Results 11 to 20 of about 79,606 (257)

Elastic Rough Surface Contact and the Root Mean Square Slope of Measured Surfaces over Multiple Scales

open access: yesFractal and Fractional, 2021
This study investigates the predictions of the real contact area for perfectly elastic rough surfaces using a boundary element method (BEM). Sample surface measurements were used in the BEM to predict the real contact area as a function of load.
Robert L. Jackson   +3 more
doaj   +1 more source

Asynchronous contact mechanics [PDF]

open access: yesACM Transactions on Graphics, 2009
We develop a method for reliable simulation of elastica in complex contact scenarios. Our focus is on firmly establishing three parameter-independent guarantees: that simulations of well-posed problems (a) have no interpenetrations, (b) obey causality, momentum- and energy-conservation laws, and (c) complete in finite time.
David Harmon   +4 more
openaire   +1 more source

From Geometry to Coherent Dissipative Dynamics in Quantum Mechanics

open access: yesQuantum Reports, 2021
Starting from the geometric description of quantum systems, we propose a novel approach to time-independent dissipative quantum processes according to which energy is dissipated but the coherence of the states is preserved.
Hans Cruz-Prado   +2 more
doaj   +1 more source

FFT-Based Methods for Computational Contact Mechanics

open access: yesFrontiers in Mechanical Engineering, 2020
Computational contact mechanics seeks for numerical solutions to contact area, pressure, deformation, and stresses, as well as flash temperature, in response to the interaction of two bodies.
Q. Jane Wang   +5 more
doaj   +1 more source

Advanced Numerical Methods in Computational Solid Mechanics

open access: yesMathematics, 2023
Efficient numerical solving of nonlinear solid mechanics problems is still a challenging issue which concerns various fields: nonlinear behavior, micromechanics, contact mechanics, damage, crack propagation, rupture, etc [...]
Frédéric Lebon, Isabelle Ramière
doaj   +1 more source

The Painlevé paradox in contact mechanics [PDF]

open access: yesIMA Journal of Applied Mathematics, 2016
The 120-year old so-called Painleve paradox involves the loss of determinism in models of planar rigid bodies in point contact with a rigid surface, subject to Coulomb-like dry friction. The phenomenon occurs due to coupling between normal and rotational degrees-of-freedom such that the effective normal force becomes attractive rather than repulsive ...
Champneys, Alan R, Varkonyi, Peter
openaire   +3 more sources

A case study on the observability of cutting fluid flow and the associated contact mechanics in scaled rough surfaces

open access: yesSN Applied Sciences, 2021
In grinding processes, heat is generated by the contact of the grains with the workpiece. In order to reduce damages on the workpiece and the grinding tool, cutting fluids are necessary for most grinding processes.
Michael Müller   +4 more
doaj   +1 more source

Contact Hamiltonian Description of 1D Frictional Systems

open access: yesCommunications in Advanced Mathematical Sciences, 2021
In this paper, we consider contact Hamiltonian description of 1D frictional dynamics with no conserved force. Friction forces that are monomials of velocity, and sum of two monomials are considered.
Furkan Semih Dündar, Gülhan Ayar
doaj   +1 more source

Contact mechanics analysis of a soft robotic fingerpad

open access: yesFrontiers in Mechanical Engineering, 2022
The precision grasping capabilities of robotic hands is a key feature which is more and more required in the manipulation of objects in several unstructured fields, as for instance industrial, medical, agriculture and food industry. For this purpose, the
Gabriele Maria Achilli   +3 more
doaj   +1 more source

Fractal Contact Mechanics Model for the Rough Surface of a Beveloid Gear with Elliptical Asperities

open access: yesApplied Sciences, 2022
Understanding the contact mechanics of rough tooth surfaces is critical in order to understand phenomena such as tooth surface flash temperature, tooth surface wear, and gear vibration.
Guangbin Yu   +4 more
doaj   +1 more source

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