Determination of residual stresses in autofrettaged compound tubes for different geometries

Mohammadi, M ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1115/PVP2007-26628
  3. Publisher: 2008
  4. Abstract:
  5. In this paper, using numerical solutions of bore and outer radius hoop residual stresses in various tube geometries for autofrettage prior to shrink fit and shrink fit prior to autofrettage design are investigated, and the results are compared with monobloc autofrettaged and shrunk fit tubes. Both of the former compound tubes induce more compressive bore hoop residual stresses than a monobloc autofrettage and shrunk fit case. Furthermore, in geometries in which maximum bore hoop residual stresses are induced, the outer radius experiences acceptably low tensile residual stresses. Bore hoop residual stresses increase with increase of tube outer radius; however the rate of increasing decreases. Copyright © 2007 by ASME
  6. Keywords:
  7. Autofrettage ; Shrink fit ; Compressive strength ; Computer simulation ; Pressure vessels ; Tensile stress ; Residual stresses
  8. Source: 2007 ASME Pressure Vessels and Piping Conference, PVP 2007, San Antonio, TX, 22 July 2007 through 26 July 2007 ; Volume 5 , 2008 , Pages 53-61 ; 0277027X (ISSN); 0791842835 (ISBN); 9780791842836 (ISBN)
  9. URL: https://asmedigitalcollection.asme.org/PVP/proceedings-abstract/PVP2007/42835/53/323453