Single-Lap Joints of Similar and Dissimilar Adherends Bonded with an Acrylic Adhesive

• Type: Article in International Scientific Journal
• Date: 2009

Authors

A. M. G. Pinto (Author) Other; A. G. Magalhães (Author) Other; R. D. S. G. Campilho (Author) Other; M. F. S. F. de Moura (Author) FEUP; A. P. M. Baptista (Author) FEUP

Journal

Title: Journal of Adhesion

Vol. 85 No. 6

Pages: 351-376

ISSN: 0021-8464

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 77 Citations

ISI Web of Science

Scopus - 88 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology > Chemical engineering

Other information

Authenticus ID: P-003-QS8

DOI: 10.1080/00218460902880313

Abstract (EN): In this study, the tensile strength of single-lap joints (SLJs) between similar and dissimilar adherends bonded with an acrylic adhesive was evaluated experimentally and numerically. The adherend materials included polyethylene (PE), polypropylene (PP), carbon-epoxy (CFRP), and glass-polyester (GFRP) composites. The following adherend combinations were tested: PE/PE, PE/PP, PE/CFRP, PE/GFRP, PP/PP, CFRP/CFRP, and GFRP/GFRP. One of the objectives of this work was to assess the influence of the adherends stiffness on the strength of the joints since it significantly affects the peel stresses magnitude in the adhesive layer. The experimental results were also used to validate a new mixed-mode cohesive damage model developed to simulate the adhesive layer. Thus, the experimental results were compared with numerical simulations performed in ABAQUS, including a developed mixed-mode (I+II) cohesive damage model, based on the indirect use of fracture mechanics and implemented within interface finite elements. The cohesive laws present a trapezoidal shape with an increasing stress plateau, to reproduce the behaviour of the ductile adhesive used. A good agreement was found between the experimental and numerical results.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 26