加载速率对两类不同材料力学性能影响程度的分析

The Influence Degree of Loading Rate on Mechanical Properties of Two Different Materials

通过对低碳钢（塑性材料）和铸铁（脆性材料）在各级加载速率下的拉伸试验。

This paper analyses the difference of influence degree of loading rate on the mechanical properties of the two different materials through stretch experiment of mild steel (plastic material) and cast iron (brittle material) at different levels of loading rate. Key wrods: mild steel, cast iron, loading rate, mechanical properties