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18 January 2019 Glass viscoelasticity determination and analysis based on TMA compression creep
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Proceedings Volume 10839, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment; 108391X (2019) https://doi.org/10.1117/12.2514788
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China
Abstract
A compression creep testing scheme based on TMA equipment was designed in order to obtain viscoelastic properties of glasses. Different with traditional creep tests, in TMA creep testing process, the creep displacement is only a few microns, and the total axial strain could be controlled within a few thousandths. Therefore, the cylinder glass specimen section could be considered as unchanged, the compressive stress can be considered as constant, which will guarantee testing data with a higher precision. Relaxation moduli calculated form creep testing were approximated by generalized Maxwell models, and the viscoelastic datas were verified by finite element analysis.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yingying Zhang, Shaohui Yin, Sheng Zhang, and Hong Luo "Glass viscoelasticity determination and analysis based on TMA compression creep", Proc. SPIE 10839, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment, 108391X (18 January 2019); https://doi.org/10.1117/12.2514788
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