The Effect of Peening on the Fatigue Life of 7050 Aluminium Alloy

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DSTO-RR-0208 Clayton J.Q. and Clark G., <strong>The</strong> <strong>Effect</strong> <strong>of</strong> Steel Shot and Glass Bead <strong>Peening</strong> Treatments on the Fatigue Resistance <strong>of</strong> 7050-T76351 Aluminium Alloy, Proc. Aust. Fract. Group, “Fracture Mechanics in Engineering Practice”, Melbourne 1988, pp44-51 Clark G. and Clayton J.Q., <strong>Effect</strong>iveness <strong>of</strong> <strong>Peening</strong> Treatments in Improving Fatigue Resistance <strong>of</strong> 7050 Aluminium Alloy under Constant Amplitude and Spectrum Loading, Aust. Surface Engng Conf., University <strong>of</strong> Sth Australia, 1991 Engineering Sciences Data Unit, Guide to the <strong>Effect</strong> <strong>of</strong> Shot <strong>Peening</strong> on Fatigue Strength, 92015, ESDU, May 1992 Fair G, Noble B and Waterhouse R.B., <strong>The</strong> Stability <strong>of</strong> Compressive Stresses Induced by Shot <strong>Peening</strong> under Conditions <strong>of</strong> fatigue and Fretting Fatigue, Advances in Surface Treatments, Vol 1, Pergamon Press, UK, 1984 Fuchs H.O., Shot <strong>Peening</strong> <strong>Effect</strong>s and Specifications, ASTM STP 196, Am. Soc. Testing Mats., 1956, pp22 Gallardo J.L., Optimum Shot <strong>Peening</strong> Intensity using Ceramic Shot on 7050-T7451 5.675-inch thick Aluminium, Northrop Memo N3881-91-021, 26/2/1991 Graham D., Shot <strong>Peening</strong> <strong>of</strong> the FS488 Bulkhead, ARLENGSTL Report F1/49, January 1986 Hammond D.W. and Meguid S.A., Fatigue Fracture and Residual Stress Relaxation in Shot- Peened Components, Surface Engineering, Elsevier Science Pty Ltd, 1990, pp386-392 Iida K., Dent and Affected Layer produced by Shot <strong>Peening</strong>, ICSP-2 1984, Paramus, N.J., pp283-293 Jaensson B., <strong>The</strong> Influence on the Fatigue Strength <strong>of</strong> Al Alloy parts <strong>of</strong> the relationship between the Surface Residual Stress State and the Load-Induced Stress State, 1 st International Conference on Shot <strong>Peening</strong>, 14-17 September, Paris, Editor Niku-Lari A., Pergamon Press, pp 435-444, 1981 Lambase J., Y488 Bulkhead Fatigue Specimen Failure Analysis, Northrop Memo 3881-90-021, 19/2/1990 Luo W., Noble B and Waterhouse R.B., <strong>The</strong> Interaction between Shot <strong>Peening</strong> and Heat Treatment on the Fatigue and Fretting Fatigue Properties <strong>of</strong> the High Strength Aluminium Alloy 7075, Proc 2 nd Int. Conf. on Impact Treatment Procedure, Editor Meguid S.A., Elsevier Applied Science Publications, Cranfield, September 1986 Luo W., Noble B and Waterhouse R.B, <strong>The</strong> <strong>Effect</strong> <strong>of</strong> Shot <strong>Peening</strong> Intensity on the Fatigue and Fretting Fatigue Behaviour <strong>of</strong> an Aluminium Alloy, Advances in Surface Treatments and Surface Finishing, Vol 5, Pergamon Press, UK, 1987, pp 145-153 50
DSTO-RR-0208 Meguid S.A., <strong>Effect</strong> <strong>of</strong> Partial Coverage upon the Fatigue Fracture Behaviour <strong>of</strong> Peened Components, Fat. Fract. Engng Mater. Struct., Vol 14, No. 5, pp 515-530, 1991 McDonnell Douglas Process Specification, <strong>Peening</strong>, PS 14023 Revision H, MIL-STD-852, Glass Bead <strong>Peening</strong> Procedures, 18 April 1988 MIL-S-13165C, Shot peening <strong>of</strong> metal Parts, 27 November 1991 Mutoh Y., Fair G.H., Noble B. and Waterhouse R.B., <strong>The</strong> <strong>Effect</strong> <strong>of</strong> Residual Stresses Induced by Shot <strong>Peening</strong> on Fatigue Crack Propagation in Two High-Strength Aluminium Alloys, Fatigue