Research Article
Feb 1964
Tests of Cylindrical Shells in the Plastic Range
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VIEW THE REPLYAuthors: Guiliano Augusti and Salvatore d'AgostinoAuthor Affiliations
Publication: Journal of the Engineering Mechanics Division
Volume 90, Issue 1
Abstract
Nine mild-steel cylindrical shells, with built-in ends, were subjected to a slowly increasing uniform radial pressure. All the shells had the same mean diameter and thickness, while the length varied; the yield stress, σo was obtained from bending tests. The rigid-plastic collapse varied, respectively, for the longest and shortest shell. The experimental load-displacement diagrams showed, on the contrary, that (a) the rate of deformation increased rather abruptly at a pressure of approximately 2 H σo/R, practically independent of the length; and (b) the ultimate strength of the shells was much larger than the rigid-plastic collapse value. The elastic deformability prior to complete yielding explains point (a), and the large deformation effect and strain-hardening account for point (b). However, no procedure is yet available to account for these factors, and it may be an interesting line for future research. Meanwhile, 2H σo/R should be assumed as the limit pressure for the design of cylindrical shells and pipes subjected to radial pressure only.
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Published In
Journal of the Engineering Mechanics Division
Volume 90 • Issue 1 • February 1964
Pages: 69 - 81
Copyright
© 1964 American Society of Civil Engineers.
History
Published in print: Feb 1964
Published online: Feb 3, 2021
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Guiliano Augusti
Asst. Lecturer, Theory of Structures, Univ. of Naples, Naples, Italy
Salvatore d'Agostino
Asst. Lecturer, Steel Construciions, Univ. of Naples, Naples, Italy
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