AVT-6 titanium alloy rolled sheet, which is initially isotropic and subject to kinematic hardening, is used as an example to analyze the effect of kinematic hardening on crack growth resistance under uniaxial cyclic loading. Crack growth resistance is characterized by the number of cycles to failure, critical crack length, and critical stress intensity factor. The subject of study is plane specimens with an edge notch. It is shown that prestrain changes the anisotropy of the specimens, which is determined as the ratio of the crack growth resistance in the rolling direction to that in the transverse direction. The crack path under a load applied at an angle to the axes of anisotropy is studied
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
G. Ya. Akimov and V. M. Timchenko, “Effect of strain rate and preloading on the fracture toughness of ZrO2-based ceramics,” Strength of Materials, 34, No. 5, 514–517 (2002).
V. N. Bastun, “Solving the problem of the origin of strain anisotropy in thin-walled structural elements,” Int. Appl. Mech. 31, No. 5, 365–369 (1995).
V. N. Bastun, “Character of failure of a strain-hardening orthotropic material in uniaxial cyclic tension,” Int. Appl. Mech., 28, No. 3, 178–180 (1992).
F. F. Giginyak, A. O. Lebedev, and O. K. Shkodzins’kyi, Strength of Structural Materials under Low-Cycle Loading and Complex Stress State [in Ukrainian], Nauk. Dumka, Kyiv (2003).
A. A. Kaminsky and V. N. Bastun, Strain Hardening and Fracture of Metals under Variable Loading [in Russian], Nauk. Dumka, Kyiv (1985).
A. A. Lebedev, B. I. Koval’chuk, F. F. Giginyak, and V. P. Lamashevskii, Mechanical Properties of Structural Materials in Complex Stress State [in Russian], Izd. Dom “In Yure,” Kyiv (2003).
G. G. Maksimovich, E. M. Lyutyi, S. V. Nagirnyi, et al., Strength of Deformed Metals [in Russian], Naukova Dumka, Kyiv (1976).
Determination of Fracture Characteristics (Crack Resistance) under Static Loading: Guideline [in Russian], Izd. Standartov, Moscow (1982).
P. G. Miklyaev and Ya. B. Fridman, Anisotropy of Mechanical Properties of Metals [in Russian], Metallurgiya, Moscow (1986).
P. G. Miklyaev, G. S. Neshpor, and V. G. Kudryashev, Fracture Kinetics [in Russian], Metallurgiya, Moscow (1973).
V. V. Pokrovskii and A. G. Ivanchenko, “Influence of the modes of thermomechanical preloading on the resistance of heat-resistant steels to brittle fracture,” Strength of Materials, 31, No. 2, 200–209 (1999).
V. A. Strizhalo, “Influence of preliminary plastic deformation on the low-cycle fatigue of a titanium alloy under conditions of deep cooling,” Strength of Materials, 32, No. 6, 530–533 (2000).
V. A. Strizhalo and I. I. Medved’, “Effect of prior plastic deformation on the low-cycle fatigue of 03Kh13AG19 chrome-manganese steel at a temperature of 4.2 K,” Strength of Materials, 18, No. 5, 633–640 (1986).
G. P. Cherepanov, Mechanics of Brittle Fracture [in Russian], Nauka, Moscow (1974).
N. I. Chernyak, Mechanical Properties of Steel in the Range of Small Plastic Strains [in Russian], Izd. AN USSR, Kyiv (1962).
V. N. Bastun and A. A. Kaminsky, “Applied problems in the mechanics of strain hardening of structural metallic materials,” Int. Appl. Mech., 41, No. 10, 1092–1129 (2005).
O. S. Bogdanova, “Limiting state of an elastoplastic orthotropic plate with a periodic system of collinear cracks,” Int. Appl. Mech., 43, No. 5, 539–546 (2007).
G. G. Chell, J. R. Haigh, and V. A. Vitek, “Theory of warm prestressing: Experimental validation and the implication for elastic-plastic failure criteria,” Int. J. Fract., 17, No. 1, 61–81 (1981).
G. V. Gavrilov, “Study into the kinetics of a crack with a nonsmall fracture process zone,” Int. Appl. Mech., 43, No. 8, 903–911 (2007).
A. A. Kaminsky, E. E. Kurchakov, and G. V. Gavrilov, “Formation of a plastic zone in an anisotropic body under loads acting along a crack,” Int. Appl. Mech., 43, No. 5, 475–490 (2007).
A. A. Kaminsky, L. A. Kipnis, and V. A. Kolmakova, “Model of a fracture process zone at the tip of a crack reaching the nonsmooth interface between elastic media,” Int. Appl. Mech., 44, No. 10, 1084–1092 (2008).
S. B. Nizhnik and E. A. Dmitrieva, “Predicting the strain hardening characteristics of ageing alloys under combined loading,” Int. Appl. Mech., 43, No. 6, 683–689 (2007).
V. N. Timofeev and V. J. Smirnov, “Calculated and experimental estimation of preliminary loading effect at elevated temperatures on fracture toughness of pressure vessel materials,” Int. J. Press. Vessel Piping, 63, 135–140 (1995).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Prikladnaya Mekhanika, Vol. 45, No. 7, pp. 110–116, July 2009.
Rights and permissions
About this article
Cite this article
Bastun, V.N. On fracture toughness of orthotropic metallic materials under cyclic loading. Int Appl Mech 45, 780–785 (2009). https://doi.org/10.1007/s10778-009-0228-1
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10778-009-0228-1