Many translated example sentences containing "friction" – French-English dictionary and search engine for French translations.

The internal friction measurement is applicable to the inspection of metallic uranium, uranium-diodixe pellets and zirconium alloys. This is because of its great sensitivity to th

A study has been made of the internal friction in 31% α brass. The relaxation time, τ r, of the order peak has been measured over 9 cycles of ten; this corresponds to data obtained in the range 175°C to 575°C. τ r is represented over this range by the expression 8.57 × 10 −16 exp (37,800 RT) sec.The radioactive tracer coefficients of both Cu and Zn in single …

Internal friction occurs only during a process with work that is irreversible . Internal friction is not involved when, for example, a temperature gradient causes heat to flow spontaneously across the …

For our purposes, we will simply say that external forces include the applied force, normal force, tension force, friction force, and air resistance force. And for our purposes, the internal forces include the gravity forces, magnetic force, electrical force, and spring force. While this is a simplistic approach, it is an approach that will ...

The internal friction and dynamic modulus of gold (99.999 per cent pure) and copper (99.99 per cent pure) deformed at room temperature and at liquid nitrogen temperature was measured as a function of temperature from −165°C to 100°C by the inverted torsion pendulum method. Three internal friction peaks were found in this temperature range.

The effects of aging and straining on the internal friction of hydrogen charged 1020 steel at low temperatures Les effets du vieillissement et de la deformation aux basses temperatures sur les valeurs de friction interne d'un acier 1020 charge en hydrogene Der einfluss von alterung und verformung auf die innere reibung von wasserstoffbeladenen 1020 stahl bei …

Abstract. Les effets de l'oxygène sur la friction interne, le module et la vitesse du son d'un alliage alpha/beta de titane disponible commercialement ont été étudiés dans un intervalle de ...

Les matériaux granulaires, dans leur comportement mécanique au cisaillement, se caractérisent par des paramètres importants, à savoir l'angle de frottement interne, la dilatance et l ...

1 Classification par mode d'entraînement. 1.1 Embrayages instantanés. Ce sont des embrayages dont l'entraînement se fait par obstacle ( embrayages à denture : carré, trapézoïdale, triangulaire ). De conception simple et économique, sa manoeuvre se fait obligatoirement à l'arrêt. 1.2 Embrayages progressifs.

Poisson ν et l'angle de friction interne ' du remblai sont indépendants ou reliés. Pour les valeurs indépendantes de ν et ', les résultats indiquent que la valeur de K est proche de celle de Ka, quand ν est sous une valeur critique. Au-delà de cette valeur critique, la valeur de K est déterminée par celle de K0 définie selon ν.

A study has been made of the internal friction in 31% α brass. The relaxation time, τ r, of the order peak has been measured over 9 cycles of ten; this corresponds to data obtained in the range 175°C to 575°C. τ r is represented over this range by the expression 8.57 × 10 −16 exp ( 37,800 RT) sec. The radioactive tracer coefficients of ...

En ce qui concerne les sables, l'angle de dilatance dépend de l'angle de frottement interne. Pour les sols pulvérulents (sable, gravier) avec un angle de frottement interne φ > 30 °, la valeur de l'angle de dilatance peut être estimée par ψ = φ - 30 °. Une valeur négative de l'angle de dilatance n'est acceptable que pour les sables ...

Simple considerations lead to the expectation that point defects will cause internal friction (by a stress-induced ordering mechanism) in all cases wh…

The reaction rate then is given by an equation of the general form. k = γ η + ξ e − ΔG ‡ / RT, [4] where η is solvent viscosity, γ is a proportionality constant with units of cP⋅s −1, and ΔG‡ is the free energy barrier. For protein folding as a function of glucose concentration, which affects both ΔG‡ and η, we have.

Entraînement par roue à friction, notamment destiné à entraîner par une liaison par friction un accessoire d'un moteur à combustion interne. Il comprend une roue à friction (5) montée sur un palier à roulement et appuyée contre une poulie de contact (6) reliée à un organe entraîné (3) et à une poulie de contact (7) d'un organe d'entraînement (4).

Static friction is the force holding an object in place on an incline, such as the cheese in Figure 1. The friction force points against the direction that the object would slide …

Internal Friction. The angle of internal friction, which is commonly known as the friction angle (φ), is the ability of granular material to withstand shear stress. From: …

As you can see in the formula of kinetic friction there is no mention of the force you're aplying, it's only proportional to the kinetic friction coeficient and to the normal force. If you calculate that you get that the force of the …

Sciences de la nature 8e année - Exercices 1.3 Question 1. Donne une définition de la friction interne. Question 2. Énumère trois facteurs qui influent sur la friction interne d'un liquide. Question 3. Comment la distance entre les …

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Friction angle of granular soils has also been correlated to SPT – N values by Hatanaka and Uchida specific value for soil friction angle for compacted clayey silt 25 degree. Salari et al. (2015) presented correlation equation for internal friction angle for well graded gravels with sand ( ') = 0.474 SPT + 16.188

Static friction prevents sliding. Static friction is the force holding an object in place on an incline, such as the cheese in Figure 1. The friction force points against the direction that the object would slide without friction. Static friction keeps gravity from pulling the cheese down the incline.

Results of this study showed that the static coefficient of friction increased with an increase in material moisture content from 12.0 to 45.7% (wb) for alfalfa and barley straw. This coefficient ...

Internal friction is an internal force that resists the movement between the particles of a material. This potential internal movement can be due to either external forces or change in...

Stabilité interne d'un gabion. Stabilité interne d'un mur en gabions - Coefficient de sécurité; Stabilité interne d'un mur en gabions - Etats limites; Calcul des forces agissant sur une culée; Pression des terres passive réduite; Déplacement du voile du mur; Pentes clouées. Calcul de la stabilité interne. Calcul de la capacité ...

FRICTION INTERNE NON LINEAIRE DANS UN CRISTAL SIMPLE OE ZIRCONIUM par I.G. Ritchie, A. Atrens et K.W. Sprur.gmann RESUME C'est une étude du phénomène de friction interne non linéaire dans un cristal simple de zirconium; ce qui couvre les interactions en-tre les dislocations et les obstacles immobiles et celles entre les dis-

Based on the 2-D cutting theory of Dr.Miedema, this article calculates the pressure distribution and the blade cutting forces for the saturated sand in the small cutting angles by using MATLAB ...

The present review article addresses the vibration behavior of bladed disks encountered e.g. in aircraft engines as well as industrial gas and steam turbines. The utilization of the dissipative effects of dry friction in mechanical joints is a common means of the passive mitigation of structural vibrations caused by aeroelastic excitation …

The changes of angles of wall and internal frictions are shown in Fig. 2 with increasing normal stress (Top) to the silo wall We can recognize that the normal stress σ h changes discontinuously with the increasing of bed height. This is a stick-slip motion. The stick-slip motion in wall friction is shown in the third frame. The wall friction angle increases …

Fig. 9(a) shows that the friction angle u uu decreases with increasing calcareous sand present. These results are in accordance with the available literature [61], which indicates that the ...