Fatigue cycle sensor and method

Details Fatigue cycle sensor and method Fatigue cycle sensor and method

1980-03-03

1982-03-02

Ruehl, Charles A.

Measuring and testing

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

Stress or strain history of a specimen without application...

73167, 73652, 116203, 188374, G01D 104

Patent

active

043173730

ABSTRACT:
A fatigue cycle sensor can integrate force with respect to time. The sensor has a body with a bore. A plunger is mounted in the bore for relative motion therethrough in response to force applied behind the plunger. The plunger is sized for an interference fit in the bore. This interference fit results in deformation in response to relative motion between the plunger and body. The foregoing sensor has many applications including estimating fatigue in weapons.

REFERENCES:
patent: 2454793 (1948-11-01), Grogan et al.
patent: 3066540 (1962-12-01), Severance
patent: 3181821 (1965-05-01), Eddins
patent: 3263489 (1966-08-01), Schimmel et al.
patent: 3398812 (1968-08-01), Peterson
patent: 3757900 (1973-09-01), Gischlar
patent: 3979949 (1976-09-01), Smith

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