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Showing 1 to 9 of 9 for “"variable amplitude loading"”.
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Effect of Variable Amplitude Loading on Fatigue Crack Growth Rate
… and structure that are subjected to dynamic loading conditions. Several models have been proposed for estimating crack growth rate da/dN under various conditions. The majority of work reported has focused on constant amplitude (CA) loading and some for variable amplitude (VA) loading. The …
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Damage accumulation of bovine bone under chaotic and variable amplitude loading.
… experimental set-up was used to test chaotic loading conditions. The variable amplitude set-up was utilized to test variable amplitude loading conditions. Lastly, a four-point bend test was used to determine the baseline properties of the bone tissue. Scanning electron microscopy was employed …
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A variable amplitude multiaxial fatigue life prediction method
… the fatigue life of a component subjected to variable amplitude multiaxial loading has been developed. It is based upon an extension of the strain-life approach which achieved success in correlating the fatigue lives of components subjected to uniaxial variable amplitude loading. In addition, …
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Fatigue Damage and Small Crack Growth During Biaxial Loading
… nature of fatigue damage under biaxial loading has been investigated. Experiments were performed on thin-wall tubular specimens of 1045 steel in tension, torsion, and combined tension-torsion loading. Two equivalent strain amplitudes, one in the high cycle fatigue (HCF) region and one in …
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Damage accumulation of bovine bone under variable amplitude loads.
… apparatus was constructed to conduct cyclic and variable amplitude tests on bovine bone specimens. Three distinct damage regimes were observed following fracture. Fractures appeared ductile from low cyclic amplitude (< 4,000 με), brittle, from high cyclic amplitude (> 9,000 με), and a combination …
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Mechanics of Fiber-Controlled Behavior in Polymeric Composite Materials
… to the model are made to include the effects of variable amplitude loading. These modifications are based upon the use of remaining strength as a damage metric and the definition of an equivalent generalized time. The model is initially validated using results from the literature. Also, …
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High-cycle fatigue / low-cycle fatigue interactions in Ti-6Al-4V
… fatigue (HCF) and lowcycle fatigue (LCF) loadings are widely recognized as unavoidable during operation of these components and because the classic Linear Damage Rule (LDR) neglects to account for the synergistic interaction between these damage contributors, dangerous over predictions of …
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Enhanced strain-based fatigue methodology for high strength aluminum alloys
… of a component of withstanding fatigue loading conditions during service is called fatigue life and the designed predictions can be conservative or non conservative. Improvements to a strain based approach to fatigue were obtained in this study, studying the effects of mean stresses on …
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Non-linear individual and interaction phenomena associated with fatigue crack growth.
… plate thickness on crack growth under constant amplitude loading, crack growth retardation due to an overload cycle, and small crack growth from sharp notches are considered. A new semianalytical method is developed for the investigations, which utilises the distributed dislocation technique and …