dc.contributor.authorXu, Jin
dc.contributor.authorLee, Chi King
dc.contributor.authorTan, K. H.
dc.identifier.citationXu, J., Lee, C., & Tan, K. (2013). An XFEM frame for plate elements in yield line analyses. International Journal for Numerical Methods in Engineering, 96(3), 50-175.en_US
dc.description.abstractA high gradient zone (HGZ) comes into existence in both rotation and deflection displacement fields in the vicinity of a yield line in a plate structure with elasto-plastic material. This HGZ makes the displacements non-smooth locally around the yield line. The Extended Finite Element Method (XFEM) has been proved to be an effective numerical method to capture the behavior of a structure with a locally non-smooth displacement field. In this article, a 6-node triangular and a 9-node quadrilateral Mindlin-Reissner plate element with the XFEM formulation are presented to trace the elasto-plastic behavior of a plate in small-deformation analyses. Regularized enrichments are employed to enrich the rotation and the deflection displacement approximation fields simultaneously so that the non-smoothness in a displacement field near a yield line can be captured. The discrete shear gap method (DSG) is adopted to alleviate shear locking phenomena in the present XFEM plate element. Several plate bending examples are simulated to show the robustness of the enrichment in capture the high gradient zone resulted from yield lines and the effectiveness of the application of DSG method in controlling the shear locking in the XFEM plate element.en_US
dc.format.extent44 p.en_US
dc.relation.ispartofseriesInternational journal for numerical methods in engineeringen_US
dc.rights© 2013 John Wiley & Sons, Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by International Journal for Numerical Methods in Engineering, John Wiley & Sons, Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1002/nme.4535].en_US
dc.subjectDRNTU::Engineering::Civil engineering::Structures and design
dc.titleAn XFEM frame for plate elements in yield line analysesen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.description.versionAccepted versionen_US

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