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Parameters influencing fatigue life prediction of dielectric elastomer generators

Abstract : For energy scavenging applications, estimating fatigue life of dielectric elastomer is as crucial as computing the amount of scavenged energy. Crack growth approach, well known in rubber industry, is a fast methodology to estimate fatigue life. We adapt this methodology to dielectric silicone elastomers (Elastosil 2030) and we focus in particular on the factors influencing this estimation such as sample geometry, tearing energy, power law. We underline that the variation in tearing energy estimation induces a small dispersion on the fatigue life estimation whereas power law identification is the crucial and critical parameter. Finally, we define an index of performance based on fatigue life and scavenged energy density, and we compare two materials (acrylic 3MVHB4910 and silicone Elastosil 2030).
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Submitted on : Thursday, July 21, 2022 - 6:57:26 AM
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C. Jean-Mistral, G. Jacquet-Richardet, A. Sylvestre. Parameters influencing fatigue life prediction of dielectric elastomer generators. Polymer Testing, 2020, 81, pp.106198. ⟨10.1016/j.polymertesting.2019.106198⟩. ⟨hal-03260262⟩



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