Effect of Surface Properties on the Fatigue Life of Manufactured Parts: Experimental Analysis and Multi-Axial Criteria

Abstract:

The effects of machined and treated surface characteristics on the fatigue strength were analyzed on the basis of experimental results related to AISI D2 ground surface and AA 5083-H111 hammered surface. The fatigue strength improvement resulting from controlled grinding and mechanical surface treatment was discussed on the basis of the beneficial effect of the work hardening and the stabilized residual stress. A numerical procedure using F.E.M for calculating residual stress and work hardening evolution under cyclic loading has been developed. The validation of the numerical procedure was carried out by comparing the calculated residual stress profiles to those resulted from XRD measurements. The multi-axial criterion accounting for the work hardening and the residual stress was used to predict the fatigue life of notched samples.

• Periodical: Advanced Materials Research (Volume 996)
• Pages: 715-721
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.996.715
• Online since: August 2014
• Authors: Habib Sidhom*, Naoufel Ben Moussa, Brahim Ben Fathallah, Naziha Sidhom, Chedly Braham
• Keywords: Fatigue, Multi-Axial Criteria, Numerical Simulation, Residual Stress, Work Hardening

References

[1] Fathallah R, Laamouri A, Sidhom H, Braham C. High cycle fatigue behavior prediction of shot-peened parts. International Journal of Fatigue. 2004; 26: 1053-67.

DOI: 10.1016/j.ijfatigue.2004.03.007

[2] Fathallah R, Sidhom H, Braham C, Castex L. Effect of surface properties on high cycle fatigue behaviour of shot peened ductile steel. Materials Science and Technology. 2003; 19: 1050-6.

DOI: 10.1179/026708303225003027

[3] Sidhom N, Laamouri A, Fathallah R, Braham C, Lieurade HP. Fatigue strength improvement of 5083 H11 Al-alloy T-welded joints by shot peening: experimental characterization and predictive approach. International Journal of Fatigue. 2005; 27: 729-45.

DOI: 10.1016/j.ijfatigue.2005.02.001

[4] Sidhom N, Braham C, Lieurade HP. Fatigue life evaluation of shot peened al-alloys 5083 H11 T-welded joints by experimental and numerical approaches. Welding in the World. 2007; 51: 50-7.

DOI: 10.1007/bf03266548

[5] Terres MA, Sidhom H. Fatigue life evaluation of 42CrMo4 nitrided steel by local approach: Equivalent strain-life-time. Materials & Design. 2012; 33: 444-50.

DOI: 10.1016/j.matdes.2011.04.047

[6] Makhlouf K, Sidhom N, Khlifi A, Sidhom H, Braham C. Low cycle fatigue life improvement of AISI 304 by initial and intermittent wire brush hammering. Materials & Design. 2013; 52: 1088-98.

DOI: 10.1016/j.matdes.2013.06.065

[7] Ghanem F, Braham C, Sidhom H. Influence of steel type on electrical discharge machined surface integrity. Journal of Materials Processing Technology. 2003; 142: 163–73.

DOI: 10.1016/s0924-0136(03)00572-7

[8] Ghanem F, Fredj NB, Sidhom H, Braham C. Effects of finishing processes on the fatigue life improvements of electro-machined surfaces of tool steel. The International Journal of Advanced Manufacturing Technology. 2011; 52: 583-95.

DOI: 10.1007/s00170-010-2751-y

[9] Benedetti M, Bortolamedi T, Fontanari V, Frendo F. Bending fatigue behaviour of differently shot peened Al 6082 T5 alloy. International Journal of Fatigue. 2004; 26: 889-97.

DOI: 10.1016/j.ijfatigue.2003.12.003

[10] Benedetti M, Fontanari V, Monelli BD. Plain fatigue resistance of shot peened high strength aluminium alloys: Effect of loading ratio. Procedia Engineering. 2010; 2: 397-406.

DOI: 10.1016/j.proeng.2010.03.044

[11] Benedetti M, Fontanari V, Scardi P, Ricardo CLA, Bandini M. Reverse bending fatigue of shot peened 7075-T651 aluminium alloy: The role of residual stress relaxation. International Journal of Fatigue. 2009; 31: 1225-36.

DOI: 10.1016/j.ijfatigue.2008.11.017

[12] Ben Fredj N, Ben Nasr M, Ben Rhouma A, Sidhom H, Braham C. Fatigue life improvements of the AISI 304 stainless steel ground surfaces by wire brushing. Journal of materials engineering and performance. 2004; 13: 564-74.

DOI: 10.1361/15477020420819

[13] Laamouri A, Sidhom H, Braham C. Evaluation of residual stress relaxation and its effect on fatigue strength of AISI 316L stainless steel ground surfaces: Experimental and numerical approaches. International Journal of Fatigue. 2013; 48 109-21.

DOI: 10.1016/j.ijfatigue.2012.10.008

[14] Dalaei K, Karlsson B, Svensson LE. Stability of shot peening induced residual stresses and their influence on fatigue lifetime. Materials Science and Engineering: A. 2011; 528: 1008-15.

DOI: 10.1016/j.msea.2010.09.050

[15] Sidhom N, Sidhom H, Braham C, Lédion J. Effects of brushing and shot-peening residual stresses on the fatigue resistance of machined metal surfaces: experimental and predicting approaches. Materials Science Forum: Trans Tech Publ; 2011. pp.290-5.

DOI: 10.4028/www.scientific.net/msf.681.290

[16] Lemaitre J, Chaboche J. Mécanique des matériaux solides. Dunod, Paris. (2001).