Apparatus for determining the fatigue condition of a structure

Details Apparatus for determining the fatigue condition of a structure Apparatus for determining the fatigue condition of a structure

1983-10-31

1986-07-08

Ciarlante, Anthony V.

Measuring and testing

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

In static structures

73787, 310348, G01M 500

Patent

active

045985928

ABSTRACT:
Electrical signals, representative of stress induced in a structure, are developed by a piezoelectric transducer (10) attached to the structure in response to stress changes in the structure caused by loads applied to the structure. The signals storage signals from the electrical signals and the storage are processed by a signal processing circuit (12) to develop signals are accumulated by a storage unit (14) to develop a fatigue condition indication of the cumulative effect of the loads applied to the structure.

REFERENCES:
patent: 3628377 (1971-12-01), Weiss
patent: 3713127 (1973-01-01), Keledy et al.
patent: 4010679 (1977-03-01), Dybel
patent: 4127788 (1978-11-01), Daugherty

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