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展示了聚氯乙烯（ＰＶＣ）在不同温度下由试验速率增加而引起的韧脆性转化。随加载速率升高，材料断裂吸收的能量不断降低，低速范围加载的断裂方式以塑性机制为主，而高速加载导致材料脆化。通过热激活分析，获得了该转化过程的定量化关系。该关系初步描述了由于速率和温度引起的韧脆性转化过程。
Shows the ductile-to-brittle conversion of polyvinyl chloride (PVC) at various temperatures caused by an increase in the test rate. With the increase of the loading rate, the energy absorbed by the fracture of the material decreases continuously. The fracture mode of low-speed loading is dominated by the plastic mechanism, while the high-speed loading leads to material embrittlement. Through the heat activation analysis, the quantification of the conversion process was obtained. This relationship initially describes the ductile-to-brittle conversion process due to the rate and temperature.