Basic study on the continuous damage evaluation derived from the luminance histogram of the fractoluminescence with mechanoluminescence.

Abstract

It is an urgent problem to maintain the high-level urban function by evaluating the serious damage of the structure immediately after the disaster of typhoon and earthquake in Japan. However, it is difficult to find the evaluation of damage and a cumulative external force for a damaged structure immediately after a disaster. It is most important technology to measure the cumulative external force quickly, easily and immediately to evaluate the relationship between the energy applied to the structure and the damage. In this study, we propose a method for evaluating the degree of damage by simply and extensively measuring the cumulative external force of a structure by using a mechanoluminescent material (ML) that emits light from the stress concentration area by applying a mechanical external force.