铁合金和青铜多孔材料屈服应力的实验研究

对铁合金和青铜多孔材料做静态实验和Taylor冲击实验,得到静态屈服应力和孔隙率以及动态屈服应力和应变率的变化规律,同时将静动态载荷作用下的多孔材料的本构方程与实验结果进行了对比,发现理论分析和实验研究有良好的一致性,表明本文采用的模型基本能满足实际工程应用。

Experimental Investigations to Yield Stresses Of Porous Materials Made Of Iron Alloy And Bronze

The experimental investigations were presented for static and dynamic yield stresses of porous materials made of iron alloy and bronze.The relations between porosity and static yield stress,strain rate and dynamic yield stress were achieved.Simultaneously the constitutive relations for porous materials under static loading and dynamic loadings were compared with the experiments.It is indicated that the applied models coincide with the experimental investigations very well to satisfy the engineering requirements.