Iosipescu shear test for adhesive materials and bonded frp elements

Abstract

The Iosipescu or the V-notch shear test is an experimental method capable of determining the interfacial shear strength and the shear modulus of fiber reinforced polymer (FRP) composite materials. Although this method has been found convenient and adapted to a large variety of composite materials, it remains significantly underutilized for composite bonded joint samples and adhesive specimens. This paper presents some of the latest developments of the Iosipescu testing method, highlighting several implementation concerns, like specimen manufacture and fixture arrangement for FRP bonded joints and adhesive specimens.