Fixture for holding a bending test specimen

Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen

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Details

73856, G01N 320

Patent

active

047304987

ABSTRACT:
A test fixture for use in measuring the forces required to bend a test specimen throughout a range of temperatures includes clamps for gripping the ends of the test specimen while bending forces are applied intermediate the ends of the specimen, the clamps being carried by carriages movable in directions aligned with the test specimen and biased away from one another by constant force springs so that movement of the ends of the test specimen is permitted in response to temperature changes in the test specimen, against the constant bias of the constant force springs, thereby maintaining the test specimen in constant tension during the measurement of bending forces despite the changes in temperature.

REFERENCES:
patent: 3937072 (1976-02-01), Huydts et al.

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