Calibration for Machine Deformation for High Temperature Fracture Testing

  • S. K. Ray
  • G. Sasikala
Conference paper


A procedure has been developed for calibrating the non-linear elastic machine deformation and demonstrated for evaluating J at 653 K and 803 K for a modified 9Cr-lMo steel. The calibration procedure involves determining the non-linear elastic relation between machine deformation x m and load (P), from the Px t data for a blank specimen with known elastic compliance C (as measured at the loading pins) deforming in the elastic regime, using the relation x m (p)=x t -C.P (1)




  1. 1.
    Portela, A. and Aliabadi, M.H., Crack Growth Analysis using Boundary Elements, Computational Mechanics Publications, Southampton, 1993.Google Scholar
  2. 2.
    Standard Test Method for Measurement of Fracture Toughness, ASTM E 1820-01, August 2001, American Society for Testing of Materials (ASTM), Philadelphia.Google Scholar

Copyright information

© Springer 2007

Authors and Affiliations

  • S. K. Ray
    • 1
  • G. Sasikala
    • 1
  1. 1.Materials Technology DivisionIndira Gandhi Centre for Atomic ResearchKalpakkamIndia

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