Abstract
In this study, K value and the occurrence of permanent deformation in TDCB specimen, which has shorter specimen length than traditional TDCB specimen, were evaluated by elastic-plastic analysis. In the case of TDCB specimen that has 35mm length, it is demonstrated that K values become almost constant with m value of 0.560 and there is no permanent deformation under the load condition of K=25MPa√<m>.
