Results 81 to 90 of about 22,368,455 (279)

Riesz basis property of Timoshenko beams with boundary feedback control

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
A Timoshenko beam equation with boundary feedback control is considered. By an abstract result on the Riesz basis generation for the discrete operators in the Hilbert spaces, we show that the closed-loop system is a Riesz system, that is, the sequence of
De-Xing Feng   +2 more
doaj   +1 more source

Pressure–impulse diagrams of RC beams considering fire–blast interaction

open access: yesStructural Concrete, EarlyView.
Abstract When analyzing military, defense, or structures/infrastructures deemed critical, explosion‐induced actions—often associated with malicious actions—play a significant role. The combined effect of a blast and fire is not uncommon: in fact, an explosion can be the extreme consequence of a fire or vice versa, a fire can occur as the result of an ...
Matteo Colombo, Paolo Martinelli
wiley   +1 more source

Decay rate of the solutions to the Cauchy problem of the Lord Shulman thermoelastic Timoshenko model with distributed delay

open access: yesDemonstratio Mathematica
In this study, we address a Cauchy problem within the context of the one-dimensional Timoshenko system, incorporating a distributed delay term. The heat conduction aspect is described by the Lord-Shulman theory.
Choucha Abdelbaki   +3 more
doaj   +1 more source

Vibrations of a Timoshenko beam on an inertial foundation under a moving load

open access: yesMATEC Web of Conferences, 2018
In the paper vibrations of the Timoshenko beam on an inertial foundation subjected to a moving force are discussed. Considered model of the inertial foundation is described by three parameters.
Ataman Magdalena
doaj   +1 more source

On the stability of Timoshenko systems with Gurtin-Pipkin thermal law [PDF]

open access: yesarXiv, 2013
We analyze a differential system describing a Timoshenko beam coupled with a temperature evolