Journal of Materials Science

, Volume 9, Issue 5, pp 737–743 | Cite as

Stress wave emission and plastic work of notched specimens

  • K. Ishikawa
  • H. C. Kim


The stress wave energy released from notched specimens of structural steel was measured in order to compare it with the recently proposedJ-integral which takes account of the effect of large plastic deformation around the crack tip in ductile materials. Very close agreement was observed between theJ-integral and the differential stress wave energy released. This suggests that the increment of the stress wave energy released is proportional to the decrement of the work done on the specimen during tensile testing under the plane stress condition.

This result, combined with information obtained from linear elastic fracture mechanics, leads to a relationship between the differential stress wave energy released and the stress intensity factorK, [Δ(SWER)/Δa] ∝K2. It was also found that in the region before general yielding, the stress wave energy release was proportional to the development of plastic zone size. A larger portion of the accumulated stress wave energy released was generated after general yielding due to void formation and coalescence. The accumulated stress wave energy released at the catastrophic crack growth point reached virtually the same value for each specimen, independent of the initial crack length. This implies that void formation and coalescence are not influenced by the initial crack length, but by the geometry of the crack tip.


Plastic Zone Stress Wave Linear Elastic Fracture Mechanic Zone Size Plane Stress Condition 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    H. C. Kim, A. P. Ripper Neto andR. W. B. Stephens,Nature, Physical Science 237 (1972) 78.Google Scholar
  2. 2.
    Idem, ibid 241 (1973) 68.Google Scholar
  3. 3.
    J. R. Rice,J. Appl. Mech. 35 (1968) 379.Google Scholar
  4. 4.
    Idem, ‘Fracture” (edited by H. Liebowitz) Vol. 2 (Academic Press, New York, 1968) p. 191.Google Scholar
  5. 5.
    A. A. Griffith,Phil. Trans. Roy. Soc. A221 (1921) 163.Google Scholar
  6. 6.
    J. D. Landes andJ. A. Begley, ASTM STP 541 (1972) 24.Google Scholar
  7. 7.
    J. Kaiser,Arkich für Eisenhüttenw. 24 (1953) 43.Google Scholar
  8. 8.
    H. L. Dunegan, D. O. Harris andC. A. Tatro,Eng. Fract. Mech. 1 (1968) 105.Google Scholar
  9. 9.
    R. J. Bucci, P. C. Paris, J. D. Landes andJ. R. Rice, ASTM STP (1972) 40.Google Scholar
  10. 10.
    W. W. Gerbrich andC. E. Hartbower,Int. J. Fract. Mech. 3 (1963) 185.Google Scholar
  11. 11.
    I. G. Palmer andP. T. Heald,Mater. Sci. Eng. 11 (1973) 181.Google Scholar
  12. 12.
    B. A. Bilby andK. H. Swinden,Proc. Roy. Soc. (Lond.) A285 (1965) 23.Google Scholar
  13. 13.
    R. F. Smith andJ. F. Knott, Proc. Conf. on Application of Fracture Mechanics to Pressure Vessel Technology (Institution of Mechanical Engineers, London, 1971) p. 65.Google Scholar
  14. 14.
    H. C. Kim, to be published.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1974

Authors and Affiliations

  • K. Ishikawa
    • 1
  • H. C. Kim
    • 1
  1. 1.Department of Physics, Chelsea CollegeUniversity of LondonUK

Personalised recommendations