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Measurement of Velocities of Points on the Outside Surface of a Blast Driven Cylinder Having Varying Thickness

Duan Zhuoping; Yun Shourong; Hong Bing(Mechanical and Engineering Department, Beijing Institute of Technology, Beeijing 100081)  
Through the use of a high sped streak camera, camera the two dimensional Lagrangian velocities of points on the outside surface of a cylinder having varying thickness and driven by detonation, and have obtained history of unshady increase of velocity. Depending upon th assumption of an exponential model of velocity increase,this paper deduces the semiempirical formula for the drived velocity of the cylinfor surface v, the maximum projection angle δ0and the characteristic acceleration time .
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