| 摘要 |
<p>Provided is a fracture surface analysis system and method featuring excellent accuracy and reproducibility and designed to estimate fracture mechanics data in a simplified manner. A surface irregularities waveform that includes fracture surface irregularities forming a steplike shape of a fracture surface is acquired (step S1), and after an overall gradient of the surface irregularities waveform has been corrected and noise eliminated from this waveform (steps S2, S3), positions of uneven portions present on any measuring line are identified from the surface irregularities waveform and the number of uneven portions on the measuring line is counted (step S4), whereby an average distance between the uneven portions on the measuring line is then calculated (step S5), and next the fracture mechanics data relating to a stress intensity factor, crack growth rate, or stress exerted during formation of the fracture surface, is estimated from the average distance between the uneven portions (step S6).</p> |
