衝撃付加を受けたポリ塩化ビニルの試験片温度の推定

概要

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Since the deformation process at high strain rate is adiabatic one, the temperature rise caused by plastic work appears in the specimen during the deformation. The temperature rise is a transient phenomenon so that the measurement of the temperature rise is very diffcult. On the one hand, the amorohaus polymer indicates the shape memory effect which is dependent on the test temperature of the polymer spesimen. In this paper, the effect of strain rate on the shape memory effect of poly (vinyl chloride) specimen compressed at various strain rates is investigated experimentally. Eventualy, the naximum temperature rise of the specimen which was impacted longitudinally at one end is deduced using the exoerimental resula described adove. athe results show that the recovering ratio which is the recovering length against the deformed one, decreases with increasing strain rate and it is considered that the temperature of the poly(vinyl chroride) specimen impacted longitudinally at high strain rate of 10^3〜10^4 S^<-1> is adove the glass transition temperature.
社団法人日本材料学会の論文
1990-09-15