Investigation on peel stresses of adhesively bonded double-strap and supported single-lap GFRP joints

摘要

This paper presents the results of an experimental investigation (Lee et al., 2007) conducted to characterize peel stresses of adhesively bonded double-strap and supported single-lap glass fiber-reinforced polymer (GFRP) joints. The joints were composed of pultruded GFRP adherends having the same stiffness as the members that would be used in FRP bridge decks. Most specimens exhibited the thin-layer cohesive (TLC) failure pattern or the light-fiber-tear (LFT) failure pattern. The peeling effect was crucial to the failure behavior of adhesively bonded joints.