Thermomechanical characterisation of a shape memory alloy for numerical modeling of its actuation response
Shape memory alloys (SMA) show the exceptional phenomena of shape memory effect, which is particularly interesting for an active functionalisation of lightweight structures and thus for the realisation of smart structures. To enable a simulation-based design and dimensioning process of such smart st...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ad9dbb |
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| _version_ | 1850101991251902464 |
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| author | Holger Böhm Andreas Schmidt Karl Kopelmann Andreas Hornig Chokri Cherif Maik Gude |
| author_facet | Holger Böhm Andreas Schmidt Karl Kopelmann Andreas Hornig Chokri Cherif Maik Gude |
| author_sort | Holger Böhm |
| collection | DOAJ |
| description | Shape memory alloys (SMA) show the exceptional phenomena of shape memory effect, which is particularly interesting for an active functionalisation of lightweight structures and thus for the realisation of smart structures. To enable a simulation-based design and dimensioning process of such smart structures, the application of sophisticated material models in combination with a comprehensive material understanding is necessary. In this work, the thermomechanical material behaviour of a Nickel-Titanium-based SMA wire material is first experimentally characterised via Differential Scanning Calorimetry technique and an extensive tensile testing campaign under specific temperature conditions. Then, a novel constitutive material model for SMA wire material is proposed to model the temperature-dependent SMA behaviour in terms of the resultant force due to thermal activation. On the basis of experimentally derived model parameters, a strategy is presented for calibrating non-physical model parameters. The results show that the chosen model can reproduce the thermally activated structural behavior of the SMA wire material under consideration of the pre-stretch with a high level of agreement with the experiments. The proposed parameter identification methodology enables the promising material model to be used for the first time at a structural level for the design of adaptive structures. |
| format | Article |
| id | doaj-art-e3b3f4a3e1bd4f4aa48bf5d1e9a368fa |
| institution | DOAJ |
| issn | 2053-1591 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-e3b3f4a3e1bd4f4aa48bf5d1e9a368fa2025-08-20T02:39:51ZengIOP PublishingMaterials Research Express2053-15912024-01-01111212570110.1088/2053-1591/ad9dbbThermomechanical characterisation of a shape memory alloy for numerical modeling of its actuation responseHolger Böhm0https://orcid.org/0000-0002-0212-7166Andreas Schmidt1Karl Kopelmann2https://orcid.org/0000-0001-7450-9641Andreas Hornig3https://orcid.org/0000-0003-2653-7546Chokri Cherif4Maik Gude5https://orcid.org/0000-0003-1370-064XInstitute of Lightweight Engineering and Polymer Technology, TUD Dresden University of Technology , Holbeinstraße 3, 01307 Dresden, GermanyInstitute of Lightweight Engineering and Polymer Technology, TUD Dresden University of Technology , Holbeinstraße 3, 01307 Dresden, GermanyInstitute of Textile Machinery and High Performance Material Technology, TUD Dresden University of Technology , Hohe Straße 6, 01062 Dresden, GermanyInstitute of Lightweight Engineering and Polymer Technology, TUD Dresden University of Technology , Holbeinstraße 3, 01307 Dresden, GermanyInstitute of Textile Machinery and High Performance Material Technology, TUD Dresden University of Technology , Hohe Straße 6, 01062 Dresden, GermanyInstitute of Lightweight Engineering and Polymer Technology, TUD Dresden University of Technology , Holbeinstraße 3, 01307 Dresden, GermanyShape memory alloys (SMA) show the exceptional phenomena of shape memory effect, which is particularly interesting for an active functionalisation of lightweight structures and thus for the realisation of smart structures. To enable a simulation-based design and dimensioning process of such smart structures, the application of sophisticated material models in combination with a comprehensive material understanding is necessary. In this work, the thermomechanical material behaviour of a Nickel-Titanium-based SMA wire material is first experimentally characterised via Differential Scanning Calorimetry technique and an extensive tensile testing campaign under specific temperature conditions. Then, a novel constitutive material model for SMA wire material is proposed to model the temperature-dependent SMA behaviour in terms of the resultant force due to thermal activation. On the basis of experimentally derived model parameters, a strategy is presented for calibrating non-physical model parameters. The results show that the chosen model can reproduce the thermally activated structural behavior of the SMA wire material under consideration of the pre-stretch with a high level of agreement with the experiments. The proposed parameter identification methodology enables the promising material model to be used for the first time at a structural level for the design of adaptive structures.https://doi.org/10.1088/2053-1591/ad9dbbsmart materialshape memory alloyshape memory effectfinite element analysis (FEA) |
| spellingShingle | Holger Böhm Andreas Schmidt Karl Kopelmann Andreas Hornig Chokri Cherif Maik Gude Thermomechanical characterisation of a shape memory alloy for numerical modeling of its actuation response Materials Research Express smart material shape memory alloy shape memory effect finite element analysis (FEA) |
| title | Thermomechanical characterisation of a shape memory alloy for numerical modeling of its actuation response |
| title_full | Thermomechanical characterisation of a shape memory alloy for numerical modeling of its actuation response |
| title_fullStr | Thermomechanical characterisation of a shape memory alloy for numerical modeling of its actuation response |
| title_full_unstemmed | Thermomechanical characterisation of a shape memory alloy for numerical modeling of its actuation response |
| title_short | Thermomechanical characterisation of a shape memory alloy for numerical modeling of its actuation response |
| title_sort | thermomechanical characterisation of a shape memory alloy for numerical modeling of its actuation response |
| topic | smart material shape memory alloy shape memory effect finite element analysis (FEA) |
| url | https://doi.org/10.1088/2053-1591/ad9dbb |
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