부산대학교 도서관

The damage properties of fiber reinforced polymers (FRPs) emcompassing self-healing of interfacial debonding have been investigated numerically. Finite element analyses were performed using a three-dimensional model to predict the damage evolution in single edge notched tensile (SENT) specimens of unidirectional FRPs containing fiber strands coated with the self-healing polymer. Microcracking of the matrix and the coating layer was detected by the von Mises criterion. Maximum stress criterion was also used to evaluate breaking of the fiber strand. The effects of specimen thickness and coating properties on the damage properties are examined. Numerical results from the finite element analysis are compared with experimental data.