Density scaling in the mechanics of a disordered mechanical meta-material

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Rayneau-Kirkhope, Daniel Bonfanti, Silvia Zapperi, Stefano 2019-05-06T09:16:52Z 2019-05-06T09:16:52Z 2019-03-18
dc.identifier.citation Rayneau-Kirkhope , D , Bonfanti , S & Zapperi , S 2019 , ' Density scaling in the mechanics of a disordered mechanical meta-material ' Applied Physics Letters , vol. 114 , no. 11 , 111902 , pp. 1-5 . en
dc.identifier.issn 0003-6951
dc.identifier.issn 1077-3118
dc.identifier.other PURE UUID: 86a5486f-3138-4fd2-aaf5-1317b03459df
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
dc.description.abstract Nature provides examples of self-assemble lightweight disordered network structures with remarkable mechanical properties which are desirable for many application purposes but challenging to reproduce artificially. Previous experimental and computational studies investigated the mechanical responses of random network structures focusing on topological and geometrical aspects in terms of variable connectivity or probability to place beam elements. However, for practical purposes, an ambitious challenge is to design new materials with the possibility to tailor their mechanical features such as stiffness. Here, we design a two dimensional disordered mechanical meta-material exhibiting unconventional stiffness-density scaling in the regime where both bending and stretching are relevant for deformation. In this regime, the mechanical meta-material covers a wide interval of the Young modulus-density plane, simultaneously exhibiting high critical stress and critical strain. Our results, supported by finite element simulations, provide the guiding principles to design on demand disordered metamaterials, bridging the gap between artificial and naturally occurring materials. en
dc.format.extent 5
dc.format.extent 1-5
dc.language.iso en en
dc.publisher AMER INST PHYSICS
dc.relation.ispartofseries Applied Physics Letters en
dc.relation.ispartofseries Volume 114, issue 11 en
dc.rights embargoedAccess en
dc.subject.other Physics and Astronomy (miscellaneous) en
dc.subject.other 114 Physical sciences en
dc.title Density scaling in the mechanics of a disordered mechanical meta-material en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Molecular Materials
dc.contributor.department University of Milan
dc.contributor.department Department of Applied Physics en
dc.subject.keyword PERCOLATION
dc.subject.keyword METAMATERIALS
dc.subject.keyword EXPONENT
dc.subject.keyword CONDUCTIVITY
dc.subject.keyword NETWORKS
dc.subject.keyword STRESS
dc.subject.keyword Physics and Astronomy (miscellaneous)
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201905062832
dc.identifier.doi 10.1063/1.5083027 info:eu-repo/date/embargoEnd/2020-03-18

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