The time and temperature dependences of the stress recovery of Ecoflex polymer - Université Grenoble Alpes
Article Dans Une Revue International Journal of Non-Linear Mechanics Année : 2023

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

Résumé

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.
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Dates et versions

hal-04231118 , version 1 (10-10-2023)

Identifiants

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Zisheng Liao, Jie Yang, Mokarram Hossain, Grégory Chagnon, Xiaohu Yao. The time and temperature dependences of the stress recovery of Ecoflex polymer. International Journal of Non-Linear Mechanics, 2023, 149, pp.104338. ⟨10.1016/j.ijnonlinmec.2022.104338⟩. ⟨hal-04231118⟩
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