Residual stress estimation method and Principal stress estimation method using Instrumented Indentation Technique

摘要

The present invention relates to a residual stress evaluation method and a principal stress evaluation method using an instrumentation indentation test. According to one embodiment of the present invention, an instrumentation indentation test using anisotropic pressure particles (nuuppressure particles) It is possible to evaluate the residual stress and the principal stress of the specimen in the direction stressed state.