Results 31 to 40 of about 150,922 (283)

A Class of Quasistatic Contact Problems for Viscoelastic Materials with Nonlocal Coulomb Friction and Time-Delay

open access: yesMathematical Modelling and Analysis, 2014
In this paper, a mathematical model which describes the explicit time dependent quasistatic frictional contact problems is introduced and studied. The material behavior is described with a nonlinear viscoelastic constitutive law with time-delay and the ...
Si-sheng Yao, Nan-jing Huang
doaj   +1 more source

Finite Element Formulation of Forced Vibration Problem of a Prestretched Plate Resting on a Rigid Foundation

open access: yesJournal of Applied Mathematics, 2007
The three-dimensional linearized theory of elastodynamics mathematical formulation of the forced vibration of a prestretched plate resting on a rigid half-plane is given. The variational formulation of corresponding boundary-value problem is constructed.
M. Eröz, A. Yildiz
doaj   +1 more source

A dynamic variation principle for elastic-fluid contacts applied to elastohydrodynamic lubrication theory [PDF]

open access: yes, 1990
This paper discusses the variational structure of the line contact problem between an elastic medium and a fluid. The equations for the deformation in the elastic material, and for the flow of the viscous fluid are assumed to be determined from an ...
Groesen, E. van, Verstappen, R.
core   +5 more sources

A variational formulation of relativistic hydrodynamics

open access: yes, 2009
We combine Taub's and Ray's variational approaches to relativistic hydrodynamics of perfect fluids into another simple formulation.Comment: 3 pages; published ...
Brown   +26 more
core   +1 more source

Variational formulations for TFEM of piezoelectricity [PDF]

open access: yesInternational Journal of Solids and Structures, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

A variational characterization of the risk-sensitive average reward for controlled diffusions on $\mathbb{R}^d$

open access: yes, 2020
We address the variational formulation of the risk-sensitive reward problem for non-degenerate diffusions on $\mathbb{R}^d$ controlled through the drift.
Arapostathis, Ari   +3 more
core   +1 more source

A Variational Formulation for Fins with Nonzero Contact Thermal Resistance at the Base

open access: yesAxioms, 2023
This paper considers the steady-state heat transfer process in a fin with a Robin boundary condition at the base (instead of the usual Dirichlet boundary condition at the base). Robin boundary condition models the effect of the thermal resistance between
Rogério Martins Saldanha da Gama   +3 more
doaj   +1 more source

Geometric Formulation of Edge and Nodal Finite Element Equations in Electromagnetics [PDF]

open access: yes, 2011
Finite element equations for electromagnetic fields are examined, in particular nodal elements using scalar potential formulation and edge elements for vector potential formulation.
Demenko, A., Sykulski, J.K.
core   +1 more source

Variational Bose-Hubbard model revisited

open access: yes, 2013
For strongly interacting bosons in optical lattices the standard description using Bose-Hubbard model becomes questionable. The role of excited bands becomes important.
Major, Jan   +2 more
core   +1 more source

Practical use of variational principles for modeling water waves [PDF]

open access: yes, 2012
This paper describes a method for deriving approximate equations for irrotational water waves. The method is based on a 'relaxed' variational principle, i.e., on a Lagrangian involving as many variables as possible.
Abramowitz   +62 more
core   +5 more sources

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