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Fatigue Crack Growth Rate Data Assessment
Volume 4: Materials and Fabrication, 2021Abstract A comprehensive fatigue test database was developed in PRCI SIA-1-1 and IM-3-2 projects, where there are 185 sets of fatigue crack growth rate parameters (i.e., C and m fitting coefficients in the Paris law) calculated from compact tension (CT) fatigue test data.
Enyang D. Wang +2 more
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Crack growth rate of an inclined surface crack
Engineering Fracture Mechanics, 1992Investigation of surface crack growth in 16MnR steel specimens with crack inclination angle β = 0°, 30° and 45° and under the condition of biaxial loading ratio Px:Py = 0, 0.5 and 1 is reported in this paper. A formula of the stress intensity factor for surface cracked cruciform specimens loaded biaxially is calibrated using the finite element method ...
Zeng Zhaojing, Dai Shuho
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Fatigue crack path manipulation for crack growth rate measurement
Engineering Fracture Mechanics, 2016Abstract It is accepted that fatigue crack paths in metals that display confined slip, such as high strength aluminium alloys, are responsive to loading direction and local microstructural orientation. It is less well recognised that crack paths in these alloys are also responsive to the loading history since certain loading sequences can produce ...
S. Barter, P. White, M. Burchill
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Markov chain‐assisted stochastic model of crack growth rate
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2023AbstractOne of the most essential tasks in probabilistic damage tolerance assessment is to describe the scatter in crack growth accurately. This study proposes a stochastic model of the crack growth rate, which calculates the critical parameters of a random distribution accurately by combining the Markov chain and data fitting algorithms.
Kaimin Guo +6 more
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Crack growth rate in bent rods
Strength of Materials, 1991It was shown experimentally on rectangular epoxy rods ruptured by bending that a stress raiser on the surface of the rod, and also an addition of plasticizer to the material, reduce the crack growth rate. The effect of reducing the crack growth rate makes it possible to retain a rectilinear path of crack propagation when there are long arms of load ...
V. V. Grishaev, E. N. Vysotskii
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Crack opening displacement and the rate of fatigue crack growth
International Journal of Fracture Mechanics, 1972Using a direct proportionality between the rate of fatigue crack growth and crack opening displacement above a threshold, it is shown that fatigue crack growth data for a wide variety of different materials can be accurately described in terms of the mechanical properties and two material constants; the constant of proportionality A and the threshold ...
R. J. Donahue +4 more
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Crack growth in rate sensitive solids
1992Crack growth in viscoelastic solids has been studied by the energy balance approach [1, 2] and the specification of critical parameters [3–6] associated with rupture in the vicinity of the crack tip. Previous works, however, involved complicated manipulations and expressions that were solvable only by numerical means. Considered in this treatise is the
O. A. Bukharin, L. V. Nikitin
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