Analysis of Safe and Failure Mode Regimes of Dielectric Elastomer Actuators
Dielectric elastomer actuators (DEAs) are promising for bionic and robotic applications. Reliability requirements in such applications necessitate better knowledge of the safe operation regimes and possible failure modes of DEAs. Elastomers consist of a network of entangled and cross-linked polymer chains, able to sustain spatially varying stress and strain fields, accompanied by stored elastic energy. Here we introduce a rigorous thermodynamic description of DEAs, based on a statistical mechanical model to gain insight for material development and optimization. We investigate multistability effects in the phase diagrams of elastomer actuators and combine our model with capacitive extensometry experiments.
| Author(s): | Martin Kaltenbrunner and Christoph Keplinger and Nikita Arnold and Siegfried Bauer |
| Book Title: | Proceedings of the IEEE SENSORS 2008 Conference |
| Pages: | 156-159 |
| Year: | 2008 |
| Month: | October |
| Bibtex Type: | Conference Paper (inproceedings) |
| Address: | Lecce, Italy |
| DOI: | 10.1109/ICSENS.2008.4716407 |
| State: | Published |
| Electronic Archiving: | grant_archive |
BibTex
@inproceedings{Keplinger08-SENS-Analysis,
title = {Analysis of Safe and Failure Mode Regimes of Dielectric Elastomer Actuators},
booktitle = {Proceedings of the IEEE SENSORS 2008 Conference},
abstract = {Dielectric elastomer actuators (DEAs) are promising
for bionic and robotic applications. Reliability requirements in
such applications necessitate better knowledge of the safe
operation regimes and possible failure modes of DEAs.
Elastomers consist of a network of entangled and cross-linked
polymer chains, able to sustain spatially varying stress and
strain fields, accompanied by stored elastic energy. Here we
introduce a rigorous thermodynamic description of DEAs,
based on a statistical mechanical model to gain insight for
material development and optimization. We investigate
multistability effects in the phase diagrams of elastomer
actuators and combine our model with capacitive extensometry
experiments. },
pages = {156-159},
address = {Lecce, Italy},
month = oct,
year = {2008},
slug = {keplinger08-sens-analysis},
author = {Kaltenbrunner, Martin and Keplinger, Christoph and Arnold, Nikita and Bauer, Siegfried},
month_numeric = {10}
}