FRACTURE SURFACE ANALYSIS SYSTEM AND METHOD OF FRACTURE SURFACE ANALYSIS

WIPO Patent Application WO/2011/099270

A1

Provided are a fracture surface analysis system and method which have excellent precision and reproducibility, and which are capable of simply estimating dynamic values. A concavo-convex waveform including a fracture-surface convexoconcavity forming a stepwise shape of the fracture surface is obtained (S1), overall gradient of the concavo-convex waveform is corrected and noise is eliminated (S2, S3), uneven positions existing on any measuring lines are identified and the number of the uneven positions is calculated (S4)on the basis of the concavo-convex waveform, whereby the average interval of uneven positions on the measuring lines is calculated (S5), and stress intensity factor, crack progression rate or dynamic values in association with stress, which is applied when forming the fracture surface is estimated, on the basis of the average interval of uneven positions (S6).

JP2008224503	RESPONSE ANALYSIS SYSTEM
JP4748539	Measuring device for fusion force between pipes and its measuring method

HIRANO ATSUYA (JP)

PCT/JP2011/000703

August 18, 2011

February 09, 2011

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HITACHI LTD (JP)
HIRANO ATSUYA (JP)

G01N3/00; G01N3/32

JP2009085737A	2009-04-23
JP2006118876A	2006-05-11
JP2000266613A	2000-09-29
JPH0727635A	1995-01-31
JP3524728B2	2004-05-10

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INOUE, Manabu et al. (JP)
Manabu Inoue (JP)

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