Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1986-08-26
1988-04-05
Myracle, Jerry W.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
G01N 320
Patent
active
047350938
ABSTRACT:
A method of and an apparatus for applying 3 or 4 point bending to a specimen of a material. The apparatus comprises bending members to contact the specimen, a drive system coupled to at least one of the bending members to cause relative vertical movement between the bending members to deflect the specimen, and a microprocessor interfaced with the drive system to control the operation of the drive system in accordance with a computer programm. The method is characterized by controlled monitoring of the actual experimental conditions applied to the specimen and varying of the operation of the drive system when the actual experimental conditions diverge from the required experimental conditions.
REFERENCES:
patent: 2479984 (1949-08-01), Stock
patent: 3500679 (1968-07-01), Smith
patent: 3808880 (1974-05-01), Berman et al.
patent: 4033181 (1977-07-01), Oeser
patent: 4314482 (1982-02-01), Krainski, Jr.
patent: 4574356 (1986-03-01), Schattschneider et al.
Boyd Stephen D.
Burchill Peter J.
Stacewicz Richard H.
Stewart Cameron J.
Thomas John D.
Commonwealth of Australia
Myracle Jerry W.
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