Integrating solid modelling with finite-element analysis

This paper presents an approach to the integration of computer-aided design and finite-element analysis. Starting with a solid modelling system for the definition of the desired structure/component, a modified octree sub-division technique is used for the automatic generation of the finite element meshes. This mesh information, together with the material properties and boundary conditions, is subsequently used as input to a finite-element analysis package. An algorithm for ensuring valid meshes between interface elements is described, and the results of an example run with the system are also presented.