A Two-Dimensional Stress Analysis of a Butt Adhesive Joint Filled with Rigid Circular Fillers in the Adhesive Subjected to a Tensile Load

Abstract

With recent wide use of adhesively bonded structures in many engineering fields, establishments of an estimation method of joint strength and an optimal strength design method for the joints are required. A lot of experimental and analytical investigations have been done concerning the joint strength and some of them have conducted more practical cases, i.e., the joints have some imperfections such as hole defects in an adhesive or debonds at an interface of the joint [1],[2]. Furthermore, modified adhesives by adding fillers such as alumina, silica and rubber are now commonly used in order to improve the static and dynamic joint strength. So far, only a few studies have conducted analytically to the joints which contain fillers in an adhesive and it is needed to examine the mechanical characteristics of such joints under various kinds of loadings for practical use.