Results 71 to 80 of about 431,285 (310)
The detection of tightly closed flaws by nondestructive testing (NDT) methods [PDF]
Liquid penetrant, ultrasonic, eddy current and X-radiographic techniques were optimized and applied to the evaluation of 2219-T87 aluminum alloy test specimens in integrally stiffened panel, and weld panel configurations.
Mullen, S. J. +3 more
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Turbine disks for improved reliability [PDF]
, 1977 Advanced disk structural concepts were employed to improve the cyclic lives and reliability of turbine disks. Analytical studies were conducted to evaluate bore-entry disks as potential replacements for the existing first-stage turbine disks in the CF6 ...
Kaufman, A.
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Voluntary activation of human knee extensors measured using transcranial magnetic stimulation [PDF]
, 2009 The aim of this study was to determine the applicability and reliability of a transcranial magnetic stimulation twitch interpolation technique for measuring voluntary activation of a lower limb muscle group.
Goodall, Stuart, Romer, Lee, Ross, Emma
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Arthritis Care &Research, Accepted Article.Objective This study aimed to characterize cannabis product choices (cannabinoid content and formulation) among rheumatology patients, and their associations with patient factors, patient reported perceived side effects and positive impacts. Methods An online survey (delivered from March to November 2022) was distributed by Alberta Health Services to ...
Susan Zhang +10 more
wiley +1 more source
BuildingsFive groups of recycled aggregate concrete (RAC) mixtures with mass replacement ratios of emery (0, 5%, 10%, 15%, 20%) were prepared. The cubic compressive strength, splitting tensile strength, flexural strength, and flexural fatigue properties under ...
Chuheng Zhong +4 more
doaj +1 more source
ANOTHER VIEW ON THE RELIABILITY OF SYSTEMS WITH COMPONENTS SUBJECTED TO FATIGUE [PDF]
Analele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, 2019 The paper asserts the issue of calculating the provisional reliability for products with fatigue-exposed components, during the exploitation under normal working conditions.
Călin Deneș, Valentin Grecu
doaj
On the multiaxial fatigue assessment of complex three-dimensional stress concentrators [PDF]
, 2014 This paper assesses and quantifies the detrimental effects of complex tri-dimensional notches subjected to uniaxial and multiaxial fatigue loading. A number of experimental results taken from the technical literature and generated by testing specimens ...
ASKES, Harm +4 more
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Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Reliability-Based Fatigue Life Prediction for Complex Structure with Time-Varying Surrogate Modeling
Advances in Materials Science and Engineering, 2018 To improve the computational efficiency and accuracy of reliability-based fatigue life prediction for complex structure, a time-varying particle swarm optimization- (PSO-) based general regression neural network (GRNN) surrogate model (called as TV/PSO ...
Lu-Kai Song +3 more
doaj +1 more source
Probabilistic finite elements for fatigue and fracture analysis [PDF]
An overview of the probabilistic finite element method (PFEM) developed by the authors and their colleagues in recent years is presented. The primary focus is placed on the development of PFEM for both structural mechanics problems and fracture mechanics
Belytschko, Ted, Liu, Wing Kam
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