Skip to main content
Log in

Validity assessment of ductile fracture criteria in cold forming

  • Processing
  • Published:
Journal of Materials Engineering and Performance Aims and scope Submit manuscript

Abstract

This paper describes the assessment of various empirical and semiempirical ductile fracture criteria to determine their ability to predict the occurrence of fracture in metalforming processes. The criteria assessed are reformulated such that each is expressed in terms of mostly nondimensional material-dependent quantities and constants. The constants in each criterion are determined using data from published experimental results on cold upsetting of aluminum and steel specimens. The limit strain or the forming limit corresponding to each criterion is then determined and compared with the experimental data. There is clearly good agreement between theory and experiment for several criteria, but the predictions of other criteria fall far from experimental results.

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

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. S.E. Clifi and P. Hartley, Fracture Prediction in Plastics Deformation Processes,Int. J. Mech. Sci., Vol 32 (No. 1), 1990.

  2. M. Oyane, Criteria of Ductile Fracture Strain,Bull. Jpn. Soc. Mech. Eng., Vol 15, 1972, p 1507–1513

    Article  Google Scholar 

  3. M. Oyane, T. Sato, K. Okimoto, and S. Shima, Criteria for Ductile Fracture and Their Applications,J. Mech. Work. Technol., No. 4,1980, p 65-81

  4. A.M. Freudenthal,The Inelastic Behaviour of Solids, John Wiley & Sons, 1950

  5. M.G. Cockcroft and D.J. Latham, Ductility and the Workability of Metals,J. Inst. Met., Vol 96, 1968, p 33–39

    CAS  Google Scholar 

  6. P. Brozzo, B. Deluca, and R. Rendina, A New Method for the Prediction of Formability Limits in Metal Sheets,Proc. 7th Biennial Conf. of the Int. Deep Drawing Research Group, 1972

  7. S.I. Oh and S. Kobayashi,“Theories of Flow and Fracture in Metal-Forming Processes, Part 2: A Theory on Ductile Fracture in Metal-Working Processes,” Technical Report, Air Force Material Laboratory, OH, AFML-TR-76-61,1976

  8. S.I. Oh, C.C. Chen, and S. Kobayshi, Ductile Fracture in Axisymmetric Extrusion and Drawing, Part 2: Workability in Extrusion and Drawing,J. Eng. Ind. (Trans. ASME), Vol 101,1979, p 36–48

    Article  Google Scholar 

  9. K. Osakada and K. Mori, Prediction of Ductile Fracture in Cold Forging,Ann. CIRP, Vol 27,1978, p 135–139

    CAS  Google Scholar 

  10. P. Hartley, S.E. Clift, J. Salimi-Namin, C.E.N. Sturgess, and I. Pillinger, The Prediction of Ductile Fracture Initiation in Metal-forming Using a Finite Element Method and Various Fracture Criteria,Res. Mech., Vol 28, 1989, p 269–293

    CAS  Google Scholar 

  11. I. Pillinger,“The Prediction of Metal Flow and Properties in Three-Dimensional Forging Using the Finite Element Method,” Ph.D. thesis, University of Birmingham, 1984

  12. N.L. Dung, Identification of Defect Locations in Metal-Forming Using a Personal-Computer-Oriented Finite Element Method,Modelling of Metal Forming Processes, J.L Chnot and E. Orate, Ed., Klumer Academic, The Netherlands, 1988, p 245–252

    Chapter  Google Scholar 

  13. G. LeRoy J.D. Embury, G. Edward, and M.F. Ashby, A Model of Ductile Fracture Based on the Nucleation and Growth of Voids,Acta Metall, Vol 29,1981, p 1509–1522

    Article  CAS  Google Scholar 

  14. S. Kivivuori, I. Lahti, and V. Ollilainen, A Computational Method to Estimate the Formability of Cold Forming Steels,Computational Methods for Predicting Material Processing Defects, M. Predeleana, Ed., Elsevier Science, Amsterdam, 1987, p 193–202

    Chapter  Google Scholar 

  15. S.S. Hecker,Formability: Analysis, Modelling and Experimentation, TMS-AIME, 1977, p 150-182

  16. P.F. Thomason,Ductile Fracture of Metals, Pergamon Press, 1990

  17. P.F. Thomason, The Use of Pure Aluminum as an Analogue for the History of Plastic Flow in Studies of Ductile Fracture Criteria in Steel Compression Specimens,Int. J. Mech. Sci., Vol 10,1968, p501–518

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Shabara, M.A., El-Domiaty, A.A. & Kandil, A. Validity assessment of ductile fracture criteria in cold forming. JMEP 5, 478–488 (1996). https://doi.org/10.1007/BF02648845

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02648845

Keywords

Navigation