Collapse Tests on Externally Pressurized Toroids-Reference-Cited by-同舟云学术

Collapse Tests on Externally Pressurized Toroids

Published:2003-01-31 Issue:1 Volume:125 Page:91-96
ISSN:0094-9930
Container-title:Journal of Pressure Vessel Technology
language:en
Short-container-title:

Author:

Błachut J.¹

Affiliation:

1. The University of Liverpool, Department of Engineering, Liverpool L69 3GH, UK

Abstract

The paper discusses the load-carrying capacity of toroidal shells with closed circular cross section and loaded by static external pressure. Details about the manufacturing, pre-experiment measurements and testing of three, nominally different, steel toroids are provided. Two of them were manufactured from mild steel by spinning two halves and then welding them around the inner and outer equatorial perimeters. The third one has been assembled by welding four 90-deg stainless elbows. The outer diameter of these models was about 300 mm and the wall thickness varied from 2.0 to 3.0 mm. The hoop radius-to-thickness ratio, r/t, varied from about 15 to 30. The experimental collapse pressures were in the range from 4 to 8 MPa. Comparisons with numerical results are also provided.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Link

http://asmedigitalcollection.asme.org/pressurevesseltech/article-pdf/125/1/91/5516844/91_1.pdf

Reference14 articles.

1. Błachut, J., and Jaiswal, O. R., 2000, “On Buckling of Toroidal Shells Under External Pressure,” Comput. Struct., 77, pp. 233–251.

2. Błachut, J., and Jaiswal, O. R., 1998, “Buckling of imperfect ellipsoids and closed toroids subjected to external pressure,” in “Analysis and Design of Composite, Process and Power Piping and Vessels,” ed., D. K. Williams, ASME, PVP-Vol. 368, pp. 121–128.

3. Błachut, J., and Jaiswal, O. R., 1999, “Instabilities in Torispheres and Toroids Under Suddenly Applied External Pressure,” J. Impact. Eng.,22, pp. 511–530.

4. Jordan, P. F. , 1973, “Buckling of Toroidal Shells Under Hydrostatic Pressure,” AIAA J., 11, pp. 1439–1441.

5. Gouliaev, V. I., Bazenov, V. A., Goculiak, E. A., and Gaidaicuk, V. V., 1990, “Analysis of Complex Shells,” Kiev, Budyvielnik (in Russian).

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