Fract. Engng Mater. Struct., Vol 10, No. 4, 1987, pp261-272 Nobre J.P., Kornmeier M., Dias A.M. and Scholtes B., Use <strong>of</strong> the Hole-drilling Method for Measuring Residual Stresses in Highly Shot-peened Surfaces, Experimental Mechanics, Vol 40, No. 3, 2000, pg 289 Olsoon-Jacques C., Residual Stress Pr<strong>of</strong>ile on Shot Peened F/A-18 aluminium Alloy Surfaces” DSTO-TN-0230, 1999 Oshida Y. and Daly J., Fatigue Damage Evaluation <strong>of</strong> Shot Peened High Strength Aluminium Alloy, Surface Engineering, Elsevier Science Pty Ltd, 1990, pp404-416 Roth M and Yanishevsky M, Investigation <strong>of</strong> the <strong>Effect</strong>s <strong>of</strong> Heat Cycles on the Residual Stresses and Fatigue Life <strong>of</strong> Shot Peened 7050-T7451 Al Alloy, Presentation 21 st IFOSTP Technical Review meeting, November 1999 Schutz W., Fatigue Life Improvement <strong>of</strong> High Strength Materials by Shot <strong>Peening</strong>, 1 st International Conference on Shot <strong>Peening</strong>, 14-17 September, Paris, Editor Niku-Lari A., Pergamon Press, pp 423-433, 1981 Simpson R.S., Development <strong>of</strong>f a Mathematical Model for Predicting the Percentage Fatigue Life Increase Resulting from Shot Peened Components, Phase 1, AFWAL-TR-84-3116, April 1985 Sharp P.K. and Clayton J.Q., <strong>The</strong> <strong>Effect</strong> <strong>of</strong> <strong>Peening</strong> on the Fatigue Life <strong>of</strong> Aluminium Alloys, Technical Presentation DSTO, Melbourne, 1993 Sharp P.K., Clayton J.Q. and Clark G., <strong>The</strong> Fatigue Resistance <strong>of</strong> Peened 7050-T7451 Aluminium Alloy - Repair and Re-Treatment <strong>of</strong> a Component Surface, Fatigue Fract. Engng Mater. Struct. Vol 17, No. 3, 1994, pp243-252 Sharp P.K. and Byrnes R., <strong>The</strong> <strong>Effect</strong> <strong>of</strong> Mid-Life <strong>Peening</strong> and Rework on Fatigue Life, DSTO-DDP-164, July 1996 Sharp P.K. and Byrnes R., F/A-18 470.5 Bulkhead Crotch Repair Coupon Tests, DSTO-DDP- 179, July 1996 51
Page 1 and 2:
The Effect
Page 3:
The Effect
Page 7: Contents 1. INTRODUCTION ..........
Page 10 and 11: DSTO-RR-0208 extension method has n
Page 12 and 13: DSTO-RR-0208 Figure 2: A graph illu
Page 14 and 15: DSTO-RR-0208 the total life is long
Page 16 and 17: DSTO-RR-0208 Figure 4: This figure
Page 18 and 19: DSTO-RR-0208 Figure 6: The<
Page 20 and 21: DSTO-RR-0208 Figure 8: The<
Page 22 and 23: DSTO-RR-0208 crack initiate from an
Page 24 and 25: DSTO-RR-0208 Figure 10: SEM photogr
Page 26 and 27: DSTO-RR-0208 550 USN Spectrum (ST-1
Page 28 and 29: DSTO-RR-0208 Table 2: Four point be
Page 30 and 31: DSTO-RR-0208 Figure 15b: Scanning e
Page 32 and 33: DSTO-RR-0208 Research by Fair et al
Page 34 and 35: DSTO-RR-0208 3.2.3 Summary
Page 36 and 37: DSTO-RR-0208 Peak Spectrum Stress (
Page 38 and 39: DSTO-RR-0208 Figure 21b: A typical
Page 40 and 41: DSTO-RR-0208 10 Crack Depth (mm) 1
Page 42 and 43: DSTO-RR-0208 Table 7: The</
Page 44 and 45: DSTO-RR-0208 200 180 160 8A ALMEN 6
Page 46 and 47: DSTO-RR-0208 Figure 28: A schematic
Page 48 and 49: DSTO-RR-0208 Table 9: Residual Stre
Page 50 and 51: DSTO-RR-0208 Like all the structura
Page 52 and 53: DSTO-RR-0208 Y470 X19 pocket Peened
Page 54 and 55: DSTO-RR-0208 4. Discussion
Page 56 and 57: DSTO-RR-0208 5. Conclusion 1. <stro
Page 60 and 61: DSTO-RR-0208 Sharp P.K. and Clark G
Page 62 and 63: DSTO-RR-0208 Figure 23: The
Page 64 and 65: DSTO-RR-0208 A.4. Surface Roughness
Page 66 and 67: UK Defence Research Information Cen
Page 68: Page classification: UNCLASSIFIED D
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The Effect of Peening on the Fatigue Life of 7050 Aluminium Alloy

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