General interval FEM program based on sensitivity analysis

Today there are many methods for solution of equation with interval parameters [5]. Unfortunately there are very few efficient methods which can be directly applied for solution of complex engineering problems. Sensitivity analysis method [9] gives very good inner approximation of the exact solution set. This method was implemented in C++ language by the author and the program can be recompiled on Windows, Linux and Solaris operating systems. The program is able to solve 1D, 2D and 3D linear problems of electrostatics with interval parameters. Additionally it is possible to solve problems with uncertain functional parameters [10]. In order to do that it is necessary to create special finite elements. It is possible to consider also uncertain shapes The program is very universal and can be applied to the solution of complex engineering problem. The program is a part web application, which is written in php language and can be run on the web page http://andrzej.pownuk.com. AMS subject classification: 74S05, 65G20, 65G40, 65M60