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dc.contributor.authorBosia, Federico
dc.contributor.authorPugno, Nicola M.
dc.contributor.authorBuehler, Markus J
dc.date.accessioned2011-05-19T13:24:36Z
dc.date.available2011-05-19T13:24:36Z
dc.date.issued2010-11
dc.date.submitted2010-09
dc.identifier.issn1539-3755
dc.identifier.issn1550-2376
dc.identifier.urihttp://hdl.handle.net/1721.1/62840
dc.description.abstractBiological 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.en_US
dc.description.sponsorshipUnited States. Army Research Office (W911NF-06-1-0291)en_US
dc.description.sponsorshipMultidisciplinary University Research Initiative (MURI) (W911NF-09-1-0541)en_US
dc.description.sponsorshipUnited States. Air Force Office of Scientific Research (FA9550-08-1-0321)en_US
dc.description.sponsorshipMETREGEN grant (2009-2012)en_US
dc.language.isoen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevE.82.056103en_US
dc.rightsArticle 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.en_US
dc.sourceAPSen_US
dc.titleHierarchical simulations for the design of supertough nanofibers inspired by spider silken_US
dc.typeArticleen_US
dc.identifier.citationBosia, 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 Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Laboratory for Atomistic and Molecular Mechanicsen_US
dc.contributor.approverBuehler, Markus J.
dc.contributor.mitauthorBuehler, Markus J.
dc.contributor.mitauthorPugno, Nicola M.
dc.relation.journalPhysical Review Een_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsBosia, Federico; Buehler, Markus; Pugno, Nicolaen
dc.identifier.orcidhttps://orcid.org/0000-0002-4173-9659
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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