R-RIM材の動的破壊じん性(<小特集>強化プラスチックス小特集)

概要

論文の詳細を見る
"The dynamic fracture toughness of reinforced reaction injection molding polyurethane was experimentally studied using an instrumented impact tensile tester. In this paper, the effects of void diameter, void distribution and fiber content on the dynamic fracture toughness were discussed. The results obtained are summarized as follows. (1) Dynamic fracture toughness, K_d, decreased almost linearly with increasing void content irrespective of fiber content. (2) For the same void content, K_d was minimum at 5% of fiber content, beyond which it increased with fiber content. (3) K_d Of R-RIM material was found to be lower than that of glass fiber reinforced polycarbonate (FRPC) but the energy release rate of a-RIM material was higher than that of FRPC. Thus, the R-RIM material has good energy absorption capacity.
社団法人日本材料学会の論文
1984-01-15