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《Explosion and Shock Waves》 1991-02
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FINITE ELEMENT CALCULATION ON ELASTIC-PLASTIC DYNAMIC BUCKLING OF A BAR WITH FINITE INITIAL IMPERFECTION UNDER AXIAL IMPACT

Jie Min(Huazhong University of Science and Technology)  
Using the finite element method, the dynamic buckling of a bar with finite initial imperfection under axial impact is analyzed in this paper. The buckling time is solved through a deformation work dependence buckling criterion. The effects of the shape and magnitude of initial imperfection and impact load on the bucklling time are also calculated.
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