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Damage and plasticity of adhesive layers: an experimental study
University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.ORCID iD: 0000-0001-8335-0855
University of Skövde, School of Technology and Society. University of Skövde, The Virtual Systems Research Centre.ORCID iD: 0000-0003-0787-4942
2011 (English)In: Procedia Engineering, ISSN 1877-7058, E-ISSN 1877-7058, Vol. 10, 2280-2285 p.Article in journal (Refereed) Published
Abstract [en]

Time independent inelasticity is often modelled as due to plasticity and/or damage. The difference is manifested at reversed loading; plasticity reveals itself by a remaining strain in the unloaded state while damage is revealed by a decrease in the elastic stiffness during unloading. With thin adhesive layers, the deformation is inhomogeneously distributed along the layer. Large deformations occur at the ends of the layer. In the more central parts, the layer is virtually undeformed. This makes a direct measurement of the unloading properties virtually impossible. In the present paper, novel experiments are performed in order to evaluate the inelastic properties of epoxy adhesives. The load is first increased to a level corresponding to 50, 60, 70 or 80% of the fracture energy. The load is then reversed. The first step creates a zone of inelastically deformed adhesive at the start of the layer. During a final loading phase, the properties of this zone are analysed. Major differences due to the loading direction are observed. Some comparisons with simulation models are performed.

Place, publisher, year, edition, pages
Elsevier, 2011. Vol. 10, 2280-2285 p.
Keyword [en]
adhesive, epoxy, elastic-damage, elastic-plastic, ENF-specimen, shear
National Category
Engineering and Technology
Research subject
Technology
Identifiers
URN: urn:nbn:se:his:diva-5660DOI: 10.1016/j.proeng.2011.04.377ISI: 000300451302051Scopus ID: 2-s2.0-80052918646OAI: oai:DiVA.org:his-5660DiVA: diva2:512436
Conference
11th International Conference on the Mechanical Behavior of Materials (ICM), Como, Italy, 2011
Available from: 2012-03-27 Created: 2012-03-27 Last updated: 2015-12-21Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
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  • Other locale
More languages
Output format
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