%0 Journal Article %1 mahabadi_grasselli_munjiza_2010 %A Mahabadi, O.k. %A Grasselli, G %A Munjiza, A %D 2010 %J Computers & Geosciences %K article grasselli mahabadi %N 2 %P 241-252 %R 10.1016/j.cageo.2009.05.010 %T Y-GUI: A graphical user interface and pre-processor for the combined finite-discrete element code, Y2D, incorporating material heterogeneity %U https://www.sciencedirect.com/science/article/pii/S0098300409003124?via%3Dihub %V 36 %X Numerical modelling of a discontinuous medium has gained much popularity in recent decades. The combined finite-discrete element method (FEM/DEM) is a state-of-the-art numerical modelling technique pioneered in the mid-1990s. Y2D is a robust two-dimensional FEM/DEM research code developed by Munjiza in 2004. The major limitations of this code are (1) the lack of a graphical user interface (GUI) meaning that all pre-processing has to be made directly on an ASCII input file and (2) the inability of dealing with heterogeneous media. This contribution presents the first GUI and pre-processor, known as Y-GUI, developed for Y2D and the implementation of a new algorithm that allows for the use of heterogeneous materials. In the text all major FEM/DEM concepts are described, together with the main features available in the Y-GUI. The use of Y-GUI is presented in detail and some of its functionalities, including the heterogeneity module to be used to randomly assign materials to a mesh, are introduced. At the end of the manuscript, four case studies, including Brazilian tests of a homogeneous and a layered rock sample and a rock avalanche, are presented.

@article{mahabadi_grasselli_munjiza_2010, abstract = {Numerical modelling of a discontinuous medium has gained much popularity in recent decades. The combined finite-discrete element method (FEM/DEM) is a state-of-the-art numerical modelling technique pioneered in the mid-1990s. Y2D is a robust two-dimensional FEM/DEM research code developed by Munjiza in 2004. The major limitations of this code are (1) the lack of a graphical user interface (GUI) meaning that all pre-processing has to be made directly on an ASCII input file and (2) the inability of dealing with heterogeneous media. This contribution presents the first GUI and pre-processor, known as Y-GUI, developed for Y2D and the implementation of a new algorithm that allows for the use of heterogeneous materials. In the text all major FEM/DEM concepts are described, together with the main features available in the Y-GUI. The use of Y-GUI is presented in detail and some of its functionalities, including the heterogeneity module to be used to randomly assign materials to a mesh, are introduced. At the end of the manuscript, four case studies, including Brazilian tests of a homogeneous and a layered rock sample and a rock avalanche, are presented.}, added-at = {2018-12-14T00:18:59.000+0100}, author = {Mahabadi, O.k. and Grasselli, G and Munjiza, A}, biburl = {https://www.bibsonomy.org/bibtex/2bc1404dbc27d92350ef158cd240d4d70/geogroup_uoft}, doi = {10.1016/j.cageo.2009.05.010}, interhash = {661f982475cfef4dc665430a2646992c}, intrahash = {bc1404dbc27d92350ef158cd240d4d70}, journal = {Computers {\&} Geosciences}, keywords = {article grasselli mahabadi}, month = feb, number = 2, pages = {241-252}, timestamp = {2019-02-15T20:24:54.000+0100}, title = {{Y-GUI: A graphical user interface and pre-processor for the combined finite-discrete element code, Y2D, incorporating material heterogeneity}}, url = {https://www.sciencedirect.com/science/article/pii/S0098300409003124?via%3Dihub}, volume = 36, year = 2010 }