Results 11 to 20 of about 3,194,424 (284)

A residual based A POSTERIORI error estimator for an augmented mixed finite element method in linear elasticity [PDF]

open access: yes, 2005
In this paper we develop a residual based a posteriori error analysis for an augmented mixed finite element method applied to the problem of linear elasticity in the plane. More precisely, we derive a reliable and efficient a posteriori error estimator
Heuer, N   +16 more
core   +7 more sources

Direct localized boundary-domain integro-differential formulations for physically nonlinear elasticity of inhomogeneous body [PDF]

open access: yes, 2005
A static mixed boundary value problem (BVP) of physically nonlinear elasticity for a continuously inhomogeneous body is considered. Using the two-operator Green-Betti formula and the fundamental solution of an auxiliary linear operator, a non-standard ...
Mikhailov, SE
core   +6 more sources

Realistic computable error bounds for three dimensional finite element analyses in linear elasticity [PDF]

open access: yes, 2011
We obtain a computable estimator for the energy norm of the error in piecewise affine and piecewise quadratic finite element approximations of linear elasticity in three dimensions.
Rankin, Richard Andrew Robert   +1 more
core   +4 more sources

A higher order control volume based finite element method to prodict the deformation of heterogeneous materials [PDF]

open access: yes, 2013
Materials with obvious internal structure can exhibit behaviour, under loading, that cannot be described by classical elasticity. It is therefore important to develop computational tools incorporating appropriate constitutive theories that can capture ...
Wheel, Marcus   +2 more
core   +4 more sources

Principal stress and strain trajectories in non-linear elastostatics [PDF]

open access: yes, 1984
The Maxwell-Lame equations governing the principal components of Cauchy stress for plane deformations are well known in the context of photo-elasticity, and they form a pair of coupled first-order hyperbolic partial differential equations when the ...
Ogden, R W
core   +6 more sources

Income elasticity of Czechs' household demand for meat and meat products: autoregressive model

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2008
The paper is focused on the wider concept of the income-elasticity analysis within of the average Czechs' household demand for the meat and meat products including demand for fish and fish products.
Pavel Syrovátka
doaj   +1 more source

Exact and approximate solutions of Riemann problems in non-linear elasticity [PDF]

open access: yes, 2009
Eulerian shock-capturing schemes have advantages for modelling problems involving complex non-linear wave structures and large deformations in solid media.
Barton, Philip Trevor   +3 more
core   +1 more source

Representation of Waves of Displacements and Micro-rotations by Systems of the Screw Vector Fields [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2020
The present study concerns the coupled vector differential equations of the linear theory of micropolar elasticity formulated in terms of displacements and micro-rotations in the case of a harmonic dependence of the physical fields on time. The system is
Radaev, Yurii Nickolaevich
doaj   +1 more source

Four simplified gradient elasticity models for the simulation of dispersive wave propagation [PDF]

open access: yes, 2008
Gradient elasticity theories can be used to simulate dispersive wave propagation as it occurs in heterogeneous materials. Compared to the second-order partial differential equations of classical elasticity, in its most general format gradient elasticity ...
Pichugin, AV   +7 more
core   +1 more source

The problem of dynamic cavitation in nonlinear elasticity [PDF]

open access: yes, 2012
The notion of singular limiting induced from continuum solutions (slic-solutions) is applied to the problem of cavitation in nonlinear elasticity, in order to re-assess an example of non-uniqueness of entropic weak solutions (with polyconvex energy)
Miroshnikov, Alexey   +5 more
core   +2 more sources

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