Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1983-01-10
1984-07-10
Myracle, Jerry W.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
73819, G01N 320
Patent
active
044585381
ABSTRACT:
An apparatus and method of measuring edgewise compressive deformation in sheet material comprises providing a specimen beam having an inner curved layer of the sheet material to be tested, an outer curved strip spaced radially outwardly of the sheet material, an elastomeric spacer between the sheet and strip, and blocks fixing the opposite ends of the sheet material to the opposite ends of the strip. The spacer is fixed to the backing strip and engaged firmly on the outer radial surface of the sheet material. The ends of the curved specimen beam receive a pure torque which causes compression of the sheet material which can be measured. The sheet material is supported so that it does not buckle with the torque being applied by simple weights connected to rotors which in turn are engaged with the opposite ends of the specimen beam.
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Gunderson Dennis E.
Setterholm Vance C.
McConnell David G.
Myracle Jerry W.
Silverstein M. Howard
The United States of America as represented by the Secretary of
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