<b>Evaluation of Material Properties of Pantograph Contact Strip by Microscopic Structure Model</b>

Most frictional materials used in railways are made of composite material, and their macroscopic material properties largely affected by microscopic structure. It is useful to clarify the relationship between structure numerical simulation for effective improvement or development materials. In this study, we developed an image-based model using X-ray computed tomography a metalized carbon pantograph contact strip evaluated its Young's modulus, thermal conductivity electrical resistivity based on homogenization method. The calculated were more consistent with experimentally measured values than estimated classical Voigt model. We also introduce analysis result stress, temperature current density distribution