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Chinese Journal of High Pressure Physics  > 2006  >  20(1): 67-78 .
Zhou Hui, Wen He-Ming. Dynamic Cylindrical Cavity Expansion Model and Its Application to Penetration Problems[J]. Chinese Journal of High Pressure Physics, 2006, 20(1): 67-78 . doi: 10.11858/gywlxb.2006.01.014
Citation: Zhou Hui, Wen He-Ming. Dynamic Cylindrical Cavity Expansion Model and Its Application to Penetration Problems[J]. Chinese Journal of High Pressure Physics, 2006, 20(1): 67-78 . doi: 10.11858/gywlxb.2006.01.014
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Dynamic Cylindrical Cavity Expansion Model and Its Application to Penetration Problems

doi: 10.11858/gywlxb.2006.01.014

  • Laboratory for Mechanical Behaviour and Design of Materials, University of Science and Technology of China, Hefei 230027, China

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  • Corresponding author: Wen He-Ming
  • Received Date: 06 Dec 2004
  • Rev Recd Date: 18 Jan 2005
  • Publish Date: 05 Mar 2006
    Abstract
  • Dynamic cylindrical cavity expansion model and its application to penetration problems were studied. Both incompressible and compressible bilinear strain-hardening material models were considered. First, solutions for dynamic cylindrical cavity expansion (DCCE) are obtained in terms of the velocity of plastic wave front, radial stress distribution and stress on the cavity surface. The influence of material properties such as compressibility, elastic-plastic constitutive equations and plastic modulus is discussed. Based on the DCCE models, penetration equations are then constructed. Comparison with experimental penetration data shows reasonable agreement between theory and experiment. It also shows that material properties such as plastic modulus have considerable effects on the dynamics cavity expansion and its resistance to penetration.

     

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