AUTOMATIC MESH GENERATION (optimized for multiple core processors)

Line meshing
Finite element analysis uses linear elements with constant cross-section so arced and variable cross-section (tapered) line elements must be divided into parts. This is called line element meshing.

The accuracy of the solution depens on the mesh density.

Domain meshing
A mesh of triangular surface elements can be generated on the selected domains by specifying an average surface element side length for the mesh. Meshing will take into account all the holes, internal lines and points of the domain. Meshes can also follow loads above a certain intensity.

FURTHER MESH REFINEMENT METHODS

Uniform
Lets you refine the entire selected mesh. You must specify the maximum side length of a surface element in the refined mesh.

Bisection
Lets you refine the selected mesh by bisecting the elements as shown in the figure below

Refine mesh around nodes
Lets you refine the mesh around the selected nodes (locally around columns, nodal supports). You must specify a division ratio (0.2-0.8). The command refines the mesh dividing the elements connected to the respective nodes by the defined ratio.

Refine mesh along edges
Lets you refine the mesh along the selected edges (locally along edge supports / loads). You must specify a division ratio (0.2-0.8). The command refines the mesh dividing the elements connected to the respective edges by the defined ratio.

CHECKING FINITE ELEMENT MESH

Program checks the minimum angle of surface finite elements (a). The finite element is heavily distorted if

a ≤ 15 for triangles,
a ≤ 30 for quadrilaterals.