FatigueCrack propagationFractureParis’ lawSN curvesAn extension of the celebrated Paris law for crack propagation is given to take into account some of the deviations from the power-law regime in a simple manner using the Whler SN curve of the material, suggesting a more general "unified law"...
The results of six series of 18 to 30 similar fatigue tests on three types of specimens are used to check the applicability of the normal distribution function and the three-parameter Weibull distribution function. A least-square procedure is adopted to obtain the three parameters of the Weibull...
Very close relationship between the constant and the exponent of the Paris-Erdogan equation describing fatigue crack growth rate has been described in many papers. Mostly a linear relation between the exponent and the logarithm of the constant has been found which leads to an idea of a crossover...
The Paris-Erdogan lawSafety analysesConfidence limitTolerance limitBecause the initial crack size, the stress, the material properties and other factors that may affect the fatigue crack growth, the fatigue crack growth rate are statistically distributed. The upper limit of fatigue crack growth rate ...
in the absence of more direct information, can be crudely retrieved by interpolating with a power-law curve between static strength at a given conventional low number of cycles N0 (of the order of 10-103), and the fatigue limit at a "infinite life", also conventional,...
crack‐size effectsdimensional analysisfatigue thresholdfractal geometryintermediate asymptoticsParis' lawThe present contribution investigates the crack‐size effects on Paris'' law in accordance with dimensional analysis and intermediate asymptotics theory, which makes it possible to obtain a generalised ...
Fatigue crack behaviourThree-point bending testWedge splitting testSelf-compacting concreteParis-Erdogan lawThe fatigue behaviour of concrete has become more important for the design of constructions due to the desire to build slimmer structures, which are more sensitive to fatigue loading. This article...
In a final step, the Paris-Erdogan law parameters C and m were obtained through linear curve fitting on the data points from the obtained graphs. The parameters C and m are then used to compare and evaluate the fatigue crack behavior in vibrated concrete, and the differen...
doi:10.1007/s40032-017-0418-2S. SajithK. S. R. Krishna MurthyP. S. RobiSpringer India
Surface crackPlate with a semicircular notchFatigue crack propagationPreferential propagation pathIn this paper, a Paris law-based model is presented whereby crack propagation occurs under cyclic loading in air (fatigue) and in an aggressive environment (corrosion-fatigue) for the case of corner cracks...