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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2003> 12(3): 273-277
CHEN Peng wan, HUANG Feng lei, DING Yan sheng. Experimental Study of the Impact Damage of Composition B and Plastic Bonded Explosive[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2003, 12(3): 273-277.
Citation: CHEN Peng wan, HUANG Feng lei, DING Yan sheng. Experimental Study of the Impact Damage of Composition B and Plastic Bonded Explosive[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2003, 12(3): 273-277.
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Experimental Study of the Impact Damage of Composition B and Plastic Bonded Explosive

  • 1.

    State Key Laboratory of Explosion and Safety Science, Beijing Institute of Technology, Beijing100081, China

  • 2.

    Institute of Mechanics, Chinese Academy of Sciences, Beijing100080, China

Funds:theNationalNaturalScienceFoundation(10002022)andJointFoundationofChineseNaturalScienceCommitteeandChineseAcademyofEngineeringPhysics(10076021)
  • Received Date:2002-07-09
    Abstract
  • A long pulse low velocity gas gun with a gas buffer is used to induce impact damage in cast Composition B and hot pressed PBXN 5. To obtain different damage states, a range of projectile velocities are used by controlling the launching pressure of gas gun. The stress history during impact loading is recorded. Various methods are used to characterize the damage state of impacted explosive samples. The microstructure is examined by use of scanning electronic microscopy (SEM) and polarized light microscopy (PLM). The densities and ultrasonic attenuation are also measured. The results show that both Composition B and PBXN 5 exhibit some damage characteristics of brittle materials. However, due to the difference in compositions, PBXN 5 exhibits better resistance to impact loading than Composition B.
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