Mechanical Properties of Dragline Silk Fiber Using a Bottom-Up Approach
We propose a molecular-based three-dimensional (3D) continuum model of dragline silk of <i>Araneus diadematus</i>, which takes into account the plasticity of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/6/3/95 |
| _version_ | 1797470428207251456 |
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| author | Sandeep P. Patil Ambarish Kulkarni Bernd Markert |
| author_facet | Sandeep P. Patil Ambarish Kulkarni Bernd Markert |
| author_sort | Sandeep P. Patil |
| collection | DOAJ |
| description | We propose a molecular-based three-dimensional (3D) continuum model of dragline silk of <i>Araneus diadematus</i>, which takes into account the plasticity of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>β</mi></semantics></math></inline-formula>-sheet crystals, the rate-dependent behavior of the amorphous matrix, and the viscous interface friction between them. For the proposed model, we computed the tensile properties, the effects of velocity on the mechanical properties, and hysteresis values, which are in good agreement with available experimental data. The silk fiber model’s yield point, breaking strength, post-yield stiffness, and toughness increased with increasing pulling velocity, while extensibility and the diameter of the silk fiber decreased. Our bottom-up approach has shed light on silk fiber mechanics, which can be used as an essential tool to design artificial composite materials. |
| first_indexed | 2024-03-09T19:36:12Z |
| format | Article |
| id | doaj.art-091d24f6c78b471988736518c5953f3c |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-09T19:36:12Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-091d24f6c78b471988736518c5953f3c2023-11-24T01:52:52ZengMDPI AGJournal of Composites Science2504-477X2022-03-01639510.3390/jcs6030095Mechanical Properties of Dragline Silk Fiber Using a Bottom-Up ApproachSandeep P. Patil0Ambarish Kulkarni1Bernd Markert2Institute of General Mechanics, RWTH Aachen University, Eilfschornsteinstraße 18, 52062 Aachen, GermanyInstitute of General Mechanics, RWTH Aachen University, Eilfschornsteinstraße 18, 52062 Aachen, GermanyInstitute of General Mechanics, RWTH Aachen University, Eilfschornsteinstraße 18, 52062 Aachen, GermanyWe propose a molecular-based three-dimensional (3D) continuum model of dragline silk of <i>Araneus diadematus</i>, which takes into account the plasticity of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>β</mi></semantics></math></inline-formula>-sheet crystals, the rate-dependent behavior of the amorphous matrix, and the viscous interface friction between them. For the proposed model, we computed the tensile properties, the effects of velocity on the mechanical properties, and hysteresis values, which are in good agreement with available experimental data. The silk fiber model’s yield point, breaking strength, post-yield stiffness, and toughness increased with increasing pulling velocity, while extensibility and the diameter of the silk fiber decreased. Our bottom-up approach has shed light on silk fiber mechanics, which can be used as an essential tool to design artificial composite materials.https://www.mdpi.com/2504-477X/6/3/95dragline spider silk3D fiber modelfinite element methodfiber mechanics |
| spellingShingle | Sandeep P. Patil Ambarish Kulkarni Bernd Markert Mechanical Properties of Dragline Silk Fiber Using a Bottom-Up Approach Journal of Composites Science dragline spider silk 3D fiber model finite element method fiber mechanics |
| title | Mechanical Properties of Dragline Silk Fiber Using a Bottom-Up Approach |
| title_full | Mechanical Properties of Dragline Silk Fiber Using a Bottom-Up Approach |
| title_fullStr | Mechanical Properties of Dragline Silk Fiber Using a Bottom-Up Approach |
| title_full_unstemmed | Mechanical Properties of Dragline Silk Fiber Using a Bottom-Up Approach |
| title_short | Mechanical Properties of Dragline Silk Fiber Using a Bottom-Up Approach |
| title_sort | mechanical properties of dragline silk fiber using a bottom up approach |
| topic | dragline spider silk 3D fiber model finite element method fiber mechanics |
| url | https://www.mdpi.com/2504-477X/6/3/95 |
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