Shakedown limit of elbow pipe under coupled cyclic thermal-mechanical loading based on the LMM.
In: International Journal of Pressure Vessels & Piping, Jg. 199 (2022-10-01), S. N.PAG
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Zugriff:
In this paper, the linear matching method (LMM) is used to study the shakedown limit of elbow pipes under coupled cyclic mechanical-thermal load. Firstly, the thermal stress analyses of elbow pipes under constant internal pressure and cyclic temperature load are investigated. Further, the shakedown limits of the elbow pipes are calculated using the LMM. For the verification purposes, step-by-step inelastic analyses are performed, showing different structure responses under different loading conditions. All the obtained results indicate that the LMM is able to simulate large range of coupled cyclic mechanical-thermal loading conditions with high computational efficiency, and provide shakedown limit with high accuracy. In addition, the effects of bend angles, mean radius to wall thickness ratio (r / t) and five load conditions on the shakedown behavior are also presented. • Elbow pipes under mechanical-thermal load is calculated by FEA. • The shakedown limits of 90° and 135° elbow pipes are determined by LMM. • Influence of different factors on shakedown limits is studied. [ABSTRACT FROM AUTHOR]
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Shakedown limit of elbow pipe under coupled cyclic thermal-mechanical loading based on the LMM.
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Autor/in / Beteiligte Person: | Chen, Xiaohui ; Liu, Yang ; Zhu, Lin ; Lang, Lang ; Chen, Haofeng |
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Zeitschrift: | International Journal of Pressure Vessels & Piping, Jg. 199 (2022-10-01), S. N.PAG |
Veröffentlichung: | 2022 |
Medientyp: | academicJournal |
ISSN: | 0308-0161 (print) |
DOI: | 10.1016/j.ijpvp.2022.104747 |
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