Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1989-07-28
1990-05-22
Raevis, Robert
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
G01N 300
Patent
active
049266942
ABSTRACT:
A delamination test apparatus and method uses a single beam to simultaneously apply opening and shear stresses to a test specimen. A fulcrum extending downwardly from the beam produces shear stress in the specimen by downward movement, and opening stress by pivotal upward movement of the beam, which results by virtue of the fact that the applied load is on one side of the fulcrum while the test specimen is connected to the beam on the opposite side of the fulcrum.
REFERENCES:
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patent: 3026721 (1962-03-01), Ensor et al.
patent: 3194063 (1965-07-01), McKean
patent: 3354704 (1967-11-01), Gloor
patent: 3580065 (1971-05-01), Strittmater
patent: 4566335 (1986-01-01), Singhal
patent: 4589288 (1986-05-01), Porter et al.
Crews, Jr. John H.
Reeder James R.
Adams Harold W.
Glenn Charles E. B.
Manning John R.
Raevis Robert
The United States of America as represented by the United States
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