The transverse and longitudinal elastic constants of pulp fibers in paper sheets
Abstract Cellulose fibers are a major industrial input, but due to their irregular shape and anisotropic material response, accurate material characterization is difficult. Single fiber tensile testing is the most popular way to estimate the material properties of individual fibers. However, such te...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-01515-9 |
| _version_ | 1818837167353364480 |
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| author | Caterina Czibula August Brandberg Megan J. Cordill Aleksandar Matković Oleksandr Glushko Chiara Czibula Artem Kulachenko Christian Teichert Ulrich Hirn |
| author_facet | Caterina Czibula August Brandberg Megan J. Cordill Aleksandar Matković Oleksandr Glushko Chiara Czibula Artem Kulachenko Christian Teichert Ulrich Hirn |
| author_sort | Caterina Czibula |
| collection | DOAJ |
| description | Abstract Cellulose fibers are a major industrial input, but due to their irregular shape and anisotropic material response, accurate material characterization is difficult. Single fiber tensile testing is the most popular way to estimate the material properties of individual fibers. However, such tests can only be performed along the axis of the fiber and are associated with problems of enforcing restraints. Alternative indirect approaches, such as micro-mechanical modeling, can help but yield results that are not fully decoupled from the model assumptions. Here, we compare these methods with nanoindentation as a method to extract elastic material constants of the individual fibers. We show that both the longitudinal and the transverse elastic modulus can be determined, additionally enabling the measurement of fiber properties in-situ inside a sheet of paper such that the entire industrial process history is captured. The obtained longitudinal modulus is comparable to traditional methods for larger indents but with a strongly increased scatter as the size of the indentation is decreased further. |
| first_indexed | 2024-12-19T03:18:12Z |
| format | Article |
| id | doaj.art-a59af805172d43ba9dfff790219435d8 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T03:18:12Z |
| publishDate | 2021-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-a59af805172d43ba9dfff790219435d82022-12-21T20:37:50ZengNature PortfolioScientific Reports2045-23222021-11-0111111310.1038/s41598-021-01515-9The transverse and longitudinal elastic constants of pulp fibers in paper sheetsCaterina Czibula0August Brandberg1Megan J. Cordill2Aleksandar Matković3Oleksandr Glushko4Chiara Czibula5Artem Kulachenko6Christian Teichert7Ulrich Hirn8Institute of Physics, Montanuniversitaet LeobenChristian Doppler Laboratory for Fiber Swelling and Paper Performance, Graz University of TechnologyErich Schmid Institute for Materials Science, Austrian Academy of SciencesInstitute of Physics, Montanuniversitaet LeobenDepartment Materials Science, Montanuniversitaet LeobenInstitute of Bioproducts and Paper Technology, Graz University of TechnologyChristian Doppler Laboratory for Fiber Swelling and Paper Performance, Graz University of TechnologyInstitute of Physics, Montanuniversitaet LeobenInstitute of Bioproducts and Paper Technology, Graz University of TechnologyAbstract Cellulose fibers are a major industrial input, but due to their irregular shape and anisotropic material response, accurate material characterization is difficult. Single fiber tensile testing is the most popular way to estimate the material properties of individual fibers. However, such tests can only be performed along the axis of the fiber and are associated with problems of enforcing restraints. Alternative indirect approaches, such as micro-mechanical modeling, can help but yield results that are not fully decoupled from the model assumptions. Here, we compare these methods with nanoindentation as a method to extract elastic material constants of the individual fibers. We show that both the longitudinal and the transverse elastic modulus can be determined, additionally enabling the measurement of fiber properties in-situ inside a sheet of paper such that the entire industrial process history is captured. The obtained longitudinal modulus is comparable to traditional methods for larger indents but with a strongly increased scatter as the size of the indentation is decreased further.https://doi.org/10.1038/s41598-021-01515-9 |
| spellingShingle | Caterina Czibula August Brandberg Megan J. Cordill Aleksandar Matković Oleksandr Glushko Chiara Czibula Artem Kulachenko Christian Teichert Ulrich Hirn The transverse and longitudinal elastic constants of pulp fibers in paper sheets Scientific Reports |
| title | The transverse and longitudinal elastic constants of pulp fibers in paper sheets |
| title_full | The transverse and longitudinal elastic constants of pulp fibers in paper sheets |
| title_fullStr | The transverse and longitudinal elastic constants of pulp fibers in paper sheets |
| title_full_unstemmed | The transverse and longitudinal elastic constants of pulp fibers in paper sheets |
| title_short | The transverse and longitudinal elastic constants of pulp fibers in paper sheets |
| title_sort | transverse and longitudinal elastic constants of pulp fibers in paper sheets |
| url | https://doi.org/10.1038/s41598-021-01515-9 |
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