抄録
Since evidences of fracture processes are remained on the fracture surfaces, a fractography method is usually applied to failure analysis of actual components. This method, however, contains some problems such as lack in objectivity to the analysis result, requirement for highly skilled technique, and retirement of aging skilled operators without handing down technique to next generation.
In order to solve these problems, it is considered that quantitative parameters should be introduced to fracture surface analysis. In this paper, therefore, we develop a fracture surface database system which can be easily used on the Internet to support unskilled engineers to analyze fracture surfaces. In this database system, users can search the fracture surfaces by key words like fracture modes, materials, and so on. In addition, this database system is designed so as to compute characteristic parameters of fracture surfaces such as roughness parameters and fractal dimension. The users can compare images and make decision on the fracture surface analysis based on the characteristic parameters. This system also helps document management automatically that currently relies on engineers in charge and contributes to improve data reusability.
