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ZHENG Bo, WANG An-wen. FINITE ELEMENT CHARACTER-VALUE ANALYSIS FOR DYNAMIC BUCKLING OF BARS UNDER ELASTIC COMPRESSION WAVE[J]. Engineering Mechanics, 2006, 23(12): 36-40.
Citation: ZHENG Bo, WANG An-wen. FINITE ELEMENT CHARACTER-VALUE ANALYSIS FOR DYNAMIC BUCKLING OF BARS UNDER ELASTIC COMPRESSION WAVE[J]. Engineering Mechanics, 2006, 23(12): 36-40.
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FINITE ELEMENT CHARACTER-VALUE ANALYSIS FOR DYNAMIC BUCKLING OF BARS UNDER ELASTIC COMPRESSION WAVE

  • Department of Mechanics, Naval University of Engineering, Wuhan, Hubei 430033, China

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  • Received Date: April 24, 2005
  • Revised Date: October 06, 2005
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  • The finite element character-value method is used to study the dynamic buckling of bars under elastic compression wave. The finite element characteristic equations are derived based on the adjacent-equilibrium criterion. In these equations, the compression wave propagation and the transverse inertia effect are taken into consideration. By using the dynamic buckling supplementary restraint conditions at the compression wave front of bars at the instant of buckling, the critical-load and dynamic buckling modes of bars are calculated from the solutions of the finite element characteristic equations.
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