Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Dynamic toughness: Fracture mechanics interpretation of the drop-weight (NDT) test

  • 119 Accesses

  • 7 Citations


The possibility of estimatingK Id at the NDT from the crack geometry and load conditions used in the drop-weight (NDT) test has been re-examined. Theory and experiment support the usefulness of the relationK Id yd = 0.075 □m at the NDT temperature.


On ré-examine les possibilités d'estimer la valeur deK Id à la température NDT déterminée par l'essai drop-weight en se basant sur la géométrie de la rupture et sur les conditions de la mise en charge.

L'approche théorique et les résultats expérimentaux souiignent la pertinence de la relation.K Id yd = 0.0075 m 1 2 à la température NDT, dans le cas des aciers de qualité navale.

This is a preview of subscription content, log in to check access.


  1. [1]

    D.R. Ireland, Proposed standard method of test for impact testing of precracked Charpy specimens of metallic materials, Effects Technology, Inc., Calif. ( ).

  2. [2]

    ASTM Standard E-208, Conducting drop-weight test to determine nil-ductility transition temperature of ferritic steels (1969, reapproved 1975).

  3. [3]

    G.R. Irwin, J.M. Krafft, P.C. Paris and A.A. Wells, NRL Rep. 6598 Washington, D.C. (1967).

  4. [4]

    F.J. Loss and W.S. Pellini, NRL Rep. 6913 Washington, D.C. (1969).

  5. [5]

    D. Broek,Elementary Engineering Fracture Mechanics, Noordhoff International, Leyden (1974).

  6. [6]

    P.M. Scott and T.W. Thorpe,Fatigue of Engineering Materials and Structures 4 (1981) 291.

  7. [7]

    S.T. Rolfe and J.M. Barsom,Fracture and Fatigue Control in Structures, Prentice-Hall, N.J. (1977) 86.

  8. [8]

    A.K. Shoemaker and S.T. Rolfe,Engineering Fracture Mechanics 2 (1971) 319.

  9. [9]

    F.J. Loss (ed.), NRL Rep. 8006, Washington, D.C. (1976).

  10. [10]

    R.E. Dolby and G.G. Saunders,The Toughness of Weld Heat—Affected Zones, Seminar Handbook, The Welding Institute, Abington, U.K. (1975) 43.

  11. [11]

    L.W. Loechel, The effect of testing variables on the transition temperature in steel. Martin Marietta Corp. Report MCR 69-189, Lab Records Dept., ORNL, Oak Ridge, Tenn. 37830 (1969).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Tyson, W., Harbec, J. Dynamic toughness: Fracture mechanics interpretation of the drop-weight (NDT) test. Int J Fract 25, 133–141 (1984). https://doi.org/10.1007/BF01141556

Download citation


  • Mechanical Engineer
  • Civil Engineer
  • Fracture Mechanic
  • Load Condition
  • Mechanic Interpretation