Results 1 to 10 of about 692 (53)

A class of reduced-order models in the theory of waves and stability. [PDF]

open access: yesProc Math Phys Eng Sci, 2016
This paper presents a class of approximations to a type of wave field for which the dispersion relation is transcendental. The approximations have two defining characteristics: (i) they give the field shape exactly when the frequency and wavenumber lie ...
Chapman CJ, Sorokin SV.
europepmc   +4 more sources

Phase separation effects and the nematic-isotropic transition in polymer and low molecular weight liquid crystals doped with nanoparticles [PDF]

open access: yes, 2013
Properties of the nematic–isotropic phase transition in polymer and low molecular weight liquid crystals doped with nanoparticles have been studied both experimentally and theoretically in terms of molecular mean-field theory.
Alexey S. Merekalov   +45 more
core   +1 more source

Micropolar curved rods. 2-D, high order, Timoshenko’s and Euler-Bernoulli models

open access: yesCurved and Layered Structures, 2017
New models for micropolar plane curved rods have been developed. 2-D theory is developed from general 2-D equations of linear micropolar elasticity using a special curvilinear system of coordinates related to the middle line of the rod and special ...
Zozulya V.V.
doaj   +1 more source

Nitsche’s method for two and three dimensional NURBS patch coupling [PDF]

open access: yes, 2013
We present a Nitche’s method to couple non-conforming two and three-dimensional NURBS (Non Uniform Rational B-splines) patches in the context of isogeometric analysis (IGA). We present results for linear elastostatics in two and and three-dimensions. The
Bonisoli, E   +4 more
core   +3 more sources

Couple stress theory of curved rods. 2-D, high order, Timoshenko’s and Euler-Bernoulli models

open access: yesCurved and Layered Structures, 2017
New models for plane curved rods based on linear couple stress theory of elasticity have been developed.2-D theory is developed from general 2-D equations of linear couple stress elasticity using a special curvilinear system of coordinates related to the
Zozulya V.V.
doaj   +1 more source

Heterogeneous mathematical models in numerical analysis of structures [PDF]

open access: yes, 1924
This paper presents a common approach to the numerical analysis of elasticity and heat conduction problems in computed structures. It is based on a combination of the linear elasticity theory with Timoshenko's shell theory for elasticity problems, and of
Savula, Y.H., Dyyak, I.I., Krevs, V.V.
core   +1 more source

A Measurement of Newton's Gravitational Constant [PDF]

open access: yes, 2006
A precision measurement of the gravitational constant $G$ has been made using a beam balance. Special attention has been given to determining the calibration, the effect of a possible nonlinearity of the balance and the zero-point variation of the ...
A. H. Slocum   +12 more
core   +2 more sources

Simplified analytical model for tapered sandwich beams using variable stiffness materials [PDF]

open access: yes, 2016
A simplified layer-wise sandwich beam model to capture the effects of a combination of geometric taper and variable stiffness of the core on the static response of a sandwich beam is developed. In the present model, the face sheets are assumed to behave
Ai, Qing, Weaver, Paul M
core   +2 more sources

Reflections on a Measurement of the Gravitational Constant Using a Beam Balance and 13 Tons of Mercury [PDF]

open access: yes, 2014
In 2006, a final result of a measurement of the gravitational constant $G$ performed by researchers at the University of Z\"urich was published. A value of $G=6.674\,252(122)\times 10^{-11}\,\mbox{m}^3\,\mbox{kg}^{-1}\,\mbox{s}^{-2}$ was obtained after ...
Nolting, F.   +4 more
core   +1 more source

Modal Properties and Stability of Bend-Twist Coupled Wind Turbine Blades [PDF]

open access: yes, 2016
Coupling between bending and twist has a significant influence on the aeroelastic response of wind turbine blades. The coupling can arise from the blade geometry (e.g.
Hansen, Morten Hartvig   +2 more
core   +3 more sources

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