Device for monitoring the fatigue life of a structural member an

Details Device for monitoring the fatigue life of a structural member an Device for monitoring the fatigue life of a structural member an

1992-07-01

1994-06-14

Williams, Hezron E.

Measuring and testing

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

Indicating coating or sheet providing direct visual indication

73799, 73787, G01N 1908

Patent

active

053199820

ABSTRACT:
A device for monitoring the fatigue life of a structural member composed of a predetermined material, and a method of making same. The device is a substantially flat fuse composed of a material similar to the predetermined material and mountable on a structural member during use. The fuse has cut out portions which define fuse elements which also have reduced thicknesses to effect failure at different times in sequence because of fatigue and prior to the failure of the monitored structural member when the fuse and the monitored structural member are subjected to substantially the same stress history.

REFERENCES:
patent: 4164874 (1979-08-01), Cassat et al.
patent: 4590804 (1986-05-01), Brull

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