Infrared Evaluation of Heat Generation During the Cyclic Deformation of a Cellular Al Alloy

Abstract

Heat generation from a notch during the compression-compression fatigue of a cellular Al alloy has been measured and compared with a model. The measurements indicate that heat is generated because of hysteresis occurring in narrow cyclic plastic zones outside the notch. This process continues until the notch closes. At closure, a brief period of heat generation arises because of friction along the notch faces. A plasticity model based on the Dugdale zone is shown to provide a reasonably accurate characterization of the heat generated, with the proviso that an “ineffective” zone be transposed onto the notch tip. It is found that the temperatures generated are too small to cause fatigue by thermal softening. A fatigue mechanism based on either geometric softening of the cells or crack growth in the cell walls is implied.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    Y. Sugimura, A. Rabiei, A.G. Evans, Material Science and Engineering A, 269, 38 (1999).

    Article  Google Scholar 

  2. 2.

    A. Harte, N. A. Fleck, and M. F. Ashby, Acta Mater., 47, 2511 (1999).

    CAS  Article  Google Scholar 

  3. 3.

    Κ. M. Flores and R. H. Dauskardt, J. Mater. Res. 14, 638 (1999).

    CAS  Article  Google Scholar 

  4. 4.

    A. T. Zehner and A. J. Rosakis, J. Mech. Phys. Solids, 39, 385 (1991).

    Article  Google Scholar 

  5. 5.

    S. Suresh, Fatigue of Materials, Cambridge University Press (1991).

    Google Scholar 

  6. 6.

    Μ. N. Riddell, G. P. Koo and J. L. O'Toole, Polymer Engineering and Sciences, 6, 363 (1967).

    Article  Google Scholar 

  7. 7.

    Y. Sugimura, J. Meyer, Μ. Y. He, H. Bart-Smith, J. Grenestedt and A. G. Evans, Acta Mater., 45, 5245 (1997).

    CAS  Article  Google Scholar 

  8. 8.

    A. Simone and L. A. Gibson, Acta Mater., 46, 2139 (1998).

    CAS  Article  Google Scholar 

  9. 9.

    A. G. Evans, J. W. Hutchinson and M. F. Ashby, Prog. Material Science, 43, 171 (1998).

    CAS  Article  Google Scholar 

  10. 10.

    V. S. Deshpande and N. A. Fleck, submitted to J. Mech. Phys. Solids (1998).

    Google Scholar 

  11. 11.

    J. R. Rice in Fracture, Volume II (ed. H. Liebowitz) Academic Press, New York, 191 (1968).

    Google Scholar 

  12. 12.

    H. Tada, P. C. Paris and G. R. Irwin, The Stress Analysis of Cracks Handbook, to be published by ASME.

  13. 13.

    M. F. Ashby, A. G. Evans, N. A. Fleck, L. J. Gibson, J. W. Hutchinson, H. G. Wadley, Metal Foam Design Guide, Butterworth / Heineman, in Press.

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to A. Rabiei.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Rabiei, A., Hutchinson, J.W. & Evans, A.G. Infrared Evaluation of Heat Generation During the Cyclic Deformation of a Cellular Al Alloy. MRS Online Proceedings Library 591, 143–151 (1999). https://doi.org/10.1557/PROC-591-135

Download citation