Method of measuring crack propagation in opaque materials

Details Method of measuring crack propagation in opaque materials Method of measuring crack propagation in opaque materials

1995-01-12

1996-12-24

Williams, Hezron E.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

73571, G01N 2904

Patent

active

055875327

ABSTRACT:
A microscopy-thermal wave microscopy apparatus for measuring crack propagon resistance based on the lateral crack system induced by forming a hardness indentation in an opaque material the resistance and crack extent providing a quantitative measure of the spalling propensity of the opaque material.

REFERENCES:
patent: 4028932 (1977-06-01), Rosencwaig
patent: 4267732 (1981-05-01), Quate
patent: 4543486 (1985-09-01), Rose
patent: 4562736 (1986-01-01), Iwasaki

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