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A Test Method Used for the Study on Dynamic Behavior of Porous Materials

There is certain difficulty in determining the dynamic properties of metallic porous materials by using the SHPB technique due to special properties of these materials. In order to identify the initial dynamic collapse strength and “plateau” stress and investigate the effect of strain rate and the effect of velocity by tests, a direct impact device is designed based on the current SHPB experimental device in the present paper. The direct impact device is dynamically calibrated .The transfer function h(t) is given by using the deconvolution in inverse analysis with computer simulation. The data processing system is performed and an efficient method to investigate the dynamic behavior of metallic porous materials is afforded.