Geometrical optimization of adhesive joints under tensile impact loads using cohesive zone modelling

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Valente, JPA (Author) Other; Campilho, RDSG (Author) Other; Marques, EAS (Author) FEUP; Machado, JJM (Author) FEUP; da Silva, LFM (Author) FEUP

Journal

Title: International Journal of Adhesion and Adhesives

Vol. 97

ISSN: 0143-7496

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 18 Citations

Scopus - 22 Citations

Other information

Authenticus ID: P-00R-DF3

DOI: 10.1016/j.ijadhadh.2019.102492

Abstract (EN): Industrial developments have led to an increasingly wide implementation of adhesive bonding. Due to the variability of adhesive bonding performance caused by different adhesive properties, it is necessary to validate Finite Element Method (FEM) tools. It is possible to increase the performance of adhesive joints when subjected to impact loadings, without making complex design changes, with the variation of geometric parameters or by modifying the adherends' geometry. This work compares the results of different geometric changes applied to a single-lap joint (SLJ), when subjected to impact, through Cohesive Zone Models (CZM). Geometry modifications of the SLJ are made by introducing outer and inner chamfers into the adhesives, as well as adding adhesive fillets, to observe the effects of these modifications with different types of adhesives. The combination of the geometric changes that produce the best result is subsequently made. As a result of this work, the CZM technique was validated for the impact strength prediction of adhesive joints and the optimal joint geometries were defined as a function of the adhesive.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10