均質化法による金属含浸カーボン材料の物性評価の妥当性確認

抄録

Most of frictional materials used in railways are constructed from several kinds of materials. Therefore, its material properties largely depend on mesoscopic structure such as ratio, size, shape, and position of each constituent. To clarify the relationship between mesoscopic structure and material properties, the homogenization method using mesoscopic structure model is useful to evaluate equivalent material properties. In this study, as an example of confirming validity of the evaluation by the homogenization method, we compare the calculated material properties with the experimental ones for metal-impregnated carbons. As a result, it is shown that the difference of them is up to 30%. In addition, it is also shown that the dependence of calculated electrical resistivity on metal-ratio is similar to that of experimental ones.