But in general Scaling is recommended for normal case. Dec 12, 2017. Wall/frame building) by using ETABS and PERFORM 3D with the same meshing. Etabs 2017:some of the differences here with etabs 2016. By decode bd. Play next; play now; general quadrilateral floor mesh in etabs v17 by decode bd.
Finite Element Analysis (FEA) provides a reliable numerical technique for analyzing engineering designs. The process starts with the creation of a geometric model.
Then, the program subdivides the model into small pieces of simple shapes called elements connected at common points called nodes. The process of subdividing the model into small pieces is called meshing. Finite element analysis programs look at the model as a network of interconnected elements.Meshing is a crucial step in design analysis. The software automatically creates a mixed mesh of solid, shell and beam elements. The solid mesh is appropriate for bulky or complex 3D models. Shell elements are suitable for thin parts (like sheet metals).
Beam elements are suitable for structural members.The accuracy of the solution depends on the quality of the mesh. In general, the finer the mesh the better the accuracy. The generated mesh depends on the following factors:. Created geometry. Active Mesh options.
Mesh control. Contact conditions. Global element size and mesh tolerance.
Etabs 2018
The software suggests a global element size and tolerance. The global element size refers to the average length of an element edge. The number of elements increases rapidly by using a smaller global element size.
Solid MeshAll solid models mesh with solid (tetrahedral) elements.Shell MeshSurface geometries and sheet metals with uniform thickness mesh with triangular shell elements. Sheet metals defined in a drop test study mesh with solid elements.Beam MeshStructural members and weldments mesh with beam elements. You can treat an extrusion (meshes with solid elements by default) as a beam by right-clicking on the solid icon and selecting Treat as Beam.Mixed MeshWhen different geometries are present in the same model, a mixed mesh is generated.