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Showing 1 to 9 of 9 for “"Material fatigue"”.
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Practical Aspects of Assessing Nonlinear Ultrasonic Response of Cyclically Load 7075-T6 Aluminum
… relation of the ultrasonic waves due to material fatigue damage or degradation, the spectral analysis techniques such as the power spectrum, bispectrum, and bicoherence spectrum are applied. The ultrasonic nonlinearity parameters by Cantrell and Jhang are introduced and presented as a …
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The effect of surface treatment and rolling direction on the fatigue behavior of grade one commercially pure titanium
Fully-reversed bending fatigue tests were conducted on both the as-received and finished grade one commercially pure titanium. Finishing is done by a process developed by TiMesh Inc., and known as TiMesh finishing. Results show that TiMesh finishing can not only increase material fatigue life at …
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Modeling Fatigue Behavior of 3D Printed Titanium Alloys
… cycles lead to the formation of strain in the material which causes initiation of the crack formation this phenomenon is called fatigue. Fatigue properties are critical for structures subject to cyclic load; hence fatigue analysis is used to predict the life of the material. Fatigue analysis …
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The Role of Slip System Activation on Ni-Based Superalloy High Temperature Fatigue
… in aircraft engine components. These materials are desirable due to their high strength, resistance to creep, corrosive environment, and high temperature. It has been well documented that material fatigue is characterized by material microstructure, type of loading, and other …
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Evaluation of Stress and Fatigue in Femoral Hip Implants
… an accurate theoretical assessment of fatigue life is critical. In order for a femoral implant design to be launched to the market, fatigue testing is required by regulatory bodies as evidence of the implant strength to different potting scenarios. The time required to cut forging dies, …
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Control oriented concentrating solar power (CSP) plant model and its applications
… resulting in performance degradation and material fatigue in their expected lifetime of over 30 years. The research proposes to develop a three-level controller that uses multi-input-multi-output (MIMO) control technology to minimize the effect of these disturbances, improve plant …
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The effect of geometry on acoustic emission.
… the acoustic emission sources in terms of material fatigue and fracture parameters in order to determine their severity on the structure components. In practice, the acoustic emission signature from the receiving transducer output is strongly affected by the structure geometry, …
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The influence of high harmonic force on fatigue life and its prediction via coupled inline-crossflow VIV modeling
… and the study of VIV and the resulting material fatigue is particularly important in design for ultra-deep water oil exploration and development. Long cylindrical structures such as risers and mooring lines can be outfitted with VIV-cancellation systems or subjected to aggressive …
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Analytical and computational methods for non-Gaussian reliability analysis of nonlinear systems operating in stochastic environments
… design, and can be caused both by uncertainty in materials and construction, and by the inherently stochastic nature of random waves. Due to the dynamical nonlinearity of these systems, the statistical response is typically non-Gaussian with highly non-trivial distribution tails, making the …