Results 31 to 40 of about 18,570,613 (380)

On the Equivalence Problem for Toric Contact Structures on S^3-bundles over S^2$

open access: yes, 2012
We study the contact equivalence problem for toric contact structures on $S^3$-bundles over $S^2$. That is, given two toric contact structures, one can ask the question: when are they equivalent as contact structures while inequivalent as toric contact ...
Banyaga   +11 more
core   +1 more source

Numerical Analysis of a Contact Problem with Wear

open access: yes, 2019
This paper represents a sequel to the previous one, where numerical solution of a quasistatic contact problem is considered for an elastic body in frictional contact with a moving foundation.
Han, Danfu   +3 more
core   +1 more source

General procedure for solution of contact problems under dynamic normal and tangential loading based on the known solution of normal contact problem [PDF]

open access: yes, 2015
In this article, we show that the normal contact problem between two elastic bodies in the half-space approximation can always be transformed to an equivalent problem of the indentation of a profile into an elastic Winkler foundation.
V. Popov, R. Pohrt, M. Hess
semanticscholar   +1 more source

THREE-DIMENSIONAL CONTACT PROBLEM FOR A TRANSVERSELY ISOTROPIC SOLID

open access: yesAdvanced Engineering Research, 2013
The spatial contact problem with an unknown contact domain is investigated for a transversely isotropic elastic half-space the boundary of which is perpendicular to the planes of isotropy.
Dmitry Alexandrovich Pozharskiy   +1 more
doaj   +1 more source

Optimization problems for a viscoelastic frictional contact problem with unilateral constraints

open access: yes, 2019
We consider a mathematical model which describes the contact between a viscoelastic body and a rigid-deformable foundation with memory effects. We derive a variational formulation of the model which is in the form of a history-dependent variational ...
M. Sofonea, Yi-bin Xiao, Maxime Couderc
semanticscholar   +1 more source

On the dynamic contact problem with two deformable stamps [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
The problem of the time-harmonic behavior of two deformable semi-infinite stamps lying on a deformable base is considered. It is assumed that the stamps converge with parallel ends in such a way that they form a crack, defect, or tectonic fault in the ...
Babeshko, Vladimir A.   +5 more
doaj   +1 more source

Asymptotic Approach to Solving the Contact Problem for a Rolling Body with a Thin Deformable Rim

open access: yesМеханика машин, механизмов и материалов, 2023
On the basis of an asymptotic approach to solving the elasticity theory boundary value problem for a thin strip rigidly linked to a non-deformable base, the differential equations are derived for determining the normal and shear loads distributed on the ...
Dmitry A. Chernous, Alena V. Kadnianka
doaj   +1 more source

Contact, Political Solidarity and Collective Action: An Indian Case Study of Relations between Historically Disadvantaged Communities [PDF]

open access: yes, 2017
Research on the contact hypothesis has highlighted the role of contact in improving intergroup relations. Most of this research has addressed the problem of transforming the prejudices of historically advantaged communities, thereby eroding wider ...
Allport   +36 more
core   +2 more sources

Analysis of elastic and elastoplastic models when interpreting nanoindentation results [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
One of the current and widely used non-destructive testing methods for monitoring and determining the elastic properties of materials is nanoindentation.
Panfilov, Ivan A.   +2 more
doaj   +1 more source

Structure of Symmetry Groups via Cartan's Method: Survey of Four Approaches [PDF]

open access: yes, 2005
In this review article we discuss four recent methods for computing Maurer-Cartan structure equations of symmetry groups of differential equations. Examples include solution of the contact equivalence problem for linear hyperbolic equations and finding a
Morozov, Oleg I.
core   +2 more sources

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