Soviet Applied Mechanics

, Volume 3, Issue 8, pp 85–90 | Cite as

Experimental investigation of dynamical stability of spherical segments

  • R. G. Surkin
  • B. M. Zuev
  • S. G. Stepanov
Article
  • 14 Downloads

Abstract

The results of stability tests are presented for impact loading, by uniform pressure of liquid, of nearly 150 spherical segments clamped along the boundary and made of rolled sheet material (steel, brass) by hydraulic drawing. The modes of postbuckling states are considered, dependent on the height of the center of the segment. Experimental dynamical coefficients of overload are determined for testpieces tested. The relationships are written for the dynamic pressure and the dimensions of buckling depending on time. The formation and development of the dents under impact loads are recorded by means of high-speed photography. The stress stare of individual testpieces is determined. The relationship is established between the coefficient of dynamical overload and the rate of loading, the energy of impact and the geometrical parameters of the shell.

Keywords

Experimental Investigation Geometrical Parameter Photography Dynamic Pressure Dynamical Stability 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    V. V. Bolotin, Dynamic Stability of Elastic Systems [in Russian], Gostekhizdat, Moscow, 1956.Google Scholar
  2. 2.
    V. V. Bolotin, “The stability of a thin-walled spherical shell under periodic pressure,” collection: Strength Calculations, No. 2 [in Russian], Mashgiz, Moscow, 1958.Google Scholar
  3. 3.
    A. S. Vol'mir, Stability of Elastic Systems [in Russian], Fizmatgiz, Moscow, 1963.Google Scholar
  4. 4.
    R. G. Surkin and S. G. Stepanov, “Experimental investigation of the stability of spherical segments subjected to uniformly distributed pressure,” Prikladnaya, mekhanika, vol. 9, no.6, 1963.Google Scholar
  5. 5.
    B. Budiansky and R. Roth, Axisymmetric Dynamic Buckling of Clamped Shallow Spherical Shells, NASA, TN D-1510, 1962.Google Scholar
  6. 6.
    J. S. Humphreys, R. S. Roth, and J. Zatlers. Experiments on Dynamic Buckling of Shallow Spherical Shells under Shock Loading, AIAA Journal, vol. 3, No. 1, 1965.Google Scholar
  7. 7.
    M. A. Medick, Initial Response of an Elastic Spherical Shell upon Impact with a Compressible Fluid. Proc. 4-th US Nat. Congr. Appl. Mech., Berkeley, California, 1962.Google Scholar

Copyright information

© Consultants Bureau 1971

Authors and Affiliations

  • R. G. Surkin
    • 1
  • B. M. Zuev
    • 1
  • S. G. Stepanov
    • 1
  1. 1.Kazan Physicotechnical InstituteAS USSRKazanUSSR

Personalised recommendations