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On the shakedown analysis of welded pipes

Li, Tianbai and Chen, Haofeng and Chen, Weihang and Ure, James (2011) On the shakedown analysis of welded pipes. International Journal of Pressure Vessels and Piping, 88 (8-9). pp. 301-310. ISSN 0308-0161

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Abstract

This paper presents the shakedown analysis of welded pipes subjected to a constant internal pressure and a varying thermal load. The Linear Matching Method (LMM) is applied to investigate the upper and lower bound shakedown limits of the pipes. Individual effects of i) geometry of weld metal, ii) ratio of inner radius to wall thickness and iii) all material properties of Weld Metal (WM), Heat Affected Zone (HAZ) and Parent Material (PM) on shakedown limits are investigated. The ranges of these variables are chosen to cover the majority of common pipe configurations. Corresponding individual influence functions on the shakedown limits are generated. These are then combined to allow the creation of a safety shakedown envelope, which can be used for the design of any welded pipes within the specified ranges. The effect of temperature dependent yield stress (in PM, HAZ and WM) on these shakedown limits is also investigated.

Item type: Article
ID code: 34321
Keywords: shakedown, reverse plasticity limit, ratchet limit, limit load, welded pipe, Mechanical engineering and machinery, Mechanics of Materials, Materials Science(all), Mechanical Engineering
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Depositing user: Pure Administrator
Date Deposited: 07 Oct 2011 18:21
Last modified: 18 Jun 2015 00:26
Related URLs:
URI: http://strathprints.strath.ac.uk/id/eprint/34321

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