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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 973 records · Page 54

Plane strain fracture toughness.

Plane strain fracture toughness determined for crack notched bend specimens using standard test procedure for specific metallic material property

Srawley, J. E.↗

Noncontacting-optical-strain device

Noncontacting-strain-measuring gauge and extensometer remotely measures the mechanical displacement along the entire length of a test specimen. Measurement is accomplished by continuous scanning of a reflected light from reflective bench markings or stripes previously affixed to the specimen.

Silver, R. H.↗

Strain gage load measuring device - A concept

Instrumenting tape members of textile parachutes to determine load capability is accomplished by mounting strain-gage instrumented metal plates to the tape by stiff rubber pads. The pads permit gradual transfer of the load from the tape to the plates without stress concentrations in the tape.

Mickey, F. E.↗