Suitability of Different Analytical Derivations of Electrically Induced Stress States in Planar and Cylindrical Dielectric Elastomer Actuators
Dielectric elastomers (DE) belong to a very performant and efficient class of functional materials for actuators, while being compliant, low-weight and silent, they offer high energy efficiencies and large deformations under an applied electric field. In this work, a comparison of different approach...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/4/1321 |
| _version_ | 1797478462436409344 |
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| author | Sascha Pfeil Gerald Gerlach |
| author_facet | Sascha Pfeil Gerald Gerlach |
| author_sort | Sascha Pfeil |
| collection | DOAJ |
| description | Dielectric elastomers (DE) belong to a very performant and efficient class of functional materials for actuators, while being compliant, low-weight and silent, they offer high energy efficiencies and large deformations under an applied electric field. In this work, a comparison of different approaches to derive expressions for the electrically induced stress states in dielectric materials is given. In particular, the focus is on three different ways to analytically describe stress states in planar actuator setups and to show how they are connected to each other regarding their resulting deformations. This is the basis to evaluate the suitability of these approaches for cylindrical actuator geometries together with exemplary calculations for concrete use cases. As an outcome, conclusions on the suitability of the different approaches for certain actuator setups are drawn. In particular cylindrical actuator geometries are taken into account and a recommendation on which approach is useful to describe a certain actuator effect is given. |
| first_indexed | 2024-03-09T21:32:14Z |
| format | Article |
| id | doaj.art-385b43161c624c5eb991d8c4dd250979 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T21:32:14Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-385b43161c624c5eb991d8c4dd2509792023-11-23T20:51:25ZengMDPI AGMaterials1996-19442022-02-01154132110.3390/ma15041321Suitability of Different Analytical Derivations of Electrically Induced Stress States in Planar and Cylindrical Dielectric Elastomer ActuatorsSascha Pfeil0Gerald Gerlach1Institute of Solid-State Electronics, Faculty of Electrical and Computer Engineering, Technische Universität Dresden, 01069 Dresden, GermanyInstitute of Solid-State Electronics, Faculty of Electrical and Computer Engineering, Technische Universität Dresden, 01069 Dresden, GermanyDielectric elastomers (DE) belong to a very performant and efficient class of functional materials for actuators, while being compliant, low-weight and silent, they offer high energy efficiencies and large deformations under an applied electric field. In this work, a comparison of different approaches to derive expressions for the electrically induced stress states in dielectric materials is given. In particular, the focus is on three different ways to analytically describe stress states in planar actuator setups and to show how they are connected to each other regarding their resulting deformations. This is the basis to evaluate the suitability of these approaches for cylindrical actuator geometries together with exemplary calculations for concrete use cases. As an outcome, conclusions on the suitability of the different approaches for certain actuator setups are drawn. In particular cylindrical actuator geometries are taken into account and a recommendation on which approach is useful to describe a certain actuator effect is given.https://www.mdpi.com/1996-1944/15/4/1321dielectric elastomer actuatorssoft roboticselectrically induced stress statesanalytical stress derivationselectro-mechanical couplingcylindrical DEA |
| spellingShingle | Sascha Pfeil Gerald Gerlach Suitability of Different Analytical Derivations of Electrically Induced Stress States in Planar and Cylindrical Dielectric Elastomer Actuators Materials dielectric elastomer actuators soft robotics electrically induced stress states analytical stress derivations electro-mechanical coupling cylindrical DEA |
| title | Suitability of Different Analytical Derivations of Electrically Induced Stress States in Planar and Cylindrical Dielectric Elastomer Actuators |
| title_full | Suitability of Different Analytical Derivations of Electrically Induced Stress States in Planar and Cylindrical Dielectric Elastomer Actuators |
| title_fullStr | Suitability of Different Analytical Derivations of Electrically Induced Stress States in Planar and Cylindrical Dielectric Elastomer Actuators |
| title_full_unstemmed | Suitability of Different Analytical Derivations of Electrically Induced Stress States in Planar and Cylindrical Dielectric Elastomer Actuators |
| title_short | Suitability of Different Analytical Derivations of Electrically Induced Stress States in Planar and Cylindrical Dielectric Elastomer Actuators |
| title_sort | suitability of different analytical derivations of electrically induced stress states in planar and cylindrical dielectric elastomer actuators |
| topic | dielectric elastomer actuators soft robotics electrically induced stress states analytical stress derivations electro-mechanical coupling cylindrical DEA |
| url | https://www.mdpi.com/1996-1944/15/4/1321 |
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