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Timoshenko beam model for chiral materials

Ma, T Y; Wang, Y N; Yuan, L; Wang, Jian-Shan; Qin, Qing Hua

Description

Natural and artificial chiral materials such as deoxyribonucleic acid (DNA), chromatin fibers, flagellar filaments, chiral nanotubes, and chiral lattice materials widely exist. Due to the chirality of intricately helical or twisted microstructures, such materials hold great promise for use in diverse applications in smart sensors and actuators, force probes in biomedical engineering, structural elements for absorption of microwaves and elastic waves, etc. In this paper, a Timoshenko beam model...[Show more]

dc.contributor.authorMa, T Y
dc.contributor.authorWang, Y N
dc.contributor.authorYuan, L
dc.contributor.authorWang, Jian-Shan
dc.contributor.authorQin, Qing Hua
dc.date.accessioned2020-01-28T00:20:57Z
dc.identifier.issn0567-7718
dc.identifier.urihttp://hdl.handle.net/1885/199905
dc.description.abstractNatural and artificial chiral materials such as deoxyribonucleic acid (DNA), chromatin fibers, flagellar filaments, chiral nanotubes, and chiral lattice materials widely exist. Due to the chirality of intricately helical or twisted microstructures, such materials hold great promise for use in diverse applications in smart sensors and actuators, force probes in biomedical engineering, structural elements for absorption of microwaves and elastic waves, etc. In this paper, a Timoshenko beam model for chiral materials is developed based on noncentrosymmetric micropolar elasticity theory. The governing equations and boundary conditions for a chiral beam problem are derived using the variational method and Hamilton’s principle. The static bending and free vibration problem of a chiral beam are investigated using the proposed model. It is found that chirality can significantly affect the mechanical behavior of beams, making materials more flexible compared with nonchiral counterparts, inducing coupled twisting deformation, relatively larger deflection, and lower natural frequency. This study is helpful not only for understanding the mechanical behavior of chiral materials such as DNA and chromatin fibers and characterizing their mechanical properties, but also for the design of hierarchically structured chiral materials.
dc.description.sponsorshipThis study was supported by the National Natural Science Foundation of China (Grants 11472191, 11272230, and 11372100).
dc.format.extent12 pages
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherSpringer
dc.rights© The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences and Springer-Verlag GmbH Germany, part of Springer Nature 2017
dc.sourceActa Mechanica Sinica
dc.subjectTimoshenko beam model
dc.subjectChiral material
dc.subjectChirality
dc.subjectDeflection
dc.subjectMicrorotation
dc.titleTimoshenko beam model for chiral materials
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume34
dcterms.dateAccepted2017-10-13
dc.date.issued2017-12-22
local.identifier.absfor091299 - Materials Engineering not elsewhere classified
local.identifier.ariespublicationa383154xPUB9886
local.publisher.urlhttps://www.springernature.com/
local.type.statusPublished Version
local.contributor.affiliationMa, T Y, Tianjin University
local.contributor.affiliationWang, Y N, Deakin University
local.contributor.affiliationYuan, L, Tianjin University
local.contributor.affiliationWang, Jian-Shan, Tianjin University
local.contributor.affiliationQin, Qing Hua, College of Engineering and Computer Science, The Australian National University
local.description.embargo2037-12-31
local.identifier.essn1614-3116
local.bibliographicCitation.startpage549
local.bibliographicCitation.lastpage560
local.identifier.doi10.1007/s10409-017-0735-y
dc.date.updated2019-11-25T07:24:19Z
local.identifier.scopusID2-s2.0-85038876435
local.identifier.thomsonID000432609500013
CollectionsANU Research Publications

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