Stress Ratio and Notch Effect on Fatigue Crack Initiation and Propagation in 2024 Al-alloy
This study reports an empirical investigation of
fatigue crack initiation and propagation in 2024 T351 aluminium
alloy using constant amplitude loading. In initiation stage, local
strain approach at the notch was used and in stable propagation stage
NASGRO model was applied.
In this investigation, the flat plate of double through crack at hole
is used. Based on experimental results (AFGROW Database), effect
of stress ratio, R, is highlights on fatigue initiation life (FIL) and
fatigue crack growth rate (FCGR). The increasing of dimension of
hole characterizing the notch effect decrease the fatigue life.
[1] Glinka G. Residual stress in fatigue and fracture: Theoretical analyses
and experiments. In Niku-Lari A., Editor, Advances in Surfaces
Treatments, pp 413-454. Pergamon Press, 1987. Residual stresses,
volume 4.
[2] Topper, T. H., Wetzel, R. M., and Morrow, J., "Neuber-s Rule Applied
to Fatigue of Notched Specimens," J. Mater., Vol. 4, No. 1, pp. 200-209,
1969.
[3] Dabell, B. J., Hill, S. J., Eaton, D. E., Watson, P., "Fatigue life
prediction for notched components," Journal of the Society of
Environmental Engineers, Vol. 16, No. 4, pp. 3-11, 1977.
[4] Truchon, M., "Application of low-cycle fatigue test results to crack
initiation from notches, low-cycle fatigue and life prediction," ASTM
STP 770, C. Amzallag, B. N. Leis, and P. Rabbe, (Eds.), American
Society for Testing and Materials, pp. 254-268, 1982.
[5] Glinka, G., "A notch stress-strain analysis approach to fracture crack
growth". Engineering Fracture Mechanics, Vol. 21, No. 2, pp. 245-261,
1985.
[6] Socie, D. F., "Fatigue-life prediction using local stress-strain concept,"
experimental mechanics, Vol. 17, pp. 50-56, 1977.
[7] Zheng X. "On some basic problems of fatigue research in engineering",
Int. J. Fatigue 2001; 23:751-66.
[8] Khan, Z., Rauf, A. and Younas, M., Prediction of fatigue crack
propagation life in notched members under variable amplitude loading,"
Journal of Materials Engineering and Performance, Vol. 6, No. 3, pp.
365-373, 1997.
[9] Zheng M, Niemi E, Zheng X. An energetic approach for predict fatigue
crack initiation life of LY 12 CZ aluminum and 16 Mn steel.Theor Appl
Fract Mech 1997; 26:23-8.
[10] F.J. McMaster, D.J. Smith, International Journal of Fatigue 23, S93-
S101, (2001)
[11] C.S. Kusko, J.N. Dupont, A.R. Marder, "Influence of stress ratio on
fatigue crack propagation behavior of stainless steel welds". Welding
Journal, February 2004, 59S-64S, (2004)
[12] C.A. Rodopoulos, J. H. Choi, E.R. de los Rios, J.R. Yates. "Stress ratio
and the fatigue damage mapÔÇöPart II: The 2024-T351 aluminium alloy".
International Journal of Fatigue 26 (2004) 747-752.
[13] S. Pearson. "Initiation of fatigue crack in commercial aluminium alloys
and the subsequent propagation of very short cracks". Engineering
Fracture Mechanic 1975, Vol. 7, pp. 235-247.
[14] M. Zheng, J.H. Luo, X.W. Zhao, Z.Q. Bai, R. Wang. "Effect of predeformation
on the fatigue crack initiation life of X60 pipeline steel".
International Journal of Pressure Vessels and Piping 82 (2005) 546-552.
[15] J.C. Grosskreutz, C.G Shaw. "Critical mechanisms in the development
of fatigue cracks in 2024 T4 aluminum". Proc. 2nd Int. Conf. on
Fracture, Brighton (1969).
[16] H.Huth and D.Sch├╝tz, The collection and analysis of fatigue damage
occurring in aircraft in service, Royal Aircraft Establishment Library
Translation 1934, Farnborough, UK, August 1977.
[17] Robert R. Fujczak. "Effects of R-ratio on crack initiation at external
discontinuities in autofrettaged cylinders". Experimental Mechanics_9,
June 1984. pp 122-128.
[18] N. Ranganathan, H. Aldroe, F. Lacroix, F. Chalon, R. Leroy, A. Tougui.
"Fatigue crack initiation at a notch". International Journal of Fatigue 33
(2011) 492-499.
[19] Tuegel, E., "Strain-life crack initiation life software, provided by
analytical processes and engineered solutions (AP/ES)", Inc., 1996.
[20] Harter, J.A, "AFGROW users guide and technical manual: AFGROW
for Windows 2K/XP". Version 4.0011.14, Air Force Research
Laboratory.
[21] Neuber, H., "Theory of stress concentration for shear-strained
prismatical bodies with arbitrary nonlinear stress-strain law," Trans.
ASME, Journal of Applied Mechanics, pp. 544-550, Dec 1960.
[22] Peterson, R.E., "Stress concentration factors," John Wiley and Sons,
1974.
[23] Hall, L.H. et al., "Fracture and Fatigue of surface flaws and flaws
originating at fastener holes," Volume 1, AFFDL-TR-74-47, 1973.
[24] Coffin, L.F., "A study of effects of cyclic thermal stresses on a ductile
metal". Transactions of the ASME, vol. 76, pp. 931-950, 1954.
[25] Newman, J.C., 1984, "A crack opening stress equation for fatigue crack
growth". International Journal of Fracture, 24(3), R131-135.
[1] Glinka G. Residual stress in fatigue and fracture: Theoretical analyses
and experiments. In Niku-Lari A., Editor, Advances in Surfaces
Treatments, pp 413-454. Pergamon Press, 1987. Residual stresses,
volume 4.
