Dynamic high speed tensile tester
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 16, 2002
Grant Date -
N/A
app pub date -
Jun 14, 2000
filing date -
Jun 14, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system is provided for determining the tensile characteristics of a sample under dynamic conditions. The system includes an apparatus adapted to accelerate the sample to a desired test velocity and maintain the test velocity through a predetermined test run, and a microprocessor for controlling the apparatus, data collection and data evaluation. The apparatus is formed with two movable clamping jaws for engaging the sample and sensors for measuring characteristics necessary to determine the stress-strain characteristics of the sample. During the course of the test, a sample is accelerated to a predetermined test velocity and one end of the sample is caused to be instantaneously fixed. The other end of the sample is then translated away from the fixed end at the test velocity. A closed loop between the microprocessor, a linear encoder measuring velocity, and a linear motor can be formed to accordingly adjust and maintain the desired test velocity.
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