Journal of the Japanese Society for Experimental Mechanics
Print ISSN : 1346-4930
ISSN-L : 1346-4930
Original Papers
Evaluation of Thermo-Viscoelastic Property of Glass by Dynamic Mechanical Analysis Using a Thermomechanical Analyzer
Hiroaki ITONobuya HIMENOHideo CHOMasahiro ARAI
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2017 Volume 17 Issue 2 Pages 109-116

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Abstract

   In this study, a dynamic mechanical analysis (DMA) using a thermomechanical analyzer was applied to determine the thermo-viscoelastic properties (shift factors and a master curve) of a borosilicate glass (IWAKITE-32) under various frequencies and temperatures. It was confirmed that the storage elastic moduli decreased with increasing temperature in 575℃ to 770℃ and decreasing frequency in 0.001 Hz to 0.1 Hz. The shift factors and master curve in the glass sample were derived using datasets of the storage elastic moduli. The shift factors for the glass obtained by DMA test agreed well with those by a static creep test. However, the master curve of relaxation modulus estimated by each test was different. That is, stress relaxation behavior of glass indicates nonlinearity, and it was suggested that the master curves of relaxation moduli are different depending on measurement methods.

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© 2017 The Japanese Society for Experimental Mechanics
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