Strength of Materials

, Volume 11, Issue 4, pp 408–410 | Cite as

Experimental studies of local stability of spherical shells with reinforced holes

  • V. S. Gudramovich
  • I. A. Diskovskii
Scientific-Technical Section

Conclusions

  1. 1.

    Stiffening of a reinforced central hole may lead to a critical load the same (ω < 0.4) as for a uniform section or greater (0.4 < ω < 0.675).

     
  2. 2.

    Eccentric reinforcement of a central hole may cause a reduction in critical load by 20–30% more than reinforcement without eccentricity.

     
  3. 3.

    With eccentric reinforcement deformation connected with departure from the flat of a reinforcing ring occurs with a load 23–45% of the critical load, and with reinforcement without eccentricity at 66.7–78% of the critical load (data given for n = 6–8).

     

Keywords

Experimental Study Critical Load Spherical Shell Local Stability Central Hole 

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Literature cited

  1. 1.
    V. S. Gudramovich and I. A. Diskovskii, “Local stability of spherical shells,” Dokl. Akad. Nauk SSSR,232, No. 6, 1285–1288 (1977).Google Scholar
  2. 2.
    V. I. Mossakovskii, V. S. Gudramovich, et al., “Contact problem for reinforced cylindrical shells embedded in a circular base (bed-plate),” Raschet Prostranstvennykh Konstruktsii, No. 11, 53–72 (1967).Google Scholar
  3. 3.
    V. S. Gudraminovich and I. A. Diskovskii, “Experimental study of the stability of spherical shells with holes during local loading,” in: Eleventh All-Union Conference on the Theory of Shells and Plates [in Russian], Tez. Dokl., Moscow (1977).Google Scholar
  4. 4.
    V. S. Gudramovich and I. A. Diskovskii, “Equipment for experimental study of strength and stability of thin-wall shell systems with local loads,” in: Strength and Reliability of Structures [in Russian], Naukova Dumka, Kiev (1977), pp. 30–37.Google Scholar

Copyright information

© Plenum Publishing Corporation 1979

Authors and Affiliations

  • V. S. Gudramovich
  • I. A. Diskovskii

There are no affiliations available

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