Mode II Fracture Toughness of a Brittle and a Ductile Adhesive as a Function of the Adhesive Thickness

Autor:	F. A. C. R. G. de Magalhães, Lucas F. M. da Silva, Fernanda Chaves, M.F.S.F. de Moura
Rok vydání:	2010
Předmět:	Strain energy release rate Toughness Araldite Materials science Fracture mechanics Surfaces and Interfaces General Chemistry Surfaces Coatings and Films Brittleness Fracture toughness Mechanics of Materials Materials Chemistry Fracture (geology) Adhesive Composite material
Zdroj:	The Journal of Adhesion. 86:891-905
ISSN:	1545-5823 0021-8464
DOI:	10.1080/00218464.2010.506155
Popis:	The main goal of this study was to evaluate the effect of the thickness and type of adhesive on the Mode II toughness of an adhesive joint. Two different adhesives were used, Araldite ® AV138/HV998 which is brittle and Araldite 2015 which is ductile. The end notched flexure (ENF) test was used to determine the Mode II fracture toughness because it is commonly known to be the easiest and widely used to characterize Mode II fracture. The ENF test consists of a three-point bending test on a notched specimen which induces a shear crack propagation through the bondline. The main conclusion is that the energy release rate for AV138 does not vary with the adhesive thickness whereas for Araldite 2015, the fracture toughness in Mode II increases with the adhesive thickness. This can be explained by the adhesive plasticity at the end of the crack tip.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c6ac9a9979412e2336559d5ff8cf8111 https://doi.org/10.1080/00218464.2010.506155 Zobrazit plný text záznamu