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The time and temperature dependences of the stress recovery of Ecoflex polymer

Zisheng Liao, Jie Yang, Mokarram Hossain Orcid Logo, Gregory Chagnon, Xiaohu Yao

International Journal of Non-Linear Mechanics, Volume: 149, Start page: 104338

Swansea University Author: Mokarram Hossain Orcid Logo

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DOI (Published version): 10.1016/j.ijnonlinmec.2022.104338

Abstract

Ecoflex silicone rubbers, served as the polymeric components of flexible electronic devices, actuators, energy converters, etc., are subjected to repetitive loadings during their service lives. The resulting stress softening and stress recovery phenomena can impose complicated impacts on their actua...

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Published in: International Journal of Non-Linear Mechanics
ISSN: 0020-7462
Published: Elsevier BV 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa62243
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Abstract: Ecoflex silicone rubbers, served as the polymeric components of flexible electronic devices, actuators, energy converters, etc., are subjected to repetitive loadings during their service lives. The resulting stress softening and stress recovery phenomena can impose complicated impacts on their actual performances. Therefore, the importance of a better understanding of these phenomena needs to be stressed. In this contribution, we focus on the stress recovery behaviour of the Ecoflex silicone rubber in consideration of time and temperature dependences. Our findings show the time–temperature equivalence of the stress recovery behaviour. Based on the experimental study, a constitutive model is developed at finite strains using the Time–Temperature Superposition (TTS) principle to capture both the time and temperature dependences of the stress recovery behaviour of Ecoflex.
Keywords: Ecoflex silicone rubber; Stress recovery; Annealing; Time–Temperature Superposition
College: Faculty of Science and Engineering
Funders: This work is partially supported by the National Science Fund for Distinguished Young Scholar (No. 11925203), the National Natural Science Foundation of China (No. 1672110), and the Open Project Program of State Key Laboratory of Traction Power under Grant (No. TPL2003). M.H. also acknowledges the support by EPSRC, United Kingdom through the Supergen ORE Hub (EP/S000747/1).
Start Page: 104338

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