AE法によるFRPCの破壊機構の解明に関する研究 : スクリュー形状と樹脂供給方法の影響

概要

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The fracture mechanisms of FRPC (fiber reinforced polycarbonate) composites which are molded using various screw designs and resin feed methods with experimental values for the number of screw rotations are studied by the acoustic emission technique. The optimal screw design and resin feed method are found from the loads P_b and P_c at which changes in the fracture mechanisms are observed by the AE energy gradient method. The specimens which are molded using the screw of lower compression ratio and the direct resin feed show the highest values of loads P_b and P_c, and hence the experimental values for the number of screw rotations are important factors. It is found that the effect of these factors on the tensile strength and loads P_b and P_c can be explained by the shearing stress of melted resin at the metering zone of screw.
一般社団法人日本機械学会の論文
1995-08-25