

DOI: 10.3970/cmes.2010.058.247

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