Finite Element Method And Visual Software Development

The finite element method is the production combined among the engineering science, calculation method and technique of computer. Because of the elasticity in processing the boundary problem of complex area. FFM already become an effective numerical analysis method in engineering.In this paper, mathematics model about plane FEM of engineering science is established, introducing the main content, basic theory and method of FEM. And the interpolation function about the equal parameter element of triangle and quadrangle, four-node equal parameter element and the method of forming the element stiffness matrix and global stiffness matrix are discussed deeply.The visual problem of processing the plane of FEM is discussed. Supplying the visual preceding processing graphics flat and basic graphics system that use VC++ OOP. Introducing the character and excellence of OOP.At last, demonstrate the software by an example.The several main achievements:1 , Analysis the triangular elements by area coordinate, in the quadrangular elements by equal parameter transform, reduce calculated complexity, standardize the computation procession: It can advance the accuracy of FEM equation by interpolation function, and attain ideal effect through less mesh dissection.2 , The development and application of software are finished basically.