Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1994-10-12
1996-12-17
Chilcot, Richard
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
73799, 73816, 73853, 73856, G01N 310
Patent
active
055855709
ABSTRACT:
A rising step-load test apparatus for subjecting the notched region of a fracture specimen to tension by applying four-point bending to the specimen, and having an adaptor that can fit into the test apparatus in four-point bending and convert the bending load to an axial tensile load on a second specimen for which the adaptor serves as a fixture. The test apparatus applies four-point bending to either the fracture specimen or the adaptor through two oppositely situated simple supports at one end of the fracture specimen or adaptor and two other oppositely situated simple supports at the other end of the fracture specimen or adaptor. The adaptor employs two pivotally attached linking members attached to the two ends of the second specimen to transfer a pure axial tension to the second specimen for testing in axial-tension mode. A chemical bath is provided for an accelerated test of hydrogen embrittlement.
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Chilcot Richard
LRA Laboratories, Inc.
McCall Eric S.
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