Volume 29 Issue 1
Apr 2015
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ZHANG Yan-Geng, LOU Jian-Feng, HONG Tao. Modification of Visco Statistical Crack Mechanics for PBXs[J]. Chinese Journal of High Pressure Physics, 2015, 29(1): 9-14. doi: 10.11858/gywlxb.2015.01.002
Citation: ZHANG Yan-Geng, LOU Jian-Feng, HONG Tao. Modification of Visco Statistical Crack Mechanics for PBXs[J]. Chinese Journal of High Pressure Physics, 2015, 29(1): 9-14. doi: 10.11858/gywlxb.2015.01.002

Modification of Visco Statistical Crack Mechanics for PBXs

doi: 10.11858/gywlxb.2015.01.002
  • Received Date: 17 Apr 2013
  • Rev Recd Date: 13 Aug 2013
  • Based on the Viscose-Statistical Crack Mechanics (Visco-SCRAM) model describing the dynamic response of PBXs', a modified model is obtained through changing the value scope of the direction vector of crack surface, the value of initial flaw size and the volumetric constitutive relation.Then the new model is applied in a finite element program.During the simulation process of the plate impact experiment for PBX JO-9159, the influence of crack number density parameter N0 is analyzed.Combined with the experimental data, the results simulated by the original and modified models are compared and analyzed.It is concluded that the modified model describes the damage and failure of PBXs under low-velocity impact more reasonably.

     

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  • [1]
    陈鹏万, 黄风雷.含能材料损伤理论及应用[M].北京: 北京理工大学出版社, 2006: 2-8.

    Chen P W, Huang F L. Damage Theories and Applications of Energetic Materials[M]. Beijing: Beijing Institute of Technology Press, 2006: 2-8. (in Chinese)
    [2]
    Dienes J K. A statistical theory of fragmentation[C]//Kim Y S. Proceedings of the 19th US Symposium on Rock Mechanics. Reno, NV: University of Nevada, Reno, 1978: 51-55.
    [3]
    Addessio F L, Johnson J N. A constitutive model for the dynamic response of brittle materials[J]. J Appl Phys, 1990, 67(7): 3275-3286. doi: 10.1063/1.346090
    [4]
    Bennett J G, Haberman K S, Johnson J N, et al. A constitutive model for the non-shock ignition and mechanical response of high explosives[J]. J Mech Phys Solids, 1998, 46(12): 2303-2322. doi: 10.1016/S0022-5096(98)00011-8
    [5]
    Zuo Q H, Addessio F L, Dienes J K, et al. A rate-dependent damage model for brittle materials based on the dominant crack[J]. Int J Solids Struct, 2006, 43: 3350-3380. doi: 10.1016/j.ijsolstr.2005.06.083
    [6]
    周栋. PBX炸药损伤本构模型研究[D].北京: 北京理工大学, 2007.

    Zhou D. Investigation on the damage constitutive model of PBX[D]. Beijing: Beijing Institute of Technology, 2007. (in Chinese)
    [7]
    Evans A G. Slow crack growth in brittle materials under dynamic loading conditions[J]. Int J Fract, 1974, 10(2): 251-259. doi: 10.1007/BF00113930
    [8]
    Freund L B. Dynamic Fracture Mechanics[M]. Cambridge: Cambridge University Press, 1993.
    [9]
    Chen D N, Fan C L, Xie S G, et al. Study on constitutive relations and spall models for oxygen-free high conductivity copper under planar shock test[J]. J Appl Phys, 2007, 101: 063532. doi: 10.1063/1.2711405
    [10]
    Dienes J K, Kershner J D. Multiple-shock initiation via statistical crack mechanics[C]//Proceedings of 11th International Symposium on Detonation. Snowmass, Colorado: AFRL, 1998: 717-724.
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