Experimental studies of local stability of spherical shells with reinforced holes
- 15 Downloads
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).
Eccentric reinforcement of a central hole may cause a reduction in critical load by 20–30% more than reinforcement without eccentricity.
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).
KeywordsExperimental Study Critical Load Spherical Shell Local Stability Central Hole
Unable to display preview. Download preview PDF.
- 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.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.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.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