PRIMER 22.1

Cobweb Mesh

Cobweb Mesh

The Cobweb mesh feature creates a 'cobweb' mesh pattern. This is sometimes used in areas where crack propagation needs to be modelled at impact points (for example a head impact on a windscreen).

The input parameters are a number of cylinders and their radii, the element size you want to use for each cylinder and the element size used outside the cylinders. In the menu on the right the element size gets smaller towards the centre.


When you have the correct parameters use Pick to choose a centre point or type in a centre point into the Centre point textbox. PRIMER will then automatically select shells around the hole to remesh similarly to creating a hole and show the cylinders and centre point on the mesh. See the following image for an example.

Add shells and Remove shells can be used to alter the selection if required. You can also adjust any of the parameters if required. When you are happy with the properties pressing Apply will create a preview of the mesh that PRIMER will create. To actually create the mesh press Confirm .

An example of a cobweb mesh (with the parameters from the above example) is shown in the following image.