Thursday, August 27, 2015

Finite Element Analysis : Meshing | Basics

Finite Element Analysis : Meshing 

Generally a finite element model consists of a mesh of nodes and elements. In the Meshing task, we shall:
  • define the mesh size directly on edges, curves, surfaces, or volumes
  • generate one dimensional elements called beam elements on edges and curves
  • generate two-dimensional elements, such as thin shell elements, on surfaces or sections
  • generate solid, three-dimensional elements in volumes or solid body
The best way to create a mesh is directly on the part's geometry. Finite element model would be associated with the part, so the software updates the mesh to reflect any change to the part. You can also use geometry-based meshes for geometry-based optimization.

There are separate softwares like Hypermesh dedicated only for meshing with many advanced options that makes the meshing task very easy and fast.

If the accuracy and complexity of the FEA analysis requirement is average, then you can go for integrated FEA applications along with CAD software like Catia, NX , Solidedge etx.

But if the mesh model is very huge, then you should opt for an analysis specific software.