Abstract
This paper describes a torsional creep apparatus for the determination of the creep compliance in shear as a function of time. The instrument is suitable for the measurement of compliances below 5·10−8 m2/N, in the time range between 1 and 105 seconds. Within five minutes and with an accuracy of 1 ‡C, the temperature of the specimen can be adjusted to any value between −175 and –200 ‡C. From the torsional creep measurements can be calculated the dynamic shear modulus and the corresponding damping. The lowest damping, determined in this way, is several times 10−3.
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