Abstract
In this paper, the near-threshold fatigue behavior of physically through-thickness short cracks and of long cracks in a low alloy steel is investigated by experiments in ambient air. Physically through-thickness short fatigue cracks are created by gradually removing the plastic wake of long cracks in compact tension specimens. The crack closure is systematically measured using the compliance variation technique with numerical data acquisition and filtering for accurate detection of the stress intensity factor (SIF) at the crack opening. Based on the experimental results, the nominal threshold SIF range is shown to be dependent on the crack length and the characteristic of the crack wake which is strongly dependent on the loading history. The effective threshold SIF range and the relation between the crack propagation rate and the effective SIF range after the crack closure correction are shown to be independent on crack length and loading history. The shielding effect of the crack closure is shown to be related to the wake length and load history. The effective threshold SIF range and the relationship between the crack growth rate and the effective SIF range appear to be unique for this material in ambient air. These properties can be considered as specific fatigue properties of the couple material/ambient air environment.
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References
Davidson D, Suresh S (1984) Fatigue crack growth threshold concept. TMS AIME Pub, Warendale
Elber W (1970) Fatigue crack closure under cyclic tension. Eng Fract Mech 2:37–45
Newman Jr JC, Elber W (1988) Mechanics of fatigue crack closure, ASTM STP 982, American Society for Testing and Materials, pub., Philadelphia, USA
McClung RC, Newman JR JC (1999) Advances in fatigue crack closure measurement and analysis, volume 2. ASTM STP 1343, American Society for Testing and Materials pub, Philadelphia, USA
Pearson S (1975) Initiation of fatigue cracks in commercial aluminum alloys and the subsequent propagation of very short cracks. Eng Fract Mech 7:235–247
Healy J, Bushby AJ, Mai YW, Mukhopadhyay AK (1997) Cyclic fatigue of long and short cracks in alumina. J Mater Sci 32(3):741–747. doi:10.1023/A:1018556322981
Fett T, Martin G, Munz D, Thun G (1991) Determination of da/dN-ΔK 1 curves for small cracks in alumina in alternating bending tests. J Mater Sci 26(12):3320–3328. doi:10.1007/BF01124680
Miller KJ (1982) The short crack problem. Fatigue Eng Mater Struct 5:223–232
Suresh S, Ritchie RO (1984) Propagation of short fatigue cracks. Int Met Rev 29:445–476
Zeghloul A, Petit J (1985) Environmental sensitivity of small crack growth in 7075 aluminium alloy. Fatigue Fract Eng Mater Struct 8:341–348
Lankford J, Ritchie RO (1986) Small Fatigue Cracks. TMS AIME publication, Warendale
Pineau A (1986) Short fatigue crack behaviour in relation to three dimensional aspects and crack closure effect. Lankford J and Ritchie RO eds TMS AIME pub Warrendale, pp. 191–209
Ritchie RO, Yu W (1986) Short crack effecting fatigue: a consequence of crack tip shielding. Small fatigue cracks. Lankford J and Ritchie RO editors TMS AIME pub Warrendale, pp. 167–189
Venkateswara Rao KT, Yu W, Ritchie RO (1986) Scr Metall. 20:1459–1464
McClung RC, Sehitoglu, H (1988) Closure behavior of small cracks under high strain fatigue histories. In: J. C. Newman Jr. and W. Elber (eds), Mechanics of Fatigue Crack closure, vol. 982. ASTM STP, pp. 279–299
Zeghloul A, Petit J (1989) Influence de l’environnement sur la propagation des fissures courtes et longues dans un alliage léger type 7075. Revue de Physique 24:893–904
Zeghloul A, Petit J (1989) Influence de l’environnement et de la microstructure sur la propagation en fatigue des fissures courtes tridimensionnelles. Revue de Physique Appliquée 24:905–913
Petit J, Zeghloul A (1990) Environmental and Microstructural Influence on Fatigue Propagation of Small Surface Cracks. In: Lisagor WB, Crooker TW and Leis BN eds, Environmentally Assisted Cracking: Science and Engineering, Vol. ASTM STP 1049, pp. 334–346
