1999 年 1999 巻 44 号 p. 31-35
Evaluations of material strength characteristics based on experimental data are necessary for the development of the high-strength spring steels and design of the springs. We constructed the material strength database for coil springs on the network in order to be utilized for a material development and a design. This database includes fatigue properties and other mechanical properties of the cold forming wire spring steel, and is composed of three different types of database, that is, test results, analyzed data and related standards. This database system would permit a search, analysis and graphic presentation of the experimental data. It has approximately fifty commands developed originally, and can make a new relationship among several material strength properties using a statistical regression such as a multiple regression analysis. This system can also retrieve and display material strength characteristics in arranged manner, such a form of the diagram, as S-N diagram and endurance limit diagram. The WWW browser is used as the interface of this database system.