Applied Mathematics and Mechanics (English Edition) ›› 1995, Vol. 16 ›› Issue (6): 607-610.

• Articles • Previous Articles    

A SIMPLIFIED OVER-STRESS ANALYTICAL MODEL OF THE DYNAMIC BUCKLING OF A PERFECTLY PLASTIC COLUMN UNDER AXIAL IMPACT

Jie Min   

  1. Dept. of Mech. Huazhong Univ. of Sci & Tech. Wuhan 430074. P. R.China
  • Received:1994-08-10 Online:1995-06-18 Published:1995-06-18
  • Supported by:

    Project supported by the SFY of HUST of China.

Abstract: This paper introduces the strain-rate effects in the analysis of dynamic buckling of a perfectly plastic cohoumn. The corresponding differential equation of dynamics is deduced. The expressions of half-wave length of buckling mode. critical load and time of buckling are obtained. Discussion on the strain-rate effect on the plastic dynamic buckling of a column is presented. The results of this paper are compared with those of the theory and experiment in[4]

Key words: strain rate effect, perfectly plastic, column dynamic buckling

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