Volume 28 Issue 5
Mar 2015
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CHEN Yong, JI Chong, LONG Yuan, JI Mao-Rong, GAO Fu-Yin, DING Wen. Research on Dynamic Behaviors of Cylindrical Shells with Different Wall-Thickness under Explosion Loading[J]. Chinese Journal of High Pressure Physics, 2014, 28(5): 525-532. doi: 10.11858/gywlxb.2014.05.003
Citation: CHEN Yong, JI Chong, LONG Yuan, JI Mao-Rong, GAO Fu-Yin, DING Wen. Research on Dynamic Behaviors of Cylindrical Shells with Different Wall-Thickness under Explosion Loading[J]. Chinese Journal of High Pressure Physics, 2014, 28(5): 525-532. doi: 10.11858/gywlxb.2014.05.003

Research on Dynamic Behaviors of Cylindrical Shells with Different Wall-Thickness under Explosion Loading

doi: 10.11858/gywlxb.2014.05.003
  • Received Date: 24 Oct 2012
  • Rev Recd Date: 09 Jan 2013
  • Experimental and numerical simulation researches were presented on dynamical behaviors of cylindrical shell structure affected by lateral explosion loading.Impact experiments of explosion loading caused by cylindrical TNT charge on the Q235 steel cylindrical shells with different wall-thicknesses were carried out.The deformation modes of cylindrical shells were analyzed under explosion conditions with different charges and stuctures.These deformation modes include local dent mode(Mode Ⅰ), coupling of local dent and whole bending mode (Mode Ⅱ), whole strcture collapse mode (Mode Ⅲ) and coupling of local perforation and whole strcture collapse mode (Mode Ⅳ).By means of the finite element computer code LS-DYNA, the nonlinear dynamic response process of the cylindrical shells subjected to explosion loading were numerically simulated with Lagrangian-Eulerian coupling method.The deformation process of the cylindrical shells and the final modes were described.The numerical simulation results are in good agreement with experimental data.The results provide a reference for the classification of explosion damage and the design of explosion-resisting structures.

     

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