Hierarchical simulations for the design of supertough nanofibers inspired by spider silk
Biological materials such as spider silk display hierarchical structures, from nano to macro, effectively linking nanoscale constituents to larger-scale functional material properties. Here, we develop a model that is capable of determining the strength and toughness of elastic-plastic composites fr...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/62840 https://orcid.org/0000-0002-4173-9659 |
| _version_ | 1811076618513285120 |
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| author | Bosia, Federico Pugno, Nicola M. Buehler, Markus J |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Bosia, Federico Pugno, Nicola M. Buehler, Markus J |
| author_sort | Bosia, Federico |
| collection | MIT |
| description | Biological materials such as spider silk display hierarchical structures, from nano to macro, effectively linking nanoscale constituents to larger-scale functional material properties. Here, we develop a model that is capable of determining the strength and toughness of elastic-plastic composites from the properties, percentages, and arrangement of its constituents, and of estimating the corresponding dissipated energy during damage progression, in crack-opening control. Specifically, we adopt a fiber bundle model approach with a hierarchical multiscale self-similar procedure which enables to span various orders of magnitude in size and to explicitly take into account the hierarchical topology of natural materials. Hierarchical architectures and self-consistent energy dissipation mechanisms (including plasticity), both omitted in common fiber bundle models, are fully considered in our model. By considering one of the toughest known materials today as an example application, a synthetic fiber composed of single-walled carbon nanotubes and polyvinyl alcohol gel, we compute strength and specific energy absorption values that are consistent with those experimentally observed. Our calculations are capable of predicting these values solely based on the properties of the constituent materials and knowledge of the structural multiscale topology. Due to the crack-opening control nature of the simulations, it is also possible to derive a critical minimal percentage of plastic component needed to avoid catastrophic behavior of the material. These results suggest that the model is capable of helping in the design of new supertough materials. |
| first_indexed | 2024-09-23T10:25:00Z |
| format | Article |
| id | mit-1721.1/62840 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:25:00Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/628402022-09-30T20:57:12Z Hierarchical simulations for the design of supertough nanofibers inspired by spider silk Bosia, Federico Pugno, Nicola M. Buehler, Markus J Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Massachusetts Institute of Technology. Laboratory for Atomistic and Molecular Mechanics Buehler, Markus J. Buehler, Markus J. Pugno, Nicola M. Biological materials such as spider silk display hierarchical structures, from nano to macro, effectively linking nanoscale constituents to larger-scale functional material properties. Here, we develop a model that is capable of determining the strength and toughness of elastic-plastic composites from the properties, percentages, and arrangement of its constituents, and of estimating the corresponding dissipated energy during damage progression, in crack-opening control. Specifically, we adopt a fiber bundle model approach with a hierarchical multiscale self-similar procedure which enables to span various orders of magnitude in size and to explicitly take into account the hierarchical topology of natural materials. Hierarchical architectures and self-consistent energy dissipation mechanisms (including plasticity), both omitted in common fiber bundle models, are fully considered in our model. By considering one of the toughest known materials today as an example application, a synthetic fiber composed of single-walled carbon nanotubes and polyvinyl alcohol gel, we compute strength and specific energy absorption values that are consistent with those experimentally observed. Our calculations are capable of predicting these values solely based on the properties of the constituent materials and knowledge of the structural multiscale topology. Due to the crack-opening control nature of the simulations, it is also possible to derive a critical minimal percentage of plastic component needed to avoid catastrophic behavior of the material. These results suggest that the model is capable of helping in the design of new supertough materials. United States. Army Research Office (W911NF-06-1-0291) Multidisciplinary University Research Initiative (MURI) (W911NF-09-1-0541) United States. Air Force Office of Scientific Research (FA9550-08-1-0321) METREGEN grant (2009-2012) 2011-05-19T13:24:36Z 2011-05-19T13:24:36Z 2010-11 2010-09 Article http://purl.org/eprint/type/JournalArticle 1539-3755 1550-2376 http://hdl.handle.net/1721.1/62840 Bosia, Federico, Markus J. Buehler, and Nicola M. Pugno. “Hierarchical Simulations for the Design of Supertough Nanofibers Inspired by Spider Silk.” Physical Review E 82.5 (2010) : 056103. © 2010 The American Physical Society https://orcid.org/0000-0002-4173-9659 en_US http://dx.doi.org/10.1103/PhysRevE.82.056103 Physical Review E Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Bosia, Federico Pugno, Nicola M. Buehler, Markus J Hierarchical simulations for the design of supertough nanofibers inspired by spider silk |
| title | Hierarchical simulations for the design of supertough nanofibers inspired by spider silk |
| title_full | Hierarchical simulations for the design of supertough nanofibers inspired by spider silk |
| title_fullStr | Hierarchical simulations for the design of supertough nanofibers inspired by spider silk |
| title_full_unstemmed | Hierarchical simulations for the design of supertough nanofibers inspired by spider silk |
| title_short | Hierarchical simulations for the design of supertough nanofibers inspired by spider silk |
| title_sort | hierarchical simulations for the design of supertough nanofibers inspired by spider silk |
| url | http://hdl.handle.net/1721.1/62840 https://orcid.org/0000-0002-4173-9659 |
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