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Cohesive zone modelling and the fracture process of structural tape
University of Skövde, School of Engineering Science. University of Skövde, The Virtual Systems Research Centre. (Materialmekanik, Mechanics of Materials)ORCID iD: 0000-0003-0787-4942
Department of Wind Energy, Technical University of Denmark, DK-4000 Roskilde, Denmark.ORCID iD: 0000-0001-8335-0855
University of Skövde, School of Engineering Science. University of Skövde, The Virtual Systems Research Centre. (Materialmekanik, Mechanics of Materials)
2016 (English)In: Proceedia Structural Integrity, ISSN 2452-3216, Vol. 2, 235-244 p.Article in journal (Refereed) Published
Abstract [en]

Structural tapes provide comparable toughness as structural adhesives at orders of magnitude lower stresses. This is potentially useful to minimize the effects of differences in thermal expansion in the joining of mixed materials. The strength properties are modelled using the cohesive zone model. Thus, a cohesive zone represents the tape, i.e. stresses in the tape are transmitted to the substrates through tractions determined by the separations of the surfaces of substrates. This simplification allows for structural analysis of large complex structures. The relation between the traction and the separation is measured experimentally using methods based on the path independence of the J-integral. Repeated experiments are performed at quasi-static loading. A mixed mode cohesive law is adapted to the experimental data. The law is implemented as a UMAT in Abaqus. Simulations show minor thermal distortions due to thermal loading and substantial structural strength in mechanical loading of a mixed material structure.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 2, 235-244 p.
Keyword [en]
Mixed material joint, structural strength, FEA, J-integral method
National Category
Applied Mechanics
Research subject
URN: urn:nbn:se:his:diva-12733DOI: 10.1016/j.prostr.2016.06.031ISI: 000387976800030OAI: oai:DiVA.org:his-12733DiVA: diva2:950724
21st European Conference on Fracture, ECF21, 20-24 June 2016, Catania, Italy
ÅForsk Tape
ÅForsk (Ångpanneföreningen's Foundation for Research and Development), 14-312

"Open Access funded by European Structural Integrity Society"

Available from: 2016-08-02 Created: 2016-08-02 Last updated: 2017-01-09Bibliographically approved

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Stigh, UlfBiel, AndersSvensson, Daniel
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