Using objects to handle calculation control in finite element modelling

Interaction between objects in object-oriented finite element systems is an important issue. The technique of using agent objects is described in this paper, and is applied to equation solvers, and to overall calculation control in finite element modelling systems. In particular, the method is used for sub-structure based solution, and in multi-threaded environments. The technique enables control and communication between objects to be handled in a clear and systematic manner.