Apparatus for measuring tensile and compressive properties of so

Details Apparatus for measuring tensile and compressive properties of so Apparatus for measuring tensile and compressive properties of so

1991-01-22

1992-04-21

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Compressor-condenser-evaporator circuit

73818, 73826, F25B 1900

Patent

active

051056267

ABSTRACT:
An apparatus for evaluating the tensile and compressive properties of material samples at very low or cryogenic temperatures employs a stationary frame and a dewar mounted below the frame. A pair of coaxial cylindrical tubes extend downward towards the bottom of the dewar. A compressive or tensile load is generated hydraulically and is transmitted by the inner tube to the material sample. The material sample is located near the bottom of the dewar in a liquid refrigerant bath. The apparatus employs a displacement measuring device, such as a linear variable differential transformer, to measure the deformation of the material sample relative to the amount of compressive or tensile force applied to the sample.

REFERENCES:
patent: 4346754 (1982-08-01), Imig et al.
patent: 4696169 (1987-09-01), Niemann et al.
patent: 4781034 (1988-11-01), Nicol et al.

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