Advertisement

Elastic-Plastic Failure Analysis for a Rotor Disk with a Surface Crack

  • S. Kanno
  • S. Sakata
  • T. Shimizu
Conference paper

Summary

In order to evaluate a structural integrity of rotating machinary, a roter disk model specimen with an inner surface crack was used for rotating test and J-integral was calculated by the finite element method (FEM). This method can predict that stable crack growth occurs at a rotating speed in which the maximum value of the J-integral along the front of the surface crack becomes greater than the fracture toughness JIC of the disk material. In addition, Two-criteria method was applied to the assessment of rotor disk integrity. It was recognized that the critical speed from Two-criteria assessment agreed well with that from the JIC-criterion.

Keywords

Fracture Toughness Stress Intensity Factor Surface Crack Crack Depth Rotor Disk 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Rice, J.R.,Trans. ASME, Ser. E, 35–2 (1968), 379.CrossRefGoogle Scholar
  2. 2.
    Harrison, R.P. and Milne,I., Phi1. Trans. R.Soc.Lond. A299 (1981), 149.ADSGoogle Scholar
  3. 3.
    Dowling, A.R., Harrison, R.P. and Milne, I., The Welding Institute’s Autumn Conf. on “Fitness for Purpose Validation of Welded Constructions”. 17–19,Nov., (1981),34.Google Scholar
  4. 4.
    ASTM E24 Committee, Standard Method for Determination of Jic, A Measure of Fracture Toughness, (1980)Google Scholar
  5. 5.
    JSME S001, Standard Method of Test for Elastic-Piastic Fracture Toughness Jic, (1981), in Japanese.Google Scholar
  6. 6.
    Miyosi, T. and Shiratori, M., Proc. 4th ICF, 3 (1977), 273.Google Scholar

Copyright information

© Springer Japan 1986

Authors and Affiliations

  • S. Kanno
    • 1
  • S. Sakata
    • 1
  • T. Shimizu
    • 1
  1. 1.Mechanical Engineering Research LaboratoryHitachi, Ltd.Hitachi, Ibaraki, 317Japan

Personalised recommendations