| 摘要 |
PROBLEM TO BE SOLVED: To provide a mechanical characteristics evaluation method for a surface-modified portion, using the surface-modified portion as a measuring object. SOLUTION: The method includes an elastoplasticity analysis step wherein a condition similar to an indenter indentation test to the measuring object which is the surface-modified portion is simulated, and elastoplasticity analysis is performed by using a numerical value showing the mechanical-physical characteristics of the measuring object as a parameter, and correlation between indenter maximum indentation displacement, residual displacement or elastic displacement and the numerical value showing the mechanical-physical characteristic is acquired and arranged to form a database; an indentation test step, wherein the indenter indentation test is performed actually to the measuring object, and the indenter maximum indentation displacement, the residual displacement or the elastic displacement is acquired from a result of the indenter indentation test; and a mechanical-physical characteristic identification step wherein the indenter maximum indentation displacement, the residual displacement or the elastic displacement acquired in the indentation test step is compared with the correlation formed as the database between the indenter maximum indentation displacement, the residual displacement or the elastic displacement and the numerical value showing the mechanical-physical characteristic, and the numerical value showing the mechanical-physiccal characteristics of the measuring object is identified. COPYRIGHT: (C)2009,JPO&INPIT
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