International Journal of Fatigue
Papers 6825
1 page of 683 pages (6,825 results)
#1Alfonso Fernández-Canteli (University of Oviedo)H-Index: 24
#2Enrique Castillo (Royal Academy of Engineering)H-Index: 62
Last. Sergio Blasón (BAM: Bundesanstalt für Materialforschung und -prüfung)
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Abstract Sample functions, i.e., stochastic process realizations, are used to define cumulative damage phenomena which end into an observable terminal state or failure. The complexity inherent to such phenomena justifies the use of phenomenological models associated with the evolution of a physical magnitude feasible to be monitored during the test. Sample functions representing the damage evolution may be identified, once normalized to the interval [0,1], with cumulative distribution functions ...
#1Chao HeH-Index: 23
Last. Qiang ChenH-Index: 108
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#1Wei SongH-Index: 5
#2Xuesong LiuH-Index: 8
Last. Filippo BertoH-Index: 68
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Abstract It is a fundamental step to quantify the multiaxial fatigue damage considering the complex service conditions for notched components or welded structures. In our study, multiaxial Low Cycle Fatigue (LCF) tests of notched specimens were conducted on 10CrNi3MoV high strength steel and related undermatched welds under proportional and non-proportional cyclic loadings. The characteristic states of normal/shear stress, strain and energy around notch roots are analyzed considering the elasto-...
#1Aleksandar Sedmak (University of Belgrade)H-Index: 18
#2Abubkr M. Hemer (University of Belgrade)H-Index: 1
Last. Milan KljajinH-Index: 8
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Abstract Fatigue crack growth through different welded joint regions was investigated, in terms of welded joint geometry and fatigue crack position. In the first phase of investigation, numerical simulation of crack growth in a welded joint made of steel P460NL1 was performed using extended Finite Element Methods (xFEM). Numerical models employed Paris law, using experimentally determined coefficients for each welded joint zone. Weld geometry was varied by using different heat affected zone (HAZ...
#1Hermann Riedel (Fraunhofer Society)H-Index: 18
#2Gerhard Maier (Fraunhofer Society)H-Index: 4
Last. Heiner Oesterlin (Fraunhofer Society)H-Index: 1
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Abstract Methods proposed by current codes and standards to deal with creep-fatigue problems are far from being satisfactory. For a better understanding, a model is developed based on grain boundary cavitation (representing creep damage) and microcrack growth (representing low-cycle fatigue damage). Creep-fatigue interactions occur by (1) contributions of creep deformation to fatigue crack growth, and (2) enhanced creep rates after load variations, as they occur, e.g., during start/stop cycles. ...
#1Dongjin Kim (LG Electronics)H-Index: 8
#2Chanyang Choe (Osaka University)
Last. Katsuaki Suganuma (Osaka University)H-Index: 69
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Abstract This study conducts stress-controlled cyclic tension-tension tests from room temperature (RT) to 200 °C, at 50 °C intervals, on high-purity Cu films to comprehensively understand the temperature-dependent fatigue life and the related microstructural and fracture characteristics. As evidenced by the electron backscattering diffraction analysis, the Ʃ3 boundary fraction decreases and the low-angle grain boundary fraction increases as the temperature increases. The significant change in th...
#1Mehedi Hasan (UH: University of Houston)H-Index: 1
#2Theocharis Baxevanis (UH: University of Houston)H-Index: 15
Abstract A phenomenological phase-field model for the formation and growth of fatigue macro-cracks in brittle materials is proposed. Additionally to the classical elastic stiffness degradation in the phase-field approach to overload fracture, a fracture toughness degradation is further introduced. The model can reproduce both total life approaches, such as the Basquin empirical relation, and the Paris law, which lies at the core of most of the defect-tolerant approaches, with exponents character...
Abstract Safety requirements for bicycles are defined in different standards in Europe and worldwide. Nevertheless the payload of bicycles and the weight of the rider are not taken into account for the formulation of the test loads for mechanical tests. The average weight of bicycle users varies widely worldwide, and in recent years there has been a significant increase, especially in the industrialized nations, where electrically power assisted cycles in particular are experiencing very high de...
#1Abdul Khadar Syed (Coventry University)H-Index: 9
#2Xiang Zhang (Coventry University)H-Index: 174
Last. Stewart W. Williams (Cranfield University)H-Index: 40
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Abstract This paper investigates the influence of two different deposition strategies, oscillation and parallel pass, on the tensile and high cycle fatigue properties of a wire + arc additive manufactured Ti-6Al-4V alloy in the as-built condition. In the oscillation build, the plasma torch and the wire feeder continuously oscillated across the wall thickness direction. In contrast, four single layers were deposited consecutively in the same direction along the wall length in the parallel pass bu...
#1Xinyan Wang (CAEP: China Academy of Engineering Physics)H-Index: 1
Last. Xuefei Guan (CAEP: China Academy of Engineering Physics)H-Index: 2
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Abstract The fatigue crack growth of wire and arc additive manufactured Ti-6Al-4V alloys is investigated using in-situ SEM fatigue testing. The small crack initiation and propagation behaviors within grains and across grains are systematically studied, and the inter- and trans-granular crack growth rates are quantified. A synergy and competition among many factors such as persistent slip bands, grain boundaries, and crack branching governs the growth rate. A modified model based on the CTOD is p...
Top fields of study
Composite material
Materials science
Fracture mechanics
Structural engineering
Crack closure