Mechanical characterization of PVA hydrogels' rate-dependent response using multi-axial loading.
The time-dependent properties of rubber-like synthesized and biological materials are crucial for their applications. Currently, this behavior is mainly measured using axial tensile test, compression test, or indentation. Limited studies performed on using multi-axial loading measurements of time-de...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2020-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0233021 |
| _version_ | 1818586614954196992 |
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| author | Wanis Nafo Adil Al-Mayah |
| author_facet | Wanis Nafo Adil Al-Mayah |
| author_sort | Wanis Nafo |
| collection | DOAJ |
| description | The time-dependent properties of rubber-like synthesized and biological materials are crucial for their applications. Currently, this behavior is mainly measured using axial tensile test, compression test, or indentation. Limited studies performed on using multi-axial loading measurements of time-dependent material behavior exist in the literature. Therefore, the aim of this study is to investigate the viscoelastic response of rubber-like materials under multi-axial loading using cavity expansion and relaxation tests. The tests were performed on PVA hydrogel specimens. Three hyperelasitc models and one term Prony series were used to characterize the viscoelastic response of the hydrogels. Finite element (FE) simulations were performed to verify the validity of the calibrated material coefficients by reproducing the experimental results. The excellent agreement between the experimental, analytical and numerical data proves the capability of the cavity expansion technique to measure the time-dependent behavior of viscoelastic materials. |
| first_indexed | 2024-12-16T08:55:46Z |
| format | Article |
| id | doaj.art-ad3f9b96ad8145ba8bcd226d956992de |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-16T08:55:46Z |
| publishDate | 2020-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-ad3f9b96ad8145ba8bcd226d956992de2022-12-21T22:37:17ZengPublic Library of Science (PLoS)PLoS ONE1932-62032020-01-01155e023302110.1371/journal.pone.0233021Mechanical characterization of PVA hydrogels' rate-dependent response using multi-axial loading.Wanis NafoAdil Al-MayahThe time-dependent properties of rubber-like synthesized and biological materials are crucial for their applications. Currently, this behavior is mainly measured using axial tensile test, compression test, or indentation. Limited studies performed on using multi-axial loading measurements of time-dependent material behavior exist in the literature. Therefore, the aim of this study is to investigate the viscoelastic response of rubber-like materials under multi-axial loading using cavity expansion and relaxation tests. The tests were performed on PVA hydrogel specimens. Three hyperelasitc models and one term Prony series were used to characterize the viscoelastic response of the hydrogels. Finite element (FE) simulations were performed to verify the validity of the calibrated material coefficients by reproducing the experimental results. The excellent agreement between the experimental, analytical and numerical data proves the capability of the cavity expansion technique to measure the time-dependent behavior of viscoelastic materials.https://doi.org/10.1371/journal.pone.0233021 |
| spellingShingle | Wanis Nafo Adil Al-Mayah Mechanical characterization of PVA hydrogels' rate-dependent response using multi-axial loading. PLoS ONE |
| title | Mechanical characterization of PVA hydrogels' rate-dependent response using multi-axial loading. |
| title_full | Mechanical characterization of PVA hydrogels' rate-dependent response using multi-axial loading. |
| title_fullStr | Mechanical characterization of PVA hydrogels' rate-dependent response using multi-axial loading. |
| title_full_unstemmed | Mechanical characterization of PVA hydrogels' rate-dependent response using multi-axial loading. |
| title_short | Mechanical characterization of PVA hydrogels' rate-dependent response using multi-axial loading. |
| title_sort | mechanical characterization of pva hydrogels rate dependent response using multi axial loading |
| url | https://doi.org/10.1371/journal.pone.0233021 |
| work_keys_str_mv | AT wanisnafo mechanicalcharacterizationofpvahydrogelsratedependentresponseusingmultiaxialloading AT adilalmayah mechanicalcharacterizationofpvahydrogelsratedependentresponseusingmultiaxialloading |