Experimental Investigations to Yield Stresses Of Porous Materials Made Of Iron Alloy And Bronze
Li Yuyan,Huang Xieqing
(Department of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049,China)

Abstract: 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.
Keywords: yield stress, taylor experiment, porosity, strain rate.