Community Research and Development Information Service - CORDIS

Abstract

Making a finite element code easier to maintain is achieved by further modularizing it. Due to its two levels of modularity (of procedures and data), object-oriented programming is the method of choice. In this paper its potential is investigated in two bottlenecks of finite element programming, where, so far, it has not proved significantly more successful than classical Fortran programming. The first of these is the lack of adequate data structures between the analysis specifications and the basic objects of the finite element method, like the element and the node. This is solved by defining two classes of objects, namely Problem and Domain, with clearly differentiated specifications. The second gap deals with solving linear equation systems. Introducing an intermediate class Unassembled Matrix allows alternative storage/solving schemes to be implemented in a very flexible manner.

Additional information

Authors: DUBOIS-PÈLERIN Y, JRC Ispra (IT);PEGON P, JRC Ispra (IT)
Bibliographic Reference: Article: Communications in Numerical Methods in Engineering (1996)
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