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Numerical damage and life prediction of automotive casting tooling due to low-cycle thermal fatigue*

  • D. Toumbas (a1) and N. Dufaure (a2)

Abstract

The economic challenge for PSA regarding the maintenance of their mould foundry park is to predict and improve its lifespan in preventing any risk of initiation and propagation of cracks in thermal fatigue. A method for assessing the number of cycles of casting tooling thermal fatigue used by PSA was developed using the criterion of Fatemi-Socie [A. Fatemi, D. Socie, Fatigue Fract. Engng. Mater. Struct. 11 (1988) 149-165, D.F. Socie, multiaxial fatigue damage models, ASME 109 (1987) 293-298], associated with a shear failure mode, which predicts the thermal fatigue damage by assessing stress and strain tensors on different facets around any material point.

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References

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[1] M. Salem, V. Velay, M. Cheikh, G. Dour, P. Lamesle, F. Rézai-Aria, Fatigue Life Modelling of Hot Forming Tools, Tooling conference 09, Las Vegas
[2] Fatemi, A., Socie, D., Fatigue Fract. Engng. Mater. Struct. 11 (1988) 149-165
[3] F, Socie D, multiaxial fatigue damage models, ASME 109 (1987) 293-298
[4] Y. Li Lee, J. Pan, R. Hathaway, M. Barkey, Fatigue testing and Analysis, Elsevier
[5] S. Suresh, Fatigue of Materials, Second Edition, Cambridge University Press, 1998

Keywords

Numerical damage and life prediction of automotive casting tooling due to low-cycle thermal fatigue*

  • D. Toumbas (a1) and N. Dufaure (a2)

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