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Crack roughness in the two-dimensional random threshold beam model

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Nukala, Phani K. V. V.
dc.contributor.author Zapperi, Stefano
dc.contributor.author Alava, Mikko J.
dc.contributor.author Simunovic, Srdan
dc.date.accessioned 2015-11-27T10:02:33Z
dc.date.available 2015-11-27T10:02:33Z
dc.date.issued 2008
dc.identifier.citation Nukala, Phani K. V. V. & Zapperi, Stefano & Alava, Mikko J. & Simunovic, Srdan. 2008. Crack roughness in the two-dimensional random threshold beam model. Physical Review E. Volume 78, Issue 4. 046105/1-8. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.78.046105. en
dc.identifier.issn 1539-3755 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/18875
dc.description.abstract We study the scaling of two-dimensional crack roughness using large scale beam lattice systems. Our results indicate that the crack roughness obtained using beam lattice systems does not exhibit anomalous scaling in sharp contrast to the simulation results obtained using scalar fuse lattices. The local and global roughness exponents (ζloc and ζ, respectively) are equal to each other, and the two-dimensional crack roughness exponent is estimated to be ζloc=ζ=0.64±0.02. Removal of overhangs (jumps) in the crack profiles eliminates even the minute differences between the local and global roughness exponents. Furthermore, removing these jumps in the crack profile completely eliminates the multiscaling observed in other studies. We find that the probability density distribution p[Δh(l)] of the height differences Δh(l)=[h(x+l)−h(x)] of the crack profile obtained after removing the jumps in the profiles follows a Gaussian distribution even for small window sizes (l). en
dc.format.extent 046105/1-8
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society (APS) en
dc.relation.ispartofseries Physical Review E en
dc.relation.ispartofseries Volume 78, Issue 4
dc.rights © 2008 American Physical Society (APS). This is the accepted version of the following article: Miksic, A. & Alava, Mikko J. 2013. Evolution of grain contacts in a granular sample under creep and stress relaxation. Physical Review E. Volume 88, Issue 3. 032207/1-7. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.88.032207, which has been published in final form at http://journals.aps.org/pre/abstract/10.1103/PhysRevE.78.046105. en
dc.subject.other Physics en
dc.title Crack roughness in the two-dimensional random threshold beam model en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Physical Society (APS)
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.contributor.department Department of Applied Physics en
dc.subject.keyword two-dimensional crack roughness en
dc.subject.keyword scaling en
dc.subject.keyword large scale beam lattice systems en
dc.identifier.urn URN:NBN:fi:aalto-201511275373
dc.type.dcmitype text en
dc.identifier.doi 10.1103/physreve.78.046105
dc.type.version Final published version en

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