Bonding dissimilar materials via adhesively bonded spot-welded joints: cohesive zone model technique

Paygozar B., Dizeci Ş., da Silva L.

Journal of Adhesion Science and Technology, vol.34, no.21, pp.2352-2363, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 21
  • Publication Date: 2020
  • Doi Number: 10.1080/01694243.2020.1761043
  • Journal Name: Journal of Adhesion Science and Technology
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.2352-2363
  • Keywords: Single-strap joint, failure load, dissimilar material, cohesive zone model, MECHANICAL-BEHAVIOR, EPOXY ADHESIVE
  • TED University Affiliated: Yes

Abstract

© 2020 Informa UK Limited, trading as Taylor & Francis Group.This study investigates the single-strap joints (adhesively bonded spot-welded) under static loading. Experimental tensile tests are carried out to validate the numerical analyses. For this purpose, the specimens of dissimilar materials were prepared by joining them with a thin layer of a two-component epoxy-based adhesive at one side and spot welding at the other side. Then, they were tested under tensile-loading conditions. The numerical analyses were performed according to the cohesive zone model (CZM) to estimate the failure loads of the joints. The failure loades of the joints with different dimensions were studied to evaluate the conditions causing the cohesive failure of either the adhesive layer or the weld nugget. It is shown that with minor changes in the bondline and weld designs, the joining process of the dissimilar materials will be more feasible.