THEORETICAL ANALYSIS ON INCREASE IN DEBONDING LOAD BY STEPPING ENDS OF CFRP STRIPS

Abstract

The load when CFRP strips peel off from steel plates, namely debonding load is known to become higher by stepping the ends of the CFRP strips. However, the conditions to make the debonding load highest has not been clarified yet. In this paper, in the case two CFRP strips are bonded, that is, one step provided at their ends, the stiffness ratio of the CFRP strips and the length of the step to maximize the debonding load are given by theoretical analysis.