Effects of gap size and excitation frequency on the vibrational behavior and wear rate of fuel rods

Hu, Zupan; Thouless, M.D.; Lu, Wei

doi:10.1016/j.nucengdes.2016.08.038

Cited by 27 publications

(7 citation statements)

References 38 publications

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“…13 depend on the loads and geometry, can be obtained by analyzing the stress field around the corner. We have built finite-element models (FEM) using ABAQUS.…”

Section: Scaling Of the Systemmentioning

confidence: 99%

“…The stress field around a contact interface with a sharp corner is closely related to various failures such as wear, fatigue and plastic yielding, which significantly limit the life of various engineering components [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. The analysis of contact stress around these area is important in understanding the onset and propagation of those failures: it will provide guidelines for the design of contact components so that the damage can be limited [11,12,[15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

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Contact around a Sharp Corner with Small Scale Plasticity

Hu¹

2017

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Abstract:Owing to elastic singularity, the contact stress around a sharp corner is highly sensitive to the boundary conditions and local geometrical details. Determination of such stress is critical in predicting failures such as wear, fretting fatigue and crack initiation. In this paper, the stress around such corner is analyzed based on linear elasticity and small scale plasticity. The stress on the contact interface is generalized in a way that the results can be easily converted to represent another corner with different dimensions or boundary conditions. An example is presented to show the determination of the stress scale and the formulation of a generalized solution. It is shown that the generalized macro stress field away from the corner dominates the contact behaviors around the corner.

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“…13 depend on the loads and geometry, can be obtained by analyzing the stress field around the corner. We have built finite-element models (FEM) using ABAQUS.…”

Section: Scaling Of the Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Contact around a Sharp Corner with Small Scale Plasticity

Hu¹

2017

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“…There are several kinds of base liquids namely bio-liquids, lubricants, oils, water, polymer solutions, ethylene glycol etc. Such liquids have useful applications in transformer cooling, electronic cooling and heat exchanger [1][2][3]. Thus for the intensification of thermal potential, fine metalic particles ( 2 , TiO , Cu , Ag 23 , Al O Fe and their oxides) are dispersed homogeneously in the operating liquids.…”

Section: Introductionmentioning

confidence: 99%

Modeling for radiated Marangoni convection flow of magneto-nanoliquid subject to Activation energy and chemical reaction

et al. 2020

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Simultaneous impacts of non-linear radiation and magnetohydrodynamics in Marangoni convection nanoliquid are addressed Novel aspects of activation energy and space dependent heat source are addressed. Nanoliquid attributes Brownain movement and thermophoresis diffusion. NDSolve base shooting technique is employed for the numerical simulation. Aspects of various embedded variables are focused on velocity, heat and mass transport distributions via graphical interpretations. Moreover temperature gradient at the surface is estimated and analyzed. Our study identified that exponential based space heat source (ESHS) parameter significantly enhanced the thermal field. Activation energy and temperature difference parameters decrease the nanoparticles concentration. Moreover temperature gradient enhances for higher Marangoni ratio parameter, Hartmann number, dimensionless activation energy and thermophoresis parameter.

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“…Both theoretically and experimentally, investigation has been processed to achieve remarkable thermal conductivity increment in the nanofluid. Heat exchanger, vehicle cooling, vehicle thermal management, nuclear reactor and cooling of electronic devices and many more (Hu et al , 2015a, 2015b; Hu et al , 2016a, 2016b; Turkyilmazoglu, 2016a; Wang et al , 2017 and Turkyilmazoglu, 2017) contains nanofluids’ applications. Moreover, cancer therapy, wound treatment, resonance imaging and hyperthermia are supported by magneto nanofluids (MNFs).…”

Section: Introductionmentioning

confidence: 99%

Darcy–Forchheimer flow of nanofluid due to a curved stretching surface

Saif

Hayat

Ellahi

et al. 2019

HFF

104

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Purpose The purpose of present communication is to analyze Darcy–Forchheimer flow of viscous nanofluid by curved stretchable surface. Flow in porous medium is characterized by Darcy–Forchheimer relation. Brownian diffusion and thermophoresis are considered. Convective heat and mass boundary conditions are also used at the curved stretchable surface. Design/methodology/approach The resulting nonlinear system is solved through shooting technique. Findings Skin friction coefficient is enhanced for larger porosity parameter and inertia coefficient while reverse trend is noticed for curvature parameter. Local Nusselt number is enhanced for higher Prandtl number and thermal Biot number, whereas the opposite trend is seen via curvature parameter, porosity parameter, inertia coefficient, thermophoresis parameter and Brownian motion parameter. Local Sherwood number is enhanced for Schmidt number, Brownian motion parameter and concentration Biot number, while reverse trend is noticed for curvature parameter, porosity parameter, inertia coefficient and thermophoresis parameter. Originality/value To the best of author’s knowledge, no such consideration has been given in the literature yet.

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Effects of gap size and excitation frequency on the vibrational behavior and wear rate of fuel rods

Cited by 27 publications

References 38 publications

Contact around a Sharp Corner with Small Scale Plasticity

Contact around a Sharp Corner with Small Scale Plasticity

Modeling for radiated Marangoni convection flow of magneto-nanoliquid subject to Activation energy and chemical reaction

Darcy–Forchheimer flow of nanofluid due to a curved stretching surface

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