On the failure modes and maximum stretch of circular dielectric elastomer actuators
Dielectric elastomer actuators have been widely studied theoretically and experimentally thanks to its superior attributes such as large deformation. The actuator failure has long been an issue placing barriers to large deformation in practical applications. In this paper, we investigate the various...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/abbe42 |
| _version_ | 1827869385052651520 |
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| author | Zezhou Li Aifen Tian Dongsheng Zhang Yuzhe Wang Henry Y K Lau |
| author_facet | Zezhou Li Aifen Tian Dongsheng Zhang Yuzhe Wang Henry Y K Lau |
| author_sort | Zezhou Li |
| collection | DOAJ |
| description | Dielectric elastomer actuators have been widely studied theoretically and experimentally thanks to its superior attributes such as large deformation. The actuator failure has long been an issue placing barriers to large deformation in practical applications. In this paper, we investigate the various failure modes and the maximum stretch of the circular dielectric elastomer actuator. An analytical model depicting the actuation mechanism of the dielectric elastomer actuator is proposed to help analyze the failure onset. Several types of normally observed failure modes, i.e. electromechanical instability, loss of tension, and electrical breakdown, are analyzed theoretically based on the proposed model. A 3D figure that interprets the relationship of the corresponding factors and the possible failure modes are proposed as well, by which we could know the possible failure onset, as well as the associated maximum stretch under specific conditions. Experiments are carried out and the results are in accordance with the prediction by the proposed 3D figure. |
| first_indexed | 2024-03-12T15:44:38Z |
| format | Article |
| id | doaj.art-ff9d426aaca3461596111455b123ae87 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:44:38Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-ff9d426aaca3461596111455b123ae872023-08-09T15:51:16ZengIOP PublishingMaterials Research Express2053-15912020-01-0171010570110.1088/2053-1591/abbe42On the failure modes and maximum stretch of circular dielectric elastomer actuatorsZezhou Li0https://orcid.org/0000-0002-1363-1771Aifen Tian1Dongsheng Zhang2Yuzhe Wang3Henry Y K Lau4Industrial and Manufacturing Systems Engineering, the University of Hongkong , Hongkong 999077, People’s Republic of ChinaSchool of Materials Science and Engineering, Xi’an University of Science and Technology , Xi’an 710054, People’s Republic of ChinaSchool of Mechanical Engineering, Xi’an Jiaotong University , Xi’an 710049, People’s Republic of ChinaDepartment of Mechanical Engineering, National University of Singapore , 9 Engineering Drive 1, 117575, SingaporeIndustrial and Manufacturing Systems Engineering, the University of Hongkong , Hongkong 999077, People’s Republic of ChinaDielectric elastomer actuators have been widely studied theoretically and experimentally thanks to its superior attributes such as large deformation. The actuator failure has long been an issue placing barriers to large deformation in practical applications. In this paper, we investigate the various failure modes and the maximum stretch of the circular dielectric elastomer actuator. An analytical model depicting the actuation mechanism of the dielectric elastomer actuator is proposed to help analyze the failure onset. Several types of normally observed failure modes, i.e. electromechanical instability, loss of tension, and electrical breakdown, are analyzed theoretically based on the proposed model. A 3D figure that interprets the relationship of the corresponding factors and the possible failure modes are proposed as well, by which we could know the possible failure onset, as well as the associated maximum stretch under specific conditions. Experiments are carried out and the results are in accordance with the prediction by the proposed 3D figure.https://doi.org/10.1088/2053-1591/abbe42dielectric elastomer actuatorselectromechanical instabilityelectrical breakdownanalytical model |
| spellingShingle | Zezhou Li Aifen Tian Dongsheng Zhang Yuzhe Wang Henry Y K Lau On the failure modes and maximum stretch of circular dielectric elastomer actuators Materials Research Express dielectric elastomer actuators electromechanical instability electrical breakdown analytical model |
| title | On the failure modes and maximum stretch of circular dielectric elastomer actuators |
| title_full | On the failure modes and maximum stretch of circular dielectric elastomer actuators |
| title_fullStr | On the failure modes and maximum stretch of circular dielectric elastomer actuators |
| title_full_unstemmed | On the failure modes and maximum stretch of circular dielectric elastomer actuators |
| title_short | On the failure modes and maximum stretch of circular dielectric elastomer actuators |
| title_sort | on the failure modes and maximum stretch of circular dielectric elastomer actuators |
| topic | dielectric elastomer actuators electromechanical instability electrical breakdown analytical model |
| url | https://doi.org/10.1088/2053-1591/abbe42 |
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