Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Deformation or change in stress after fracture – cutting – or...
Patent
1997-02-07
1999-02-09
Biegel, Ronald L.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Deformation or change in stress after fracture, cutting, or...
G01N 1906
Patent
active
058697683
ABSTRACT:
A material testing device 1 is constituted by a test piece 2, the mechanical properties of which are to be measured and which is connected to the test piece 2, a pair of torsion bars 4 operating as an elastic support portion of the rotary lever 3 and a frame 5 functioning as a rigid support portion of the test piece 2 and the torsion bars 4 and forming an outside frame, the mechanical properties of the test piece 2 are measured by applying an uniaxial tensile force on the test piece 2 in a direction of arrow marks A--A by applying a vertical load W on one end of the rotary lever 3. The test piece 2 is integrally formed with the frame 5 and the rotary lever 3 and therefore, the mechanical property values can easily be measured with no direct contact to the test piece 2.
REFERENCES:
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patent: 4522072 (1985-06-01), Sukouff et al.
patent: 4823607 (1989-04-01), Howe et al.
patent: 5209119 (1993-05-01), Polla et al.
patent: 5526697 (1996-06-01), Tada et al.
Sato Kazuo
Shikida Mitsuhiro
Biegel Ronald L.
Sato Kazuo
Seiko Instruments Inc.
Shikida Mitsuhiro
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