I have a program that generates mesh for given 3d models. The generated mesh must use quadrangle elements.
It is required to add "shell elements generation capabilities". The requirement is as follows:
The mesh generator must have the ability to mesh "shell elements". Shell elements are two-dimensional elements that are created by meshing surfaces with zero-thickness. Shell elements are elements in a mesh that do not form a closed surface. The geometry examples provided are all closed volumes. An example of shell elements can be seen here -http://images.machinedesign.com/images/archive/closer0300jpg_00000036105.jpg
I don't know what are shell elements, how are they generated. Thanks for any help