Print Email Facebook Twitter Mechanical stretch influence on lifetime of dielectric elastomer films Title Mechanical stretch influence on lifetime of dielectric elastomer films Author Iannarelli, A. (TU Delft DC systems, Energy conversion & Storage) Ghaffarian Niasar, M. (TU Delft DC systems, Energy conversion & Storage) Contributor Bar-Cohen, Yoseph (editor) Date 2017-04-17 Abstract Film pre-stretching is a widely adopted solution to improve dielectric strength of the DEA systems. However, to date, long term reliability of this solution has not been investigated. In this work it is explored how the dielectric elastomer lifetime is affected by film pre-stretching. The dielectric loss of soft polydimethylsiloxane (PDMS) films is studied for different stretch ratios by measuring tanδ. Additionally, time-to-breakdown was measured at DC electric stress for different stretch ratios. For this purpose, accelerated life test (ALT) were performed. The results obtained are compared with non-pre-stretched samples. This study suggests that no additional dielectric losses are caused by film stretching up to 80% of original dimensions. Subject pre-stretchinglifetimedielectric losstime-to-breakdownPDMSreliability To reference this document use: http://resolver.tudelft.nl/uuid:1c6bff9b-dc33-4dd9-931a-afab4f412359 DOI https://doi.org/10.1117/12.2258601 Publisher SPIE, Bellingam, WA ISBN 9781510608115 Source Electroactive Polymer Actuators and Devices (EAPAD) 2017 Event Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring 2017, 2017-03-25 → 2017-03-29, Portland, OR, United States Series Proceedings of SPIE, 0277-786X, 10163 Part of collection Institutional Repository Document type conference paper Rights © 2017 A. Iannarelli, M. Ghaffarian Niasar Files PDF 16956505.pdf 612.9 KB Close viewer /islandora/object/uuid:1c6bff9b-dc33-4dd9-931a-afab4f412359/datastream/OBJ/view