Hand held, direct reading, fully mechanical fracture loading dev

Details Hand held, direct reading, fully mechanical fracture loading dev Hand held, direct reading, fully mechanical fracture loading dev

1983-02-02

1984-11-13

Myracle, Jerry W.

Measuring and testing

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

By loading of specimen

G01N 1908

Patent

active

044818262

ABSTRACT:
Expandable jaws comprise lever arms pivoted together at their base and forming a bifurcated Y-shaped assembly which acts by force application to fracture a specimen. The force is applied through and measured by deflection of a force gauge U-spring having one side fixed to one of the lever arms remote from the specimen and the other cable connected via a threaded shaft and knob to the other lever arm. A dial reads directly the force required to effect fracture toughness, fatigue crack, growth resistance or stress corrosion crack growth resistance of slotted short rod/bar specimens.

REFERENCES:
patent: 1557341 (1925-10-01), Scalbom
patent: 4066082 (1978-01-01), Arcan et al.
patent: 4198870 (1980-04-01), Barker et al.

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