Investigation the temperature-dependent surface mechanical properties of PolyJet printed samples by cyclic indentation testing in a DMA system
Tools and products used in everyday life are regularly exposed to dynamic, cyclical stress. These stresses are particularly significant in the case of polymers, as their viscoelastic behavior means that creep can be considerable even at room temperature. Therefore, polymer components are often teste...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-03-01
|
| Series: | Results in Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590048X2200108X |
| _version_ | 1827992656788062208 |
|---|---|
| author | Luca Kotrocz Péter Bakonyi |
| author_facet | Luca Kotrocz Péter Bakonyi |
| author_sort | Luca Kotrocz |
| collection | DOAJ |
| description | Tools and products used in everyday life are regularly exposed to dynamic, cyclical stress. These stresses are particularly significant in the case of polymers, as their viscoelastic behavior means that creep can be considerable even at room temperature. Therefore, polymer components are often tested for maximum deformation rather than for maximum load-bearing capacity. Basic material testing methods are tensile, compression, and flexure tests, which are excellent for determining the material properties of the bulk material. However, in some cases, it is more appropriate to investigate surface mechanical properties. The ideal method for this is the depth-sensing indentation test. This method has been widely applied to polymers in the last ten years, but cyclic tests are rare, and creep is not considered in this type of indentation test. In the case of cyclical tests, temperature dependence is not fully examined, either. This paper presents the results of cyclic indentation tests on photopolymer specimens produced by additive manufacturing with the use of a dynamic mechanical analyzer with a unique indentation clamp. We performed the tests at three temperatures to investigate the influence of temperature on cyclic indentation tests. The test results show the variation of deformation between cycles and the significant effect of temperature. |
| first_indexed | 2024-04-10T04:07:38Z |
| format | Article |
| id | doaj.art-c3669ae3459b49a8a1ee99a25ec2a00b |
| institution | Directory Open Access Journal |
| issn | 2590-048X |
| language | English |
| last_indexed | 2024-04-10T04:07:38Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Materials |
| spelling | doaj.art-c3669ae3459b49a8a1ee99a25ec2a00b2023-03-13T04:16:01ZengElsevierResults in Materials2590-048X2023-03-0117100360Investigation the temperature-dependent surface mechanical properties of PolyJet printed samples by cyclic indentation testing in a DMA systemLuca Kotrocz0Péter Bakonyi1Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rakpart 3., HungaryCorresponding author.; Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rakpart 3., HungaryTools and products used in everyday life are regularly exposed to dynamic, cyclical stress. These stresses are particularly significant in the case of polymers, as their viscoelastic behavior means that creep can be considerable even at room temperature. Therefore, polymer components are often tested for maximum deformation rather than for maximum load-bearing capacity. Basic material testing methods are tensile, compression, and flexure tests, which are excellent for determining the material properties of the bulk material. However, in some cases, it is more appropriate to investigate surface mechanical properties. The ideal method for this is the depth-sensing indentation test. This method has been widely applied to polymers in the last ten years, but cyclic tests are rare, and creep is not considered in this type of indentation test. In the case of cyclical tests, temperature dependence is not fully examined, either. This paper presents the results of cyclic indentation tests on photopolymer specimens produced by additive manufacturing with the use of a dynamic mechanical analyzer with a unique indentation clamp. We performed the tests at three temperatures to investigate the influence of temperature on cyclic indentation tests. The test results show the variation of deformation between cycles and the significant effect of temperature.http://www.sciencedirect.com/science/article/pii/S2590048X2200108XCyclicIndentationCreep behaviorRelaxation behaviorTemperature dependencePhotopolymer |
| spellingShingle | Luca Kotrocz Péter Bakonyi Investigation the temperature-dependent surface mechanical properties of PolyJet printed samples by cyclic indentation testing in a DMA system Results in Materials Cyclic Indentation Creep behavior Relaxation behavior Temperature dependence Photopolymer |
| title | Investigation the temperature-dependent surface mechanical properties of PolyJet printed samples by cyclic indentation testing in a DMA system |
| title_full | Investigation the temperature-dependent surface mechanical properties of PolyJet printed samples by cyclic indentation testing in a DMA system |
| title_fullStr | Investigation the temperature-dependent surface mechanical properties of PolyJet printed samples by cyclic indentation testing in a DMA system |
| title_full_unstemmed | Investigation the temperature-dependent surface mechanical properties of PolyJet printed samples by cyclic indentation testing in a DMA system |
| title_short | Investigation the temperature-dependent surface mechanical properties of PolyJet printed samples by cyclic indentation testing in a DMA system |
| title_sort | investigation the temperature dependent surface mechanical properties of polyjet printed samples by cyclic indentation testing in a dma system |
| topic | Cyclic Indentation Creep behavior Relaxation behavior Temperature dependence Photopolymer |
| url | http://www.sciencedirect.com/science/article/pii/S2590048X2200108X |
| work_keys_str_mv | AT lucakotrocz investigationthetemperaturedependentsurfacemechanicalpropertiesofpolyjetprintedsamplesbycyclicindentationtestinginadmasystem AT peterbakonyi investigationthetemperaturedependentsurfacemechanicalpropertiesofpolyjetprintedsamplesbycyclicindentationtestinginadmasystem |