When a cylindrical shell is subjected to dynamic implusive loading in radialdirection and foe ratio of radius-to-thickness exceeds a special value.the cylindricalshell will produce elastic dynamic buckling.This paper which is based on foe results ofsome relative experiments,assumes deformation mode and utilizes Lagrange method toanalyse the elastic pluse buckling of a thin cylindrical shell with a finite length under acosine impulse.The dynamic buckling equations are derived and solved by numericalmethod.The results of calculation are compared with some relative calculation resultswhich were obtained by other authors.
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