[2] Topper, T. H., Wetzel, R. M., and Morrow, J., "Neuber-s Rule Applied
to Fatigue of Notched Specimens," J. Mater., Vol. 4, No. 1, pp. 200-209,
1969.
[3] Dabell, B. J., Hill, S. J., Eaton, D. E., Watson, P., "Fatigue life
prediction for notched components," Journal of the Society of
Environmental Engineers, Vol. 16, No. 4, pp. 3-11, 1977.
[4] Truchon, M., "Application of low-cycle fatigue test results to crack
initiation from notches, low-cycle fatigue and life prediction," ASTM
STP 770, C. Amzallag, B. N. Leis, and P. Rabbe, (Eds.), American
Society for Testing and Materials, pp. 254-268, 1982.
[5] Glinka, G., "A notch stress-strain analysis approach to fracture crack
growth". Engineering Fracture Mechanics, Vol. 21, No. 2, pp. 245-261,
1985.
[6] Socie, D. F., "Fatigue-life prediction using local stress-strain concept,"
experimental mechanics, Vol. 17, pp. 50-56, 1977.
[7] Zheng X. "On some basic problems of fatigue research in engineering",
Int. J. Fatigue 2001; 23:751-66.
[8] Khan, Z., Rauf, A. and Younas, M., Prediction of fatigue crack
propagation life in notched members under variable amplitude loading,"
Journal of Materials Engineering and Performance, Vol. 6, No. 3, pp.
365-373, 1997.
[9] Zheng M, Niemi E, Zheng X. An energetic approach for predict fatigue
crack initiation life of LY 12 CZ aluminum and 16 Mn steel.Theor Appl
Fract Mech 1997; 26:23-8.
[10] F.J. McMaster, D.J. Smith, International Journal of Fatigue 23, S93-
S101, (2001)
[11] C.S. Kusko, J.N. Dupont, A.R. Marder, "Influence of stress ratio on
fatigue crack propagation behavior of stainless steel welds". Welding
Journal, February 2004, 59S-64S, (2004)
[12] C.A. Rodopoulos, J. H. Choi, E.R. de los Rios, J.R. Yates. "Stress ratio
and the fatigue damage mapÔÇöPart II: The 2024-T351 aluminium alloy".
International Journal of Fatigue 26 (2004) 747-752.
[13] S. Pearson. "Initiation of fatigue crack in commercial aluminium alloys
and the subsequent propagation of very short cracks". Engineering
Fracture Mechanic 1975, Vol. 7, pp. 235-247.
[14] M. Zheng, J.H. Luo, X.W. Zhao, Z.Q. Bai, R. Wang. "Effect of predeformation
on the fatigue crack initiation life of X60 pipeline steel".
International Journal of Pressure Vessels and Piping 82 (2005) 546-552.
[15] J.C. Grosskreutz, C.G Shaw. "Critical mechanisms in the development
of fatigue cracks in 2024 T4 aluminum". Proc. 2nd Int. Conf. on
Fracture, Brighton (1969).
[16] H.Huth and D.Sch├╝tz, The collection and analysis of fatigue damage
occurring in aircraft in service, Royal Aircraft Establishment Library
Translation 1934, Farnborough, UK, August 1977.
[17] Robert R. Fujczak. "Effects of R-ratio on crack initiation at external
discontinuities in autofrettaged cylinders". Experimental Mechanics_9,
June 1984. pp 122-128.
[18] N. Ranganathan, H. Aldroe, F. Lacroix, F. Chalon, R. Leroy, A. Tougui.
"Fatigue crack initiation at a notch". International Journal of Fatigue 33
(2011) 492-499.
[19] Tuegel, E., "Strain-life crack initiation life software, provided by
analytical processes and engineered solutions (AP/ES)", Inc., 1996.
[20] Harter, J.A, "AFGROW users guide and technical manual: AFGROW
for Windows 2K/XP". Version 4.0011.14, Air Force Research
Laboratory.
[21] Neuber, H., "Theory of stress concentration for shear-strained
prismatical bodies with arbitrary nonlinear stress-strain law," Trans.
ASME, Journal of Applied Mechanics, pp. 544-550, Dec 1960.
[22] Peterson, R.E., "Stress concentration factors," John Wiley and Sons,
1974.
[23] Hall, L.H. et al., "Fracture and Fatigue of surface flaws and flaws
originating at fastener holes," Volume 1, AFFDL-TR-74-47, 1973.
[24] Coffin, L.F., "A study of effects of cyclic thermal stresses on a ductile
metal". Transactions of the ASME, vol. 76, pp. 931-950, 1954.
[25] Newman, J.C., 1984, "A crack opening stress equation for fatigue crack
growth". International Journal of Fracture, 24(3), R131-135.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:53705", author = "N. Benachour and A. Hadjoui and M. Benachour and M. Benguediab", title = "Stress Ratio and Notch Effect on Fatigue Crack Initiation and Propagation in 2024 Al-alloy", abstract = "This study reports an empirical investigation of
fatigue crack initiation and propagation in 2024 T351 aluminium
alloy using constant amplitude loading. In initiation stage, local
strain approach at the notch was used and in stable propagation stage
NASGRO model was applied.
In this investigation, the flat plate of double through crack at hole
is used. Based on experimental results (AFGROW Database), effect
of stress ratio, R, is highlights on fatigue initiation life (FIL) and
fatigue crack growth rate (FCGR). The increasing of dimension of
hole characterizing the notch effect decrease the fatigue life.", keywords = "Fatigue crack growth, initiation life, Al-Alloy, stressratio, notch effect", volume = "5", number = "7", pages = "1276-4", }
