樋口 耕平 (Kohei HIGUCHI)
Damages in composite matelials are mostly governed by interfacial debonding. In order to tale this into account, we employ an analytical model considering partial debonding along interface, and formulate a finite element. The model utilizes a concept where a moduli of an inclusion is replaced by an equivalent one of debonded inclusions. Through some ezamples, usefulness of the model is shown. As an application excavation analysis of a tunnel in jointed rock mass is carried out, and the results are compared with other observations.