2006•Natural Science Journal of Xiangtan UniversityRequires access

Dynamic Behavior of Reactive Powder Concrete in Split Hopkinson Pressure Bar Testing

Zhengyu Huang, Yan Wang, Xiao Peng Yan, LU Fang-yun

Abstract

Dynamic Behavior of reactive powder concrete(RPC) is studied by using a split Hopkinson pressure bar.At static state and dynamic state with different impact velocities,a series of compress tests of plain RPC,RPC containing polypropylenefiber and RPC containing steel fiber were carried out.The influence of transverse confinement on dynamic behavior was also studied.From the tests,dynamic compression strengths and the curves of stress-strain history of specimens under different strain rates wereobtained.The dynamic increase factors of specimens were obtained by comparing the dynamic compression strengths with the static one.

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Key concepts: Split-Hopkinson pressure bar, Dynamic range compression, Materials science, Bar (unit), Composite material, Dynamic testing, Compression (physics), Dynamic loading