Miller KJ, De los Rios ER (1992) Short fatigue cracks. ESIS 13. Mechanical Engineering Publication, London
Petit J, Mendez J, Berata W, Legendre L, Muller C (1992) Influence of environment on the propagation of short and long cracks in a titanium alloy. In: Miller KJ and de Los Rios ER (eds), Short fatigue cracks, ESIS 13, London, MEP pub, pp. 235–250
Newman JC Jr (1998) The merging of fatigue and fracture mechanics concepts: a historical perspective. Prog Aerosp Sci 34:347–390
Ravichandran KS, Ritchie RO, Murakami Y (1999) Small fatigue cracks: mechanics and mechanisms. Engng Foundation Publication, Oxford, UK
Petit J (1999) Influence of environment on small fatigue crack growth. In: Small fatigue cracks, mechanics, mechanisms and applications, Ravichandran KS, Ritchie RO, Murakami Y (eds), Elsevier Pub., Amsterdam, pp. 167–178
Petit J (1984) Some aspects of near threshold fatigue crack growth: microstructural and environmental effects. In: Davidson D, Suresh S (eds) Fatigue crack growth threshold concepts. TMS, AIME, Philadelphia, pp 3–24
Zhang XP, Wang CH, Ye L, Mai Y-W (2005) A study of the crack wake closure/opening behavior of short fatigue cracks and its influence on crack growth. Mater Sci Eng A406:195–204
Christ HJ, Duber O, Floer W, Krupp U, Fritzen CP, Kunkler B, Schick A (2006) Microstructural effect on short fatigue crack propagation and their modeling. Fracture of nano and engineering materials and structures, Proceedings of the 16th European Conference of Fracture, E E Gdouos ed, Springer pub, Netherlands pp. 9–863
Mann T, Härkegard G, Stärk K (2007) Short fatigue crack growth in aluminum alloy 6082-T6. Int J Fatigue 29:1820–1826
McEvily AJ, Ishihara S, Endo M, Sakai H, Matsunaga H (2007) On one- and two-parameter analyses of short fatigue crack growth. Int J Fatigue 29:2237–2245
Chang H, Han EH, Wang JQ, Ke W (2009) Acoustic emission study of fatigue crack closure of physical short and long cracks for aluminum alloy LY12CZ. Int. J Fatigue 31:403–407
Verreman Y, Limodin N (2008) Fatigue notch factor and short crack propagation. Eng Fract Mech 75:1320–1335
Hansson P, Melin S (2010) Influence from geometrical features on the growth rate of a micro-structurally short fatigue crack. Eng Fract Mech 77:1907–1913
Santus C, Taylor D (2009) Physically short crack propagation in metals during high cycle fatigue. Int J Fatigue 31:1356–1365
Rice JR, Paris PC, Merkle JG (1973) In: Progress in flaw growth and fracture toughness testing. ASTM STP 536, American Society for Testing and Materials pp. 231–245
Zhang JZ, Zhang JZ, Du YS (2001) Elastic-plastic finite element analysis and experimental study of short and long fatigue crack growth. Eng Fract Mech 68:1591–1605
Vor K, Gardin C, Sarrazin-Baudoux C, Petit J (2013) Wake length and loading history effects on crack closure of through-thickness long and short cracks in 304L: Part I—Experiments. Eng Fract Mech 2013(99):266–277
Vor K, Gardin C, Sarrazin-Baudoux C, Petit J (2013) Wake length and loading history effects on crack closure of through-thickness long and short cracks in 304L: Part II—3D numerical simulation. Eng Fract Mech 99:306–323
ASTM E647-00 (2000) Standard test method for measurement of fatigue crack growth rates, ASTM International
Kitagawa H, Takahashi S (1976) Applicability of fracture mechanics to very small cracks on the crack in the early stage, Second International Conference on Mechanical Behaviour of Material
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The financial support of this work by DALIA/CAMELIA project from EDF R&D is greatly appreciated.
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Pham, TH., Tran, VX., Chretien, G. et al. Near-threshold fatigue propagation of physically through-thickness short and long cracks in a low alloy steel. J Mater Sci 50, 242–250 (2015). https://doi.org/10.1007/s10853-014-8582-8
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DOI: https://doi.org/10.1007/s10853-014-8582-8