EFG
Element Free Galerkin Method (EFG) is applied for the materials made of rubber or foam that undergo large deformations. The adaptive EFG formulation is the method of choice for the efficient simulation of cutting, bulk forming and forging processes. In particular, the new features of local mesh refinement in combination with the implicit time integration are the key enablers for these processes.
- Advantage
- High order accuracy and smoothness in solution field
- No need of hourglass control
- Current implementation
- 2D plain strain & axisymmetric
- 3D solid and shell
- FEM mesh automatically converted as EFG input
- Pressure smoothing in 3D solid
- Adaptivity
- Thermal-mechanical coupling
- Explicit and implicit analysis
- Limitation
- Not suitable for material failure analysis
- Application
- Bulk forming, forging & extrusion (EFG solid with adaptivity)
- Sheet metal forming & crashworthiness (EFG shell)
