The problem of interface decohesion in laminated beams is addressed with refer- ence to the double cantilever beam (DCB) geometry. The paper deals with the analysis of the influence of non-uniform bonding properties or interfacial defects on the crack propagation process and its stability. In spite of the relative simplicity of the considered case study, which is under pure Mode I deformation, a contact problem takes place due to the decohesion. The occurrence of contact makes the problem highly non-linear, since the extension of the contact area is a priori unknown. The finite element method with a generalized interface constitutive law is used to enforce the contact constraint along the interface and to model the progress of the delamination process.

A coupled contact and decohesion analysis of laminated beams / Carpinteri, Alberto; Paggi, Marco; Zavarise, Giorgio - In: Proc. IUTAM Symposium on Computational Methods in Contact Mechanics / P. Wriggers and U. Nackenhorst. - STAMPA. - BERLIN : SPRINGER-VERLAG, 2007. - ISBN 9781402064043. - pp. 147-156

A coupled contact and decohesion analysis of laminated beams

Alberto Carpinteri;Marco Paggi;Giorgio Zavarise
2007

Abstract

The problem of interface decohesion in laminated beams is addressed with refer- ence to the double cantilever beam (DCB) geometry. The paper deals with the analysis of the influence of non-uniform bonding properties or interfacial defects on the crack propagation process and its stability. In spite of the relative simplicity of the considered case study, which is under pure Mode I deformation, a contact problem takes place due to the decohesion. The occurrence of contact makes the problem highly non-linear, since the extension of the contact area is a priori unknown. The finite element method with a generalized interface constitutive law is used to enforce the contact constraint along the interface and to model the progress of the delamination process.
2007
9781402064043
Proc. IUTAM Symposium on Computational Methods in Contact Mechanics
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2700644
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