NASA NTRS · 19870000134
Measuring Poisson Ratios at Low Temperatures
Abstract
Simple extensometer ring measures bulges of specimens in compression. New method of measuring Poisson's ratio used on brittle ceramic materials at cryogenic temperatures. Extensometer ring encircles cylindrical specimen. Four strain gauges connected in fully active Wheatstone bridge self-temperature-compensating. Used at temperatures as low as liquid helium.
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Boozon, R. S., Shepic, J. A.. 1987-03-01. Measuring Poisson Ratios at Low Temperatures. https://ntrs.nasa.gov/citations/19870000134
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