Predicting pull-off strengths of bonded joints using cohesive elements

Lee, M, Blacklock, M, Janardhana, M and Wang, C 2014, 'Predicting pull-off strengths of bonded joints using cohesive elements', in R. Das and S. John (ed.) Proceedings of the 8th Australasian Congress on Applied Mechanics, Melbourne, Australia, 24-28 November 2014, pp. 1-8.


Document type: Conference Paper
Collection: Conference Papers

Title Predicting pull-off strengths of bonded joints using cohesive elements
Author(s) Lee, M
Blacklock, M
Janardhana, M
Wang, C
Year 2014
Conference name ACAM 8
Conference location Melbourne, Australia
Conference dates 24-28 November 2014
Proceedings title Proceedings of the 8th Australasian Congress on Applied Mechanics
Editor(s) R. Das and S. John
Publisher Engineers Australia
Place of publication Australia
Start page 1
End page 8
Total pages 8
Abstract Recent research into the effect of adherend thickness on the pull-off strength of adhesively bonded joints revealed that the pull-off strength increases with panel thickness, and prediction of this phenomenon needs an empirically determined characteristic distance in conjunction with the modified Drücker-Prager/cap plasticity material model. This paper presents an improved approach for capturing this adherend thickness effect using a cohesive element approach. The influence of cohesive law shape on the predicted strength is presented, with the results showing that a non-softening cohesive law provides the best predictions of joint strengths.
Subjects Composite and Hybrid Materials
Keyword(s) Bond strength prediction
Cohesive element
Fracture toughness criteria
Copyright notice © 2014 Author(s)
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