Results 11 to 20 of about 198 (163)

Range of Motion and Neutral Zone of All Human Spinal Motion Segments: A Data Collection of 30 Years of In Vitro Experiments Performed Under Standardized Testing Conditions. [PDF]

JOR Spine
A comprehensive overview of the range of motion (RoM) and neutral zone (NZ) values of all spinal levels is presented, which were collected during 30 years of in vitro experiments under standardized testing conditions in one institution. This unique summary of RoM and NZ data, acquired under the same loading conditions in the same testing device ...
Wilke HJ, Kienle A, Werner K, Liebsch C.
europepmc   +2 more sources

A Scaled Boundary Finite-Element Method with B-Differentiable Equations for 3D Frictional Contact Problems

Fractal and Fractional, 2022
Contact problems are among the most difficult issues in mathematics and are of crucial practical importance in engineering applications. This paper presents a scaled boundary finite-element method with B-differentiable equations for 3D frictional contact
Binghan Xue, Xueming Du, Jing Wang, Xiang Yu   +3 more
doaj   +1 more source

A construction algorithm for full parametric analytical solutions in the basic mixed problem of elastostatics for the simply connected body

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
Using analytical solutions to analyze the state of the bodies at the research and engineering calculations provides computing resources. We propose a methodology for structuring full parametric solutions to the problems of mathematical physics, including
Viktor B Penkov, Olga S Novikova, Lyubov V Levina   +2 more
doaj   +1 more source

The Stokes Paradox in Inhomogeneous Elastostatics [PDF]

Journal of Elasticity, 2020
We prove that the displacement problem of inhomogeneous elastostatics in a two--dimensional exterior Lipschitz domain has a unique solution with finite Dirichlet integral $\u$, vanishing uniformly at infinity if and only if the boundary datum satisfies a suitable compatibility condition (Stokes' paradox).
Adele Ferone, Remigio Russo, Alfonsina Tartaglione   +2 more
openaire   +2 more sources

Scaling in Anti-Plane Elasticity on Random Shear Modulus Fields with Fractal and Hurst Effects

Fractal and Fractional, 2021
The scale dependence of the effective anti-plane shear modulus response in microstructures with statistical ergodicity and spatial wide-sense stationarity is investigated.
Yaswanth Sai Jetti, Martin Ostoja-Starzewski   +1 more
doaj   +1 more source

Finite element formulations for 3D convex polyhedra in nonlinear continuum mechanics

Computer Assisted Methods in Engineering and Science, 2017
In this paper, we present finite element formulations for general three-dimensional convex polyhedra for use in a common finite element framework that are well suited, e.g., for modeling complex granular materials and for mesh refinements.
Markus Kraus, Paul Steinmann
doaj   +1 more source

The Green's and the Eshelby's identities in generalised continua and in dielectrics [PDF]

Theoretical and Applied Mechanics, 2003
In 1973, A. E. Green pointed out several interesting formulae, which hold true in finite elasticity [1]. One of them (formula (2.10), p.75) is repeatedly quoted in the literature as the Green identity.
Trimarco Carmine
doaj   +1 more source

Pragmatic solvers for 3D Stokes and elasticity problems with heterogeneous coefficients: evaluating modern incomplete LDL^T preconditioners [PDF]

Solid Earth, 2020
The need to solve large saddle point systems within computational Earth sciences is ubiquitous. Physical processes giving rise to these systems include porous flow (the Darcy equations), poroelasticity, elastostatics, and highly viscous flows (the Stokes
P. Sanan, D. A. May, M. Bollhöfer, O. Schenk   +3 more
doaj   +1 more source

A degenerating Robin-type traction problem in a periodic domain

Mathematical Modelling and Analysis, 2023
We consider a linearly elastic material with a periodic set of voids. On the boundaries of the voids we set a Robin-type traction condition. Then, we investigate the asymptotic behavior of the displacement solution as the Robin condition turns into a ...
Matteo Dalla Riva, Gennady Mishuris, Paolo Musolino   +2 more
doaj   +1 more source

Elastostatics

, 1987
In this chapter, we are going to describe the main features as well as the basic steps of the Boundary Element Method (BEM) as applied to elastostatic problems and to compare them with other numerical procedures. As we shall show, it is easy to appreciate the adventages of the BEM, but it is also advisable to refrain from a possible unrestrained ...
Gómez Lera, Sagrario, Alarcón Álvarez, Enrique   +1 more
openaire   +3 more sources