Verification of the linear matching method for limit and shakedown analysis by comparison with experiments

James Ure, Haofeng Chen, David Tipping

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The Linear Matching Method (LMM), a direct numerical method for determining shakedown and ratchet limits of components, has seen significant development in recent years. Previous verifications of these developments against cyclic nonlinear finite element analysis have shown favourable results, and now this verification process is being extended to include comparisons with experimental results.
This paper presents a comparison of LMM analysis with experimental tests for limit loads and shakedown limits available in the literature. The limit load and shakedown limits were determined for pipe intersections and nozzle-sphere intersections respectively, thus testing the accuracy of the LMM when analysing real plant components. Details of the component geometries, materials and test procedures used in the experiments are given. Following this a description of the LMM analysis is given which includes a description of how these features have been interpreted for numerical analysis. A comparison of the results shows that the LMM is capable of predicting accurate yet conservative limit loads and shakedown limits.
LanguageEnglish
Article number031003
Number of pages6
Journal Journal of Pressure Vessel Technology
Volume137
Issue number3
Early online date23 Mar 2015
DOIs
Publication statusPublished - Jun 2015

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Load limits
Experiments
Numerical analysis
Nozzles
Numerical methods
Pipe
Finite element method
Geometry
Testing

Keywords

  • linear matching method
  • limit analysis
  • shakedown analysis
  • experimental assessment

Cite this

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Verification of the linear matching method for limit and shakedown analysis by comparison with experiments. / Ure, James; Chen, Haofeng; Tipping, David.

In: Journal of Pressure Vessel Technology, Vol. 137, No. 3, 031003, 06.2015.

Research output: Contribution to journalArticle

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