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Article: Bending of nanoscale structures: Inconsistency between atomistic simulation and strain gradient elasticity solution

TitleBending of nanoscale structures: Inconsistency between atomistic simulation and strain gradient elasticity solution
Authors
KeywordsElastic behavior
Molecular statics simulation
Strain gradient effect
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/commatsci
Citation
Computational Materials Science, 2007, v. 40 n. 1, p. 108-113 How to Cite?
AbstractStrain gradient effect of micro- and nanoscale structures in plasticity is well known. Elastic strain gradient effect has also been reported, but so far only theoretical work about this issue could be found. No confirmatory data obtained from experiments and atomistic simulation has been published. In the present paper, molecular statics simulation of Cu and Si nanoplates bending was carried out and compared to a strain gradient elasticity solution to ascertain whether there is also any strain gradient effect in elastic range, and its significance if presence. It is shown that there exists a noticeable inconsistency between atomistic simulation and theoretical prediction. In contrary to hardening effect predicted by the strain gradient elasticity, the atomistic simulation results reveal a significant softening effect in diamond silicon nanoplate bending when the thickness is less than 10 nm. Although a hardening effect is exhibited in the atomistic simulation of FCC copper nanoplate bending, it is negligible. We regard this paper as an attempt to draw more attention and discussion about this issue in the community of this area. © 2006.
Persistent Identifierhttp://hdl.handle.net/10722/75501
ISSN
2015 Impact Factor: 2.086
2015 SCImago Journal Rankings: 1.037
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSun, ZHen_HK
dc.contributor.authorWang, XXen_HK
dc.contributor.authorSoh, AKen_HK
dc.contributor.authorWu, HAen_HK
dc.contributor.authorWang, Yen_HK
dc.date.accessioned2010-09-06T07:11:46Z-
dc.date.available2010-09-06T07:11:46Z-
dc.date.issued2007en_HK
dc.identifier.citationComputational Materials Science, 2007, v. 40 n. 1, p. 108-113en_HK
dc.identifier.issn0927-0256en_HK
dc.identifier.urihttp://hdl.handle.net/10722/75501-
dc.description.abstractStrain gradient effect of micro- and nanoscale structures in plasticity is well known. Elastic strain gradient effect has also been reported, but so far only theoretical work about this issue could be found. No confirmatory data obtained from experiments and atomistic simulation has been published. In the present paper, molecular statics simulation of Cu and Si nanoplates bending was carried out and compared to a strain gradient elasticity solution to ascertain whether there is also any strain gradient effect in elastic range, and its significance if presence. It is shown that there exists a noticeable inconsistency between atomistic simulation and theoretical prediction. In contrary to hardening effect predicted by the strain gradient elasticity, the atomistic simulation results reveal a significant softening effect in diamond silicon nanoplate bending when the thickness is less than 10 nm. Although a hardening effect is exhibited in the atomistic simulation of FCC copper nanoplate bending, it is negligible. We regard this paper as an attempt to draw more attention and discussion about this issue in the community of this area. © 2006.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/commatscien_HK
dc.relation.ispartofComputational Materials Scienceen_HK
dc.rightsComputational Materials Science. Copyright © Elsevier BV.en_HK
dc.subjectElastic behavioren_HK
dc.subjectMolecular statics simulationen_HK
dc.subjectStrain gradient effecten_HK
dc.titleBending of nanoscale structures: Inconsistency between atomistic simulation and strain gradient elasticity solutionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0927-0256&volume=40&issue=1&spage=108&epage=113&date=2007&atitle=Bending+of+nanoscale+structures:+Inconsistency+between+atomistic+simulation+and+strain+gradient+elasticity+solutionen_HK
dc.identifier.emailSoh, AK:aksoh@hkucc.hku.hken_HK
dc.identifier.authoritySoh, AK=rp00170en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.commatsci.2006.11.015en_HK
dc.identifier.scopuseid_2-s2.0-34248190789en_HK
dc.identifier.hkuros144675en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34248190789&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume40en_HK
dc.identifier.issue1en_HK
dc.identifier.spage108en_HK
dc.identifier.epage113en_HK
dc.identifier.isiWOS:000247773900014-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridSun, ZH=22981699200en_HK
dc.identifier.scopusauthoridWang, XX=7501854488en_HK
dc.identifier.scopusauthoridSoh, AK=7006795203en_HK
dc.identifier.scopusauthoridWu, HA=8980446400en_HK
dc.identifier.scopusauthoridWang, Y=36063916100en_HK

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