Multi-linear stress analysis in adhesively bonded double-lap joint

Sayman O., Arikan V., Dogan A., Soykok I. F.

JOURNAL OF COMPOSITE MATERIALS, vol.48, no.12, pp.1497-1504, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 12
  • Publication Date: 2014
  • Doi Number: 10.1177/0021998313487936
  • Journal Name: JOURNAL OF COMPOSITE MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1497-1504
  • Keywords: finite element methods, multi-linear solution, double-lap joint, adhesive joint, Composite, STRENGTH, PREDICTION, ADHERENDS, FAILURE, MODEL
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this study, an elastic-plastic stress analysis is carried out in fiber glass-epoxy adherends with DP460 ductile adhesive. Multi-linear plastic solution is applied to the joints. Analytical results are checked using a multi-linear finite element solution, ANSYS 12. Analytical and numerical solutions are found to be in good agreement. The thickness of the adherend is chosen as 1.8 mm, 2.5 mm and 3 mm. It is observed that when the thickness of the adherend is increased, the intensity of the peel stress raises. Shear and peel stresses are found to be the highest at or around the free ends of the adhesive. The multi-linear solution yields a closer solution with respect to the bilinear solution since it follows the stress-strain diagram.