dc.contributor.author | Holmedal, Bjørn | |
dc.date.accessioned | 2019-12-17T09:54:11Z | |
dc.date.available | 2019-12-17T09:54:11Z | |
dc.date.created | 2019-12-10T13:04:54Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | International journal of plasticity. 2019, 123 86-100. | nb_NO |
dc.identifier.issn | 0749-6419 | |
dc.identifier.uri | http://hdl.handle.net/11250/2633557 | |
dc.description.abstract | A model for distorting the yield surface by flattening the part in the reverse of the loading direction, is suggested. As the basis for the distortion, the model applies a pair of second-order back-stress tensors of similar type as in kinematic hardening models. The yield-surface formulation provides a flattening and shrinkage of a given first-order homogeneous yield surface in the reverse directions of the back-stress tensors. The mathematical formulation is based on similar ideas as the HAH (homogeneous yield function-based anisotropic hardening) model, for which the calibration of the equivalent stress-strain curve is independent of the Bauschinger part of the model. Severe mathematical and numerical challenges of the HAH model are pointed out, but are avoided in the new model. Furthermore, the yield surface doesn't have to contain the origin, and the r-value is conserved in stress reversals. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Elsevier | nb_NO |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Bauschinger effect modelled by yield surface distortions | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.pagenumber | 86-100 | nb_NO |
dc.source.volume | 123 | nb_NO |
dc.source.journal | International journal of plasticity | nb_NO |
dc.identifier.doi | https://doi.org/10.1016/j.ijplas.2019.07.009 | |
dc.identifier.cristin | 1758838 | |
dc.description.localcode | Copyright the Author. This is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. You are not required to obtain permission to reuse this article. To request permission for a type of use not listed, please contact Elsevier Global Rights Department. | nb_NO |
cristin.unitcode | 194,66,35,0 | |
cristin.unitname | Institutt for materialteknologi | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |