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Modeling of delamination using a discretized cohesive zone and damage formulation
Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Solid Mechanics .
Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Solid Mechanics .
Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Solid Mechanics .
2002 (English)In: Composites Science And Technology, ISSN 0266-3538, E-ISSN 1879-1050, Vol. 62, no 10-11, 1299-1314 p.Article in journal (Refereed) Published
Abstract [en]

Delamination initiation and growth are analyzed by using a discrete cohesive crack model. The delamination is constrained to grow along a tied interface. The model is derived by postulating the existence of a maximum load surface which limits the adhesive forces in the process zone of the crack. The size of this maximum load surface is made dependent on the amount of dissipated crack opening work, such that the maximum load surface shrinks to zero as a predefined amount of work is consumed. A damage formulation is used to reduce the adhesive forces. Mode I, II and III loading or any combined loading is possible. An analytical solution is obtained for a single mode opening and the implications of this result on the governing equations is discussed. The delamination model is implemented in the finite element code LS-DYNA and simulation results are shown to be in agreement with experimental results. © 2002 Elsevier Science Ltd. All rights reserved.

Place, publisher, year, edition, pages
2002. Vol. 62, no 10-11, 1299-1314 p.
Keyword [en]
A. Carbon fibers, C. Crack, C. Delamination, C. Laminates
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-46938DOI: 10.1016/S0266-3538(02)00070-2OAI: oai:DiVA.org:liu-46938DiVA: diva2:267834
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Borg, RikardNilsson, LarsgunnarSimonsson, Kjell

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  • apa
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  • de-DE
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