Creep Analysis of Smooth Curved Pipes under in-plane Bending
- 1 August 1973
- journal article
- research article
- Published by SAGE Publications in Journal of Mechanical Engineering Science
- Vol. 15 (4) , 252-265
- https://doi.org/10.1243/jmes_jour_1973_015_046_02
Abstract
Theoretical analyses are presented for the behaviour of a smooth circular cross-section thin-walled curved pipe of constant thickness when loaded by in-plane bending moments under isothermal creep conditions. Twin energy analyses, designated type 1 and type 2 respectively, are used in conjunction with an n-power stationary creep constitutive relationship. Approximate solutions are obtained by direct minimization techniques on a computer. Deformation results and stress-concentration factors relevant to the stationary condition based on straight-pipe values are reported for all practical geometries of pipe bends. The influence of the results on design and matters of total deformation and stress redistribution are briefly mentioned.Keywords
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