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General variable material property formulation for the solution of autofrettaged thick-walled tubes with constant axial strains

Farrahi, G. H ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1115/1.2973239
  3. Publisher: 2008
  4. Abstract:
  5. In this paper a general variable material property (VMP) formulation for the solution of thick-walled tubes with constant axial strains was developed and compared with the alternative VMP method that is called the Hencky program The VMP method was initially developed for the analysis of plane stress and plane strain states. However, the actual autofrettage process is under constant axial strain, i.e., open-end and closed-end conditions. Results indicate very good agreement with the Hencky program. Our method is simple, accurate, and very efficient, so that the number of iterations for convergence reduces approximately to one-tenth of Hencky program iterations. The solution algorithm for plane strain, open-end, and closed-end conditions is the same. Copyright © 2008 by ASME
  6. Keywords:
  7. Strain ; Tubes (components) ; Autofrettage ; Axial strains ; Number of iterations ; Plane strain states ; Plane strains ; Plane stresses ; Program iterations ; Solution algorithms ; Thick-walled tube ; Variable material properties ; VMP method ; Convergence of numerical methods
  8. Source: Journal of Pressure Vessel Technology, Transactions of the ASME ; Volume 130, Issue 4 , 2008 , Pages 0412091-0412097 ; 00949930 (ISSN)
  9. URL: https://asmedigitalcollection.asme.org/pressurevesseltech/article-abstract/130/4/041209/456151/General-Variable-Material-Property-Formulation-for?redirectedFrom=fulltext