Results 1 to 10 of about 943,858 (341)
Numerical analysis of hydrogen-assisted rolling-contact fatigue of wind turbine bearings [PDF]
Fracture and Structural Integrity, 2014 Offshore wind parks at locations further from the shore often involve serious difficulties, e.g. the maintenance. The bearings of offshore wind turbines are prone to suffer hydrogen-assisted rolling-contact fatigue (HA-RCF).
J. Toribio +3 more
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Atomic mechanism of near threshold fatigue crack growth in vacuum
Nature Communications, 2022 It is challenging to understand failure mechanisms under a prolonged low-amplitude loading. Here the authors perform large-scale simulations to better understand the fatigue crack growth mechanism in vacuum, providing an atomic-scale origin for a ...
Mingjie Zhao, Wenjia Gu, Derek H. Warner
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Impact-induced damage accumulation at micro- and nanostructural scale levels in sintered powders SiO2, SiC, and Al2O3 and in their single crystal counterparts [PDF]
Science of Sintering, 2016 The acoustic emission (AE) and fractoluminescence (FL) techniques were applied to study the impact damage in sintered powders of SiO2, SiC and Al2O3 and their single crystal counterparts.
Chmel Alexandre +2 more
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Bone & Joint Open, 2021 Aims: Hip fracture patients have high morbidity and mortality. Patient-reported outcome measures (PROMs) assess the quality of care of patients with hip fracture, including those with chronic cognitive impairment (CCI).
Malfrid H. Kristoffersen +6 more
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Acta Orthopaedica, 2020 Background and purpose — The term “weekend effect” describes differences in outcomes between patients treated at weekends compared with weekdays. We investigated whether there is a weekend effect for the risk of reoperation and mortality after hip ...
Andrea Boutera +3 more
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Effect of Indirect Neural Decompression by Minimally Invasive Oblique Lumbar Interbody Fusion in Adult Degenerative Lumbar Spine Disease and Its Limitations [PDF]
Journal of Minimally Invasive Spine Surgery and Technique, 2019 Objective To study efficacy of minimally invasive oblique lumbar interbody fusion (MIS OLIF) to achieve indirect decompression in degenerative lumbar spine disorders.
Nisarg P. Parikh +2 more
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Metals, 2021 In this study, hydrogen-assisted fatigue propagation (a kind of corrosion fatigue phenomenon) in corner cracks at holes located in plates under tensile loading was studied, the results compared with those obtained for propagation by fatigue in air.
Jesús Toribio +2 more
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Multiscale simulation of injection-induced fracture slip and wing-crack propagation in poroelastic media [PDF]
, 2021 In fractured poroelastic media under high differential stress, the shearing of fractures and faults and the corresponding propagation of wing cracks can be induced by fluid injection. Focusing on low-pressure stimulation with fluid pressures below the minimum principal stress but above the threshold required to overcome the fracture's frictional ...
arxiv +1 more source
A hybrid-mixed finite element method for single-phase Darcy flow in fractured porous media [PDF]
, 2021 We present a hybrid-mixed finite element method for a novel hybrid-dimensional model of single-phase Darcy flow in a fractured porous media. In this model, the fracture is treated as an $(d-1)$-dimensional interface within the $d$-dimensional fractured porous domain, for $d=2, 3$.
arxiv +1 more source
Mechanical Engineering Journal, 2016 By using an aligned multi-walled carbon nanotube (MWCNT) reinforced epoxy composite, an electrothermal bimorph actuator was fabricated and its load and deformation capacities were investigated.
Keiichi SHIRASU +6 more
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