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Simulation of an adhesive layer using a novel mixed mode cohesive law
University of Skövde, School of Technology and Society. (Mechanics of materials)
University of Skövde, School of Technology and Society. (Mechanics of materials)ORCID iD: 0000-0003-0899-8939
2006 (English)In: CDCM 2006 - Conference on Damage in Composite Materials 2006 18th-19th of September 2006 in Stuttgart, Germany: Online-Proceedings, 2006Conference paper, Published paper (Refereed)
Abstract [en]

The purpose of this work is to develop a flexible cohesive law to simulate the constitutive behaviour of an adhesive layer under mixed mode loading. A mixed mode cohesive law that captures the linear elastic and softening behaviour before fracture is presented. This simple model uses a coupled formulation to describe the mixed mode cohesive behaviour. It also allows for different fracture parameters, such as fracture energy, strength and critical separation in different mode mixities. Thus, the fracture process in mode I (peel), in mode II (shear) or in mixed mode (a combination of peel and shear) can be modelled without the usual constraint of a common fracture energy in peel and shear. Examples are given of FE-implementation of the normalised cohesive law, namely for the Unsymmetric Double Cantilever Beam (UDCB) specimen and the Mixed-mode double Cantilever Beam (MCB) specimen. Both specimens are adhesively bonded and loaded in mixed-mode.

Place, publisher, year, edition, pages
2006.
Keywords [en]
cohesive law, fracture energy, traction-separation relation, mixed mode
Identifiers
URN: urn:nbn:se:his:diva-7117OAI: oai:DiVA.org:his-7117DiVA, id: diva2:602796
Conference
Conference on Damage in Composite Materials 2006 18th-19th of September 2006 in Stuttgart, Germany
Note

"The conference is organized by the members of the Collaborative Research Centers (CRC) SFB 381, "Characterization of Damage Evolution in Fiber Reinforced Composites by Nondestructive Testing Methods". The aim of the joint effort of the CRC members, various European Universities, DFG and DGZfP is to raise the level of awareness on the latest developments for the benefit of the scientific community. A collection of the scientific results of the Collaborative Research Center SFB 381 can be found in: Busse, G. Kröplin, B.-H., Wittel, F.K. (Eds.): Damage and its Evolution in Fiber-Composite Materials:. Simulation and Non-Destructive Evaluation. ISBN 3930683903, University of Stuttgart". https://www.ndt.net/article/cdcm2006/foreword.htm

Available from: 2013-02-04 Created: 2013-02-04 Last updated: 2020-01-31Bibliographically approved

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Högberg, J. LiSalomonsson, Kent

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