Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains
Dielectric elastomers, known for their ability to undergo large deformations exceeding 100%, are widely used as actuators in adaptive structures and soft robotics. Within the current contribution, we present a continuum material model that captures the incompressibility and viscous behavior of these...
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2024
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| Online Access: | https://hdl.handle.net/11073/25819 |
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| _version_ | 1864513444529569792 |
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| author | Kunzemann, Mario |
| author2 | Pechstein, Astrid S. Humer, Alexander Krommer, Michael |
| author2_role | author author author |
| author_facet | Kunzemann, Mario Pechstein, Astrid S. Humer, Alexander Krommer, Michael |
| author_role | author |
| dc.creator.none.fl_str_mv | Kunzemann, Mario Pechstein, Astrid S. Humer, Alexander Krommer, Michael |
| dc.date.none.fl_str_mv | 2024-11 2025-01-29T08:19:12Z 2025-01-29T08:19:12Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Kunzemann, M., Pechsteina, A. S., Humer, A., & Krommer, M. (2025, January 23). Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains. https://doi.org/10.5281/zenodo.14725639 https://hdl.handle.net/11073/25819 10.5281/zenodo.14725639 |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | American University of Sharjah |
| dc.relation.none.fl_str_mv | 8th International Conference on Smart Materials & Nanotechnology in Engineering (SMN2024) https://doi.org/10.5281/zenodo.14725639 |
| dc.rights.none.fl_str_mv | Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| dc.subject.none.fl_str_mv | Electromechanical coupling Electro-active polymers Viscoelasticity |
| dc.title.none.fl_str_mv | Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Dielectric elastomers, known for their ability to undergo large deformations exceeding 100%, are widely used as actuators in adaptive structures and soft robotics. Within the current contribution, we present a continuum material model that captures the incompressibility and viscous behavior of these polymers under finite s train and e lectric a ctuation. To address l arge deformations, we use a multiplicative decomposition of the deformation gradient to separate elastic and viscous effects. The elastic response is represented by a Yeoh potential, which is well suited to describe the material behavior under large strains. The evolution of internal strains is modeled using a dissipation function. Electric field a nd d ielectric d isplacement a re modeled i n s patial c onfiguration, le ading to an electromechanically coupled problem. We propose a mixed finite e lement f ormulation w ithin a variational framework based on the above thermodynamic principles. We introduce a novel approach using volume-preserving tensor-valued elements for internal strains, where we make use of matrix exponential functions to achieve incompressiblity exactly. As an example, we consider an experimental setup of a three-dimensional circular actuator. We provide material parameters for VHB4910 for the proposed model, and compare our results to experimental data from a different work. |
| format | article |
| id | aus_06898db957998ef4ae4f7abce436aa71 |
| identifier_str_mv | Kunzemann, M., Pechsteina, A. S., Humer, A., & Krommer, M. (2025, January 23). Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains. https://doi.org/10.5281/zenodo.14725639 10.5281/zenodo.14725639 |
| language_invalid_str_mv | en |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/25819 |
| publishDate | 2024 |
| publisher.none.fl_str_mv | American University of Sharjah |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| spelling | Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite StrainsKunzemann, MarioPechstein, Astrid S.Humer, AlexanderKrommer, MichaelElectromechanical couplingElectro-active polymersViscoelasticityDielectric elastomers, known for their ability to undergo large deformations exceeding 100%, are widely used as actuators in adaptive structures and soft robotics. Within the current contribution, we present a continuum material model that captures the incompressibility and viscous behavior of these polymers under finite s train and e lectric a ctuation. To address l arge deformations, we use a multiplicative decomposition of the deformation gradient to separate elastic and viscous effects. The elastic response is represented by a Yeoh potential, which is well suited to describe the material behavior under large strains. The evolution of internal strains is modeled using a dissipation function. Electric field a nd d ielectric d isplacement a re modeled i n s patial c onfiguration, le ading to an electromechanically coupled problem. We propose a mixed finite e lement f ormulation w ithin a variational framework based on the above thermodynamic principles. We introduce a novel approach using volume-preserving tensor-valued elements for internal strains, where we make use of matrix exponential functions to achieve incompressiblity exactly. As an example, we consider an experimental setup of a three-dimensional circular actuator. We provide material parameters for VHB4910 for the proposed model, and compare our results to experimental data from a different work.American University of Sharjah2025-01-29T08:19:12Z2025-01-29T08:19:12Z2024-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfKunzemann, M., Pechsteina, A. S., Humer, A., & Krommer, M. (2025, January 23). Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains. https://doi.org/10.5281/zenodo.14725639https://hdl.handle.net/11073/2581910.5281/zenodo.14725639en8th International Conference on Smart Materials & Nanotechnology in Engineering (SMN2024)https://doi.org/10.5281/zenodo.14725639Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/oai:repository.aus.edu:11073/258192025-01-30T10:36:30Z |
| spellingShingle | Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains Kunzemann, Mario Electromechanical coupling Electro-active polymers Viscoelasticity |
| status_str | publishedVersion |
| title | Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains |
| title_full | Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains |
| title_fullStr | Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains |
| title_full_unstemmed | Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains |
| title_short | Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains |
| title_sort | Continuum Modeling and Finite Element Simulation of Incompressible Dielectric Viscoelastic Actuators at Finite Strains |
| topic | Electromechanical coupling Electro-active polymers Viscoelasticity |
| url | https://hdl.handle.net/11073/25819 |