Split Hopkinson Bar

A split Hopkinson bar machine is a testing apparatus used to measure the mechanical properties of materials under high strain rates. It consists of two cylindrical bars, one with a striker that generates a compressive stress pulse when it impacts the other bar, between which a sample material is placed. The response of the material is measured using sensors to determine its deformation and stress behavior, providing insights into its strength, ductility, and fracture toughness. The machine is particularly useful in studying materials under impact or explosion events and is widely used in fields such as aerospace, defense, and automotive engineering.

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