Abstract
This paper presents a elasto-plastic FEM program for two-dimensional problems based on the incremental theory. Today, current commercial FEM programs have been used as a versatile tool for simulating engineering problems. However, most of the programs have many commands and FEM beginners are sometimes puzzled as to how to use the commands. While the versatile FEM program is very powerful, the program requires not only computer resources but is also quite expensive. Therefore, we will propose a new compact elasto-plastic FEM program for FEM beginners. Our FEM program has GUI interface on pre-post processing and is so designed to have various user-friendly interfaces. To demonstrate the versatility of our FEM program, we applied to the interference fit of shaft and bearing where the plastic deformation arises.