Pages 645-650
The most effective material in shape memory alloy (SMA) is the TiNi alloy, because its shape recovery characteristics are excellent. The composite material was molded with shape memory function, which the fiber is Ti_<50>-Ni_<50> shape memory alloy and the matrix is epoxy resin having good adhesive and optical sensitivity. It has been assured that this composite material could be used as the model material of photoelastic experiment for intelligent material or structures. In this research, the composite material with shape memory function is used as model material of photoelastic experiment. Photoelastic experimental hybrid method is developed in this research. It is confirmed that it is valuable on the obtaining stress intensity factor and the separation of stress components from only isochromatic data. The measuring method of stress intensity factor of intelligent material by photoelectric experiment is introduced.
