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Volume 29 Issue 4
Sep 2015
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Chinese Journal of High Pressure Physics  > 2015  >  29(4): 299-306.
LI Xiang-Yu, WANG Ma-Fa, DONG Wen-Pu, LIANG Min-Zu. Investigation on the Deformation Shapes of Cylindrical Shell Filled with Soil under Lateral Explosion Loading[J]. Chinese Journal of High Pressure Physics, 2015, 29(4): 299-306. doi: 10.11858/gywlxb.2015.04.010
Citation: LI Xiang-Yu, WANG Ma-Fa, DONG Wen-Pu, LIANG Min-Zu. Investigation on the Deformation Shapes of Cylindrical Shell Filled with Soil under Lateral Explosion Loading[J]. Chinese Journal of High Pressure Physics, 2015, 29(4): 299-306. doi: 10.11858/gywlxb.2015.04.010
shu

Investigation on the Deformation Shapes of Cylindrical Shell Filled with Soil under Lateral Explosion Loading

doi: 10.11858/gywlxb.2015.04.010
  • 1.

    College of Science, National University of Defense Technology, Changsha 410073, China

  • 2.

    School of Mechanical and Aerospace Engineering, NanyangTechnological University, Singapore 639798, Singapore

  • 3.

    State Key Laboratory of Explosion Science and Technology, Beijing institute of Technology, Beijing 100081, China

  • Received Date: 16 Feb 2013
  • Rev Recd Date: 21 May 2013
    Abstract
  • This paper presents brief results of an experimental investigation on deformation shapes of cylindrical shell filled with soil subjected to lateral explosion loading, and the ultimate deformation shapes are obtained.Based on the experimental results, a corresponding analytical model is undertaken by using the plastic hinge theory.In the analytical model, the cylindrical shell is divided into several end-to-end rigid square bars.The deformation shape of cylindrical shell is described by the translation and rotation process of rigid square bars.The expressions of the spring force, moment and deflection angle between adjacent bars are deduced theoretically in detail.In addition, the blast loading conditions are studied in terms of the covering width of outer layer explosive and the initial velocity of cylindrical shell.Theoretical and experimental results show a good agreement, thus the analytical model can be considered as a valuable tool in understanding the deformation mechanism and predicting the deformation shape of cylindrical shell under lateral contact explosion.The various deformation shapes of cylindrical shell can be achieved by modifying the covering width of outer layer explosive and initial velocity of cylindrical shell.

     

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