Polymer Mechanics

, Volume 14, Issue 2, pp 227–233 | Cite as

Failure of water-filled cylindrical glass-reinforced epoxy shells under internal impulsive loading

  • V. A. Ryzhanskii
  • V. N. Mineev
  • A. G. Ivanov
  • A. T. Shitov
  • A. P. Zykov
Shells And Plates
  • 30 Downloads

Conclusions

1. The explosive failure of water-filled, geometrically similar glass-reinforced epoxy shells, whose dimensions increase by a factor of 1.5–4.4, is not associated with an energetic scale effect. This is attributable to the imperfect similarity of the shells, since although their dimensions changed, the diameter of the glass reinforcing fibers remained the same.

2. The relative mass of explosive required to fracture the shells is approximately 0.4%. With respect to this index, glass-reinforced epoxy is comparable to structural steels 20 and 17Mn1Si at R0≃160 mm.

3. The circumferential deformation of the shells at failure is about 4% and does not depend on the thickness of the shell wall, the dimensions of geometrically similar shells, or the initial strain rate on the interval 0.21 · 103−1.2 · 103 sec−1. Thin-walled shells begin to fail from the outside surface, thick-walled shells from the inside surface.

4. The modulus of elasticity of the GRE is 2.4 · 105 kgf/cm2 and does not depend on the strain rate on the interval 10−3−1.5 · 103 sec−1. The material deforms elastically up to failure.

Keywords

Epoxy Explosive Structural Steel Scale Effect Relative Mass 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. 1.
    S. M. Kokoshvili, V. P. Tamuzh, and G. S. Shapiro, "Dynamic loading of polymeric materials," Mekh. Polim., No. 2, 326–338 (1970).Google Scholar
  2. 2.
    D. F. Masson, "Reinforced plastic vessels," Engineering, 312–316 (June, 1971).Google Scholar
  3. 3.
    A. G. Ivanov, V. A. Sinitsyn, and S. A. Novikov, "Scale effects in the dynamic loading of structures," Dokl. Akad. Nauk SSSR,194, No. 2, 316–317 (1970).Google Scholar
  4. 4.
    A. G. Ivanov, V. N. Mineev, V. I. Tsypkin, L. I. Kochkin, L. V. Vasil'ev, and O. A. Kleshchevnikov, "Plasticity, fracture, and scale effect in the explosive loading of steel pipes," Fiz. Goreniya Vzryva, No. 4, 603–607 (1974).Google Scholar
  5. 5.
    V. I. Tsypkin, O. A. Kleshchevnikov, A. T. Shitov, V. N. Mineev, and A. G. Ivanov, "Scale effect in the explosive fracture of water-filled vessels," At. Énerg.,38, No. 4, 251–252 (1975).Google Scholar
  6. 6.
    V. I. Tsypkin, A. G. Ivanov, V. N. Mineev, and A. T. Shitov, "Experimental investigation of the effect of scale, geometry, and contained medium on the strength of steel vessels subjected to internal impulsive loading," At. Énerg.,41, No. 5, 303–308 (1976).Google Scholar
  7. 7.
    A. G. Ivanov and V. N. Mineev, "Scale criterion in the brittle fracture of structures," Dokl. Akad. Nauk SSSR,220, No. 3, 575–578 (1975).Google Scholar
  8. 8.
    A. G. Ivanov, "Characteristics of the explosive deformation and fracture of pipes," Probl. Prochn., No. 11, 50–52 (1976).Google Scholar
  9. 9.
    C. R. Hoggatt and R. F. Recht, "Stress-strain data obtained at high rates using an expanding ring," Exp. Mech.,9, No. 10, 441–448 (1969).Google Scholar
  10. 10.
    A. S. Dubovik, Photographic Recording of High-Speed Processes [in Russian], 2nd ed., Moscow (1975).Google Scholar
  11. 11.
    A. G. Ivanov, L. I. Kochkin, L. V. Vasil'ev, and V. S. Kustov, "Explosive fracture of pipes," Fiz. Goreniya Vzryva, No. 1, 127–132 (1974).Google Scholar
  12. 12.
    A. T. Shitov, V. N. Mineev, O. A. Kleshchevnikov, V. I. Tsypkin, and V. A. Ryzhanskii, "Wire strain transducer for continuously recording large strains in structures subjected to dynamic loading," Fiz. Goreniya Vzryva, No. 2, 304–307 (1976).Google Scholar
  13. 13.
    P. Dewhurst, I. B. Hawkyard, and W. Johnson, "A theoretical and experimental investigation of dynamic circular cylindrical expansions in metals," J. Mech. Phys. Solids,22, No. 4, 267–283 (1974).Google Scholar
  14. 14.
    P. I. A. Fuller and I. H. Price, "Dynamic pressure measurements to 300 kbar with a resistance transducer," British J. Appl. Phys.,15, 751–758 (1964).Google Scholar
  15. 15.
    G. I. Kanel', "Use of manganin sensors for measuring pressures associated with the shock compression of condensed media," Preprint, Inst. Khim. Fiz., Akad. Nauk SSSR, Chernogolovka (1973).Google Scholar
  16. 16.
    R. Cole, Underwater Explosions, Peter Smith.Google Scholar

Copyright information

© Plenum Publishing Corporation 1978

Authors and Affiliations

  • V. A. Ryzhanskii
  • V. N. Mineev
  • A. G. Ivanov
  • A. T. Shitov
  • A. P. Zykov

There are no affiliations available

Personalised recommendations