Design, Testing, and Sensitivity Analysis of a Torsional Cyclic Test Adapter
In this article, a torsional adapter is designed and evaluated through the comparison of analytical, numerical, and experimental tools. The adapter converts a conventional tension–compression test machine for cyclic loading to a modified application of both force-controlled and displacement-controll...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
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| Series: | Machines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-1702/12/2/90 |
| _version_ | 1797297710752071680 |
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| author | Klara Gaber Andrej Škrlec Jernej Klemenc Domen Šeruga |
| author_facet | Klara Gaber Andrej Škrlec Jernej Klemenc Domen Šeruga |
| author_sort | Klara Gaber |
| collection | DOAJ |
| description | In this article, a torsional adapter is designed and evaluated through the comparison of analytical, numerical, and experimental tools. The adapter converts a conventional tension–compression test machine for cyclic loading to a modified application of both force-controlled and displacement-controlled torsional loading. The mechanism ensures a uniform distribution of loading application on both sides of the specimen. The determination of the durability curve can therefore be consistently carried out by acknowledging the geometric relation between the displacement of the test rig and the strain on the specimen. However, friction and clearance in the mechanism joints can cause energy dissipation; therefore, a detailed evaluation of this effect is mandatory before the use of the adapter. Here, it is shown that, using the current version of the adapter, the energy dissipation during torsional testing can be measured and later successfully considered during the determination of the torsional cyclic curve. Future improvements of the adapter will involve the reduction of the friction between the components of the mechanism. |
| first_indexed | 2024-03-07T22:24:18Z |
| format | Article |
| id | doaj.art-f99b855812174840bdcc43d63a71bc63 |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-07T22:24:18Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-f99b855812174840bdcc43d63a71bc632024-02-23T15:24:59ZengMDPI AGMachines2075-17022024-01-011229010.3390/machines12020090Design, Testing, and Sensitivity Analysis of a Torsional Cyclic Test AdapterKlara Gaber0Andrej Škrlec1Jernej Klemenc2Domen Šeruga3Faculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, 1000 Ljubljana, SloveniaFaculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, 1000 Ljubljana, SloveniaFaculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, 1000 Ljubljana, SloveniaFaculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, 1000 Ljubljana, SloveniaIn this article, a torsional adapter is designed and evaluated through the comparison of analytical, numerical, and experimental tools. The adapter converts a conventional tension–compression test machine for cyclic loading to a modified application of both force-controlled and displacement-controlled torsional loading. The mechanism ensures a uniform distribution of loading application on both sides of the specimen. The determination of the durability curve can therefore be consistently carried out by acknowledging the geometric relation between the displacement of the test rig and the strain on the specimen. However, friction and clearance in the mechanism joints can cause energy dissipation; therefore, a detailed evaluation of this effect is mandatory before the use of the adapter. Here, it is shown that, using the current version of the adapter, the energy dissipation during torsional testing can be measured and later successfully considered during the determination of the torsional cyclic curve. Future improvements of the adapter will involve the reduction of the friction between the components of the mechanism.https://www.mdpi.com/2075-1702/12/2/90torsionmechanismcyclic loadingfrictionplasticity |
| spellingShingle | Klara Gaber Andrej Škrlec Jernej Klemenc Domen Šeruga Design, Testing, and Sensitivity Analysis of a Torsional Cyclic Test Adapter Machines torsion mechanism cyclic loading friction plasticity |
| title | Design, Testing, and Sensitivity Analysis of a Torsional Cyclic Test Adapter |
| title_full | Design, Testing, and Sensitivity Analysis of a Torsional Cyclic Test Adapter |
| title_fullStr | Design, Testing, and Sensitivity Analysis of a Torsional Cyclic Test Adapter |
| title_full_unstemmed | Design, Testing, and Sensitivity Analysis of a Torsional Cyclic Test Adapter |
| title_short | Design, Testing, and Sensitivity Analysis of a Torsional Cyclic Test Adapter |
| title_sort | design testing and sensitivity analysis of a torsional cyclic test adapter |
| topic | torsion mechanism cyclic loading friction plasticity |
| url | https://www.mdpi.com/2075-1702/12/2/90 |
| work_keys_str_mv | AT klaragaber designtestingandsensitivityanalysisofatorsionalcyclictestadapter AT andrejskrlec designtestingandsensitivityanalysisofatorsionalcyclictestadapter AT jernejklemenc designtestingandsensitivityanalysisofatorsionalcyclictestadapter AT domenseruga designtestingandsensitivityanalysisofatorsionalcyclictestadapter |