Creep Continuum Damage Mechanics—Studies of Size Effects and Weldments

  • F. R. Hall
  • D. R. Hayhurst
Conference paper
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)

Summary

The paper summarizes the development of constitutive equations for creep Continuum Damage Mechanics, CDM, in metals; and solution methods are discussed for notched and cracked specimens which are identical in geometry, but different in size; and, for weldments which include three material zones. In both cases it is shown that, to achieve accurate predictions, it is essential to use constitutive equations, which accurately reflect the underlying physics of the dominant processes.

Keywords

Steam Cane 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Hayhurst, D.R.: Creep Rupture Under Multi-Axial States of Stress, J. Mech. Phys. Solids, 20, (1972), 381–390.CrossRefGoogle Scholar
  2. [2]
    Hayhurst, D.R., Dimmer, P.R., Chernuka, M.W.: Estimates of the Creep Rupture Lifetime of Structures Using the Finite Element Method, J. Mech. Phys. Solids, 23, (1975), 335–355.MATHCrossRefGoogle Scholar
  3. [3]
    Hayhurst D.R., Leckie, F.A., Morrison, C.J.: Creep Rupture of Notched Bars, Proc. R. Soc. London., A, 360, (1978), 243–264.CrossRefGoogle Scholar
  4. [4]
    Hayhurst D.R.: Stress redistribution and Rupture Due to Creep in a Uniformly Stretched Thin Plate Containing a Circular Hole, J. Appl. Mech., 40, (1973), 244–250.CrossRefGoogle Scholar
  5. [5]
    Hayhurst, D.R., Brown, P.R., Morrison, J.: Creep Crack Growth, Phil. Trans. R. Soc. Lond., A, 311, (1984), 130–158.Google Scholar
  6. [6]
    Hall, F.R.: Development of Continuum Damage Mechanics Models to Predict the Creep Deformation and Failure of High Temperature Structures, PhD. Thesis, University Sheffield, (1990)Google Scholar
  7. [7]
    Hayhurst, D.R., Storakers, Creep Rupture of the Andrade Shear Disk, Proc. R. Soc. London., A, 349, (1976), 369–375.CrossRefGoogle Scholar
  8. [8]
    Cocks, A.C.F., Ashby, M.F.: On Creep Function by Void Growth, Progress in Materials Science, 27, (1982), No.34, 189–244.CrossRefGoogle Scholar
  9. [9]
    Leckie, F.A., Hayhurst, D.R.: Constitutive Equations for Creep Rupture, Acta metall., 25, (1977), 1059–1072.CrossRefGoogle Scholar
  10. [10]
    Hayhurst, D.R., Morrison, C.J., Brown, P.R.: Creep Crack Growth, Creep in Structures, 1980 (IUTAM Symposium, Leicester, UK) (ed. A.R.S. Ponter & D.R. Hayhurst), p.564, (1981), Berlin: Springer-Verlag.Google Scholar
  11. [11]
    Hayhurst, D.R., Dimmer, P.R., Morrison, C.J.: Development of Continuum Damage in the Creep Rupture of Notched Bars, Phil. Trans. R. Soc. Lond., A, 311, (1984), 103–129.CrossRefGoogle Scholar
  12. [12]
    Hall, F.R., Hayhurst, D.R.: Modelling of Grain Size Effects in Creep Crack Growth using Non-local Continuum Damage Approach, (in press)Google Scholar
  13. [13]
    Coleman, M.C., Parker, J.D., Walters, D.J.: The Behaviour of Ferntic Weldments in Thick Section 0.5 Cr., 0.5 Mo., 0.25 V, Pipe at Elevated Temperature, Int. J. Pres. Ves. & Piping, 18, (1985), 277–310.CrossRefGoogle Scholar
  14. [14]
    Cane, B.J.: Collaborative Programme on the Correlation of Test Data for High Temperature Design of Welded Steam Pipes. Presentation and Analysis of Material Data, CEGB Lab. Note No. RD/L/210IN81, March (1981)Google Scholar
  15. [15]
    Dunne, F.P.E., Othman, A.M., Hall, F.R., Hayhurst, D.R.: Representation of Uni-Axial Creep Curves using Continuum Damage Mechanics, To Appear, I. J. Mech. Sci. (1990)Google Scholar
  16. [16]
    Hall, F.R., Hayhurst, D.R.: Creep Continuum Damage Mechanics. Modelling of High Temperature Deformation and Failure in a Pipe Weldment, (in press).Google Scholar

Copyright information

© Springer-Verlag, Berlin Heidelberg 1991

Authors and Affiliations

  • F. R. Hall
    • 1
  • D. R. Hayhurst
    • 2
  1. 1.I.R.C. in Materials for High PerformanceUniversity of BirminghamUK
  2. 2.Department of Mechanical and Process EngineeringUniversity of SheffieldUK

Personalised recommendations