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dc.contributor.authorErkkilä, Anna-Leena
dc.contributor.authorLeppänen, Teemu
dc.contributor.authorHämäläinen, Jari
dc.contributor.authorTuovinen, Tero
dc.date.accessioned2015-05-06T08:53:51Z
dc.date.available2015-05-06T08:53:51Z
dc.date.issued2015
dc.identifier.citationErkkilä, A.-L., Leppänen, T., Hämäläinen, J., & Tuovinen, T. (2015). Hygro-elasto-plastic model for planar orthotropic material. <i>International Journal of Solids and Structures</i>, <i>62</i>, 66–80. <a href="https://doi.org/10.1016/j.ijsolstr.2015.02.001" target="_blank">https://doi.org/10.1016/j.ijsolstr.2015.02.001</a>
dc.identifier.otherCONVID_24579272
dc.identifier.otherTUTKAID_65393
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/45786
dc.description.abstractAn in-plane elasto-plastic material model and a hygroexpansivity-shrinkage model for paper and board are introduced in this paper. The input parameters for both models are fiber orientation anisotropy and dry solids content. These two models, based on experimental results, could be used in an analytical approach to estimate, for example, plastic strain and shrinkage in simple one-dimensional cases, but for studies of the combined and more complicated effects of hygro-elasto-plastic behavior, a numerical finite element model was constructed. The finite element approach also offered possibilities for studying different structural variations of an orthotropic sheet as well as buckling behavior and internal stress situations under local strain differences. A few examples are presented of the effect of the anisotropy and moisture streaks under stretching and drying conditions on strain differences and buckling. The internal stresses were studied through a case in which the drying of different layers occurred at different stages. Both the anisotropy and moisture streaks were capable of rendering the buckling of the sample visible. The permanency of these defects highly depends on several process stages and tension conditions of the sheet, as demonstrated in this paper. The application possibilities of the hygro-elasto-plastic model are diverse, including investigation into several phenomena and defects appearing in drying, converting and printing process conditions
dc.language.isoeng
dc.publisherPergamon
dc.relation.ispartofseriesInternational Journal of Solids and Structures
dc.subject.otherElasto-plasticity
dc.subject.otherHygroexpansivity
dc.subject.otherAnisotropy
dc.subject.otherDry solids content
dc.subject.otherBuckling
dc.titleHygro-elasto-plastic model for planar orthotropic material
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201505041711
dc.contributor.laitosTietotekniikan laitosfi
dc.contributor.laitosDepartment of Mathematical Information Technologyen
dc.contributor.oppiaineTietotekniikkafi
dc.contributor.oppiaineMathematical Information Technologyen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2015-05-04T09:15:03Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange66–80
dc.relation.issn0020-7683
dc.relation.numberinseries0
dc.relation.volume62
dc.type.versionpublishedVersion
dc.rights.copyright© 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license.
dc.rights.accesslevelopenAccessfi
dc.subject.ysokutistuminen
dc.subject.ysopaperi
jyx.subject.urihttp://www.yso.fi/onto/yso/p3088
jyx.subject.urihttp://www.yso.fi/onto/yso/p8522
dc.rights.urlhttp://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1016/j.ijsolstr.2015.02.001


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© 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license.
Except where otherwise noted, this item's license is described as © 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license.