Method and apparatus for fatigue crack detection and propagation

Details Method and apparatus for fatigue crack detection and propagation Method and apparatus for fatigue crack detection and propagation

1990-06-25

1992-01-14

Myracle, Jerry W.

Measuring and testing

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

By loading of specimen

73812, 324693, G01N 1908

Patent

active

050799550

ABSTRACT:
A fatigue testing system subjects a test specimen to a rotary stress applied about an axis at one or both ends which is perpendicular to the axis of the test specimen. The stress applied may be selected from sinusoidal, random, impulse or a signal generated by the stresses applied to an actual in service specimen. A servo applies the stress to the test specimen through a coupler and the changes in the electrical resistance of a portion of the test specimen is sensed to detect the initiation and propagation of a stress failure.

REFERENCES:
patent: 2243413 (1941-05-01), Buckingham
patent: 2486567 (1944-12-01), Lazan
patent: 2531145 (1950-11-01), Marco et al.
patent: 2612774 (1952-10-01), Zener et al.
patent: 2729096 (1956-01-01), Rosenhotz et al.
patent: 3381526 (1968-05-01), Rastogi et al.
patent: 3563086 (1968-10-01), Reed
patent: 3680367 (1972-08-01), Krafft
patent: 3718028 (1973-02-01), Moser et al.
patent: 3803485 (1974-04-01), Crites et al.
patent: 3965729 (1976-06-01), King

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