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Chinese Journal of High Pressure Physics  > 2011  >  25(1): 48-54 .
GAI Fang-Fang, PANG Bao-Jun, GUAN Gong-Shun. Quasi-Static Bursting Analysis of Gas-Filled Pressure Vessels on the Front Side under Hypervelocity Impact[J]. Chinese Journal of High Pressure Physics, 2011, 25(1): 48-54 . doi: 10.11858/gywlxb.2011.01.008
Citation: GAI Fang-Fang, PANG Bao-Jun, GUAN Gong-Shun. Quasi-Static Bursting Analysis of Gas-Filled Pressure Vessels on the Front Side under Hypervelocity Impact[J]. Chinese Journal of High Pressure Physics, 2011, 25(1): 48-54 . doi: 10.11858/gywlxb.2011.01.008
shu

Quasi-Static Bursting Analysis of Gas-Filled Pressure Vessels on the Front Side under Hypervelocity Impact

doi: 10.11858/gywlxb.2011.01.008
  • 1.

    Heilongjiang institute of science and Technology, Harbin 150027, China;

  • 2.

    Hypervelocity Impact Research Center, HIT Aerospace Laboratory, Harbin 150080, China

More Information
  • Corresponding author: GAI Fang-Fang
  • Received Date: 20 Oct 2009
  • Rev Recd Date: 07 Dec 2009
  • Publish Date: 15 Feb 2011
    Abstract
  • In a given set of impact velocity conditions, the numerical simulation is performed to analyze the effect of the projectile diameter on perforation of the front wall of gas-filled pressure vessels. Then the critical stress value is estimated based on the stress intensity factor which is determined by simplified linear elastic fracture mechanics, and the computational model is built. The model is presented by postulating the existence of two-radial cracks that emanate at the boundary of a circular hole. The result shows that a good correlation between experimental and computational results is obtained. If the ratio of single crack length to hole radius exceeds the value of 0.5, the hole with radial cracks can be considered as a straight crack. The projectile with small kinetic energy is likely to lead catastrophic burst of pressure vessels.

     

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