A Multi-Level Low Cycle Fatigue Damage Model for Forging Die Material


Article Preview

The forging die material, a high strength steel designated W513 is considered in this paper. A fatigue damage model, based on thermodynamics and continuum damage mechanics, is constructed in which both the previous damage and the loading sequence are considered. The unknown material parameters in the model are identified from low cycle fatigue tests. Damage evolution under multi-level fatigue loading is investigated. The results show that the fatigue life is closely related to the loading sequence. The fatigue life of the materials with low fatigue loading first followed by high fatigue loading is longer than that for the reversed loading sequence.



Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho






S. Gao and E. Werner, "A Multi-Level Low Cycle Fatigue Damage Model for Forging Die Material", Materials Science Forum, Vols. 514-516, pp. 804-809, 2006

Online since:

May 2006





[1] Araujo, J.A. and Nowell, D. (2002), Inter. J. Fat., 24: 763-775.

[2] Bernhart, G., Moulinier, G., Brucelle, O. and Delagnes, D., (1999), Inter. J. Fat., 21: 179-186.

[3] Ringsberg, J.W., (2001), Inter. J. Fat., 23: 575-586.

[4] Kachanov, L.M., (1986), Introduction to continuum damage mechanics, Nijhoff, Netherlands.

[5] Krajcinovic, D., (1984), App. Mech. Review, 37: 1-6.

[6] Krajcinovic, D., (1996), Damage Mechanics, Elsevier Science Publishers, North-Holland.

[7] Lemaitre, J., (1992), A Course on Damage Mechanics, Spring-Verlag, Berlin.

[8] Lemaitre, J. and Chaboche, J.L., (1990), Mechanics of Solid materials, Cambridge University Press, Cambridge.

[9] Murakami, S., (1988), J. App. Mech., 55: 280-286.

[10] Chaboche, J.L., (1988), J. App. Mech., 55: 59-72.

[11] Chaboche, J.L. and Lesne, P.M., (1988), Fat. Fract. Engng. Struct., 11: 1-17.

[12] Dufailly, J.D. and Lemaitre, J., (1995), Inter. J. Dam. Mech., 4: 153-170.

[13] Lemaitre, J. and Semage, J.P., (1997), Comp. Mech., 20: 84-88.

[14] Miner, M.A., (1945), J. App. Mech., 12: A158-A164.

[15] Shang, D.G. and Yao, W.X., (1999), Inter. J. Fat., 21: 187-194.

In order to see related information, you need to Login.