Meshing Toolbox in FEMAP
Quickly and interactively edit geometry and create quality mesh using the Femap Meshing Toolbox
The Meshing Toolbox is a centralized collection of Femap’s geometry clean-up and meshing functionalities in a single pane.
Below you will find an overview and demonstration of the included tools.
Geometry Editing Tools
Feature Suppression allows you to suppress loops, curves, and surfaces. Suppressed geometry still exists in the model and can be restored at any time.
This tool is used to make relatively basic alterations to Geometric “features”. Examples include modifying the position of a hole, boss, or rib, changing the length/width of an extension or entire part, revolving a face to create an angled wall, or extending a revolved body, etc.
Different operations require using the different Surface Selection Methods to select appropriate surfaces to be successful. Also, specifying a “realistic” translation or rotation vector is required.
Combined / Composite Curves
In some cases, combining serveral smaller curves along the edge of a surface will allow you to create a higher quality mesh on the surface. This tool allows you to combine curves by choosing the curves themselves or a point that two curves share.
A “composite curve” will be created in FEMAP, which will be used for mesh sizing purposes instead of the underlying curves. There are also options for splitting a composite curve at a selected point or removing any of the underlying curves.
Combined / Boundary Surfaces
You may want to combine several surfaces into a “boundary surface”, such as when there are sliver surfaces next to a much larger surface. By combining the selected surfaces into one boundary surface, all of the internal curves can be ignored during the meshing process.
Boundary surfaces can be created by selecting a curve shared by multiple surfaces or choosing the surfaces themselves. Also, any underlying surface can be removed from a boundary surface or split along a curve.
There may be times when you would like to make small changes to an existing mesh simply by moving one or several nodes without changing the number of elements. This tool will allow you to do that while making sure that, as you move the node or nodes dynamically, they remain attached to specified solids, surfaces, and curves. If you have no geometry, it will follow the overall topology of the selected standalone mesh.
There are also options to move the selected nodes by a defined amount, continually smooth the mesh as the nodes are moved, and allow the moved nodes to no longer be attached to surfaces or curves.
Surface Mesh Quality
When the Mesh Quality Toggle in the Meshing Toolbox is set to “on”, this tool allows you to graphically see an element quality value plotted on each element similar to a contour/criteria plot.
There are several different element quality types which can be selected and each type has default automatic values, but user-defined values can also be specified. Also, the minimum and maximum quality values for the specififed “quality type” are listed in the bottom fields.
Other checks available in Femap allow you to verify:
- There are no discontinuities in the model by viewing free edges and faces – something that cannot be checked just by looking at the model
- Check coincident elements and nodes which can also be indicators of discontinuities
- Load checking by summing forces
- Mass property checking