抄録
In the present study, we have developed a system for evaluating numerous formulas of three-dimensional (3D) stress intensity factors (SIFs) found in literature. In general, this kind of system has to be flexible in extending its functions, and easy for ordinary engineers to use. In addition, it is important to keep system compact by sharing common functions among various cracks and structure geometries. To meet those requests, the present system has been fully designed based on an object-oriented programming approach, and built in a personal computer using one of object-oriented languages Visual C++. Its first version contains about 50 different formulas of 3D-SIFs.