Self-contained constant stress/constant strain test fixture
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United States of America Patent
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Aug 25, 1998
Grant Date -
N/A
app pub date -
Feb 12, 1997
filing date -
Feb 12, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A tensile test fixture for applying constant tensile forces to a tensile test specimen comprises two mounting grips, each mounted to one of two lever arms in a pivoted lever arm frame structure. One end of each lever arm is pivotally attached to a compression column while the other end of each lever arm is attached to one end of a force-applying assembly. The mounting grips are pivotally attached to their respective lever arms between the compression column and the force-applying assembly and are designed to hold opposite ends of a tensile test specimen. The force-applying assembly comprises stress and strain modules that are interchangeably installable into the force-applying assembly to selectively subject tensile test specimens to constant strain and constant stress.
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