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Simulating DCB, ENF and MMB experiments using shell elements and a cohesive zone model
Linköping University, The Institute of Technology. Linköping University, Department of Mechanical Engineering, Solid Mechanics.
Linköping University, The Institute of Technology. Linköping University, Department of Mechanical Engineering, Solid Mechanics.
Linköping University, The Institute of Technology. Linköping University, Department of Mechanical Engineering, Solid Mechanics.
2004 (English)In: Composites Science And Technology, ISSN 0266-3538, E-ISSN 1879-1050, Vol. 64, no 2, 269-278 p.Article in journal (Refereed) Published
Abstract [en]

A delamination model for shell elements is presented. It consists of an adhesive penalty contact formulation for initially tying shells together and a cohesive zone model for degrading the adhesive forces. An adhesive contact used between shell elements has to account for the thickness offset, such that the rotational degrees of freedom in the shell elements are included in the algorithm. This is considered in the present contact model and the complete delamination model is implemented in the explicit Finite Element code LS-DYNA. By preventing delamination growth the delamination model can be turned into a tied contact. As such it is used in two FE-models, where plates are bonded together and subjected to various loads. The adhesive penalty contact performs well. The complete delamination is validated by simulating the Double Cantilever Beam, End-Notch Flexural and Mixed Mode Bending setups, and the results are shown to be in agreement with experimental data.

Place, publisher, year, edition, pages
2004. Vol. 64, no 2, 269-278 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-23940DOI: 10.1016/S0266-3538(03)00255-0Local ID: 3489OAI: oai:DiVA.org:liu-23940DiVA: diva2:244255
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2017-12-13

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Borg, RikardNilsson, LarsgunnarSimonsson, Kjell

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