Strength prediction of single- and double-lap joints by standard and extended finite element modelling

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Campilho, RDSG (Author) Other; Banea, MD (Author) FEUP; Pinto, AMG (Author) Other; da Silva, LFM (Author) FEUP; de Jesus, AMP (Author) Other

Journal

Title: International Journal of Adhesion and Adhesives

Vol. 31

Pages: 363-372

ISSN: 0143-7496

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 129 Citations

Scopus - 233 Citations

Scientific classification

FOS: Engineering and technology > Chemical engineering

Other information

Authenticus ID: P-002-Q4K

DOI: 10.1016/j.ijadhadh.2010.09.008

Abstract (EN): The structural integrity of multi-component structures is usually determined by the strength and durability of their unions. Adhesive bonding is often chosen over welding, riveting and bolting, due to the reduction of stress concentrations, reduced weight penalty and easy manufacturing, amongst other issues. In the past decades, the Finite Element Method (FEM) has been used for the simulation and strength prediction of bonded structures, by strength of materials or fracture mechanics-based criteria. Cohesive-zone models (CZMs) have already proved to be an effective tool in modelling damage growth, surpassing a few limitations of the aforementioned techniques. Despite this fact, they still suffer from the restriction of damage growth only at predefined growth paths. The eXtended Finite Element Method (XFEM) is a recent improvement of the FEM, developed to allow the growth of discontinuities within bulk solids along an arbitrary path, by enriching degrees of freedom with special displacement functions, thus overcoming the main restriction of CZMs. These two techniques were tested to simulate adhesively bonded single- and double-lap joints. The comparative evaluation of the two methods showed their capabilities and/or limitations for this specific purpose.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10