| Abstract: | The present study aims at developing anew method-Random Microstructure Finite Element Method (RMFEM)for the effective properties of com posite materials . In this method, a random microstructure model is used to simulate the microstructure of the real composite materials. The physical fields in such a random microstructure model under specified boundary and initial conditions are analyzed by finite element method. The ef-fective properties of composite materials can he obtained from the analysis results. As verification, some effective properties of composite materials, such as elastic module, thermal expansion coefficient, thermal conductivity and e-lastoplastic properties, are. investigated by random mi-crostructure finite element method. The numerical results are given together with the experimental data. It is re-vealed that the random microstructure finite element method is a very valid method for the determination of the effective properties of composite materials. |
