Results 261 to 270 of about 2,623,768 (284)

Contact Stresses Under Combined Pressure and Twist

Journal of Applied Mechanics, 1958
Abstract An analytical solution is presented for the case when an elastic sphere is pressed against an elastic half-space and twisted until complete slip occurs. Formulas are derived for the stress and displacement components, their evaluation is illustrated by numerical examples, and comparisons are made with the results of photoelastic
Hetényi, M., Mcdonald, P. H. jun.
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Effective Contact Stresses and Friction

Nature, 1961
THE earliest statement concerning statical frictional forces between rigid bodies is usually attributed to Coulomb (about 1776). The principle of Coulombic friction is that the force (F) required to generate translation of one body relative to another is directly proportional to the external force (W) transmitted across the contact plane, so that: F ...
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Hertzian Contact Stress

2022
Majid Yaghoubi, Hamed Tavakoli
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Improved Contact Stress Recovery for Mortar-Based Contact Formulations

2017
In a variety of engineering applications knowledge of accurate contact stress is of great importance.
Christoph Wilking, Manfred Bischoff, Ekkehard Ramm   +2 more
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Contact Stresses in Nitrided Steels

1993
A recently developed elastostatic model which includes the effects of roughness and layered microstructures, is applied to the selection and processing of materials, with the objective of increasing resistance to rolling fatigue and related forms of damage. The effect of nitriding and of thin ceramic coatings is investigated.
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Tyre-to-ground contact stresses

Wear, 1958
Abstract Because pneumatic tyres not only carry the weight of a vehicle but propel and guide it, the study of tyre-to-ground contact stresses is one of importance. Unlike the case of metal rolling on metal the tangential forces and consequent movements between the rubber tyre and rigid ground are probably of greater importance than the normal ...
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Hertzian Contact-Stress Deformation Coefficients

Journal of Applied Mechanics, 1969
Formulations are given for the coefficients λ, μ, ν defined by Hertz in terms of the solution of a transcendental equation involving elliptic integrals and used by him to describe the deformation of bodies subjected to contact stresses. Methods of approximate calculation are explained and errors in the tables prepared by Hertz are noted.
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Contact Stresses at Ceramic Interfaces

1983
Contact damage at ceramic-ceramic and ceramic-metal interfaces has been identified as an important failure mode for ceramic heat-engine components. Stress distributions determined by closed-form equations and finite element analysis will be reviewed for Hertzian and biaxial loading.
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Contact Stresses in Rolling Bearings

2016
The Hertzian pressure (normal stress) in the contact zone between the ball/roller and raceways causes a plastic deformation of the ball/roller contour. In the contact area, the oil-film thickness is nearly constant at the height h c and reduces to the height at h min at the outflow of the contact zone (cf. Chap. 4). The Hertzian pressure p H in the oil
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Stress, stress-asymmetry and contact moments in granular matter

Granular Matter, 2014
The physical nature of contact moments within granular assemblies is reviewed and a new approach is developed for the homogenisation of stress within these materials. This approach revolves around capturing the effects of contact moments through the concept of contact eccentricity.
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