Method of detecting the onset of cracking in articles during dyn

Details Method of detecting the onset of cracking in articles during dyn Method of detecting the onset of cracking in articles during dyn

1979-05-10

1981-08-18

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73577, G01N 336

Patent

active

042839564

ABSTRACT:
A method is disclosed for detecting the onset of cracking in an article subjected to dynamic loading. The article is subjected to a dynamically changing load, and additionally is loaded and vibrated at its natural frequency. The onset of a crack in the article is determined by noting a change in its natural frequency.

REFERENCES:
patent: 3228238 (1966-01-01), Jentet
patent: 3442120 (1969-05-01), Russenberger et al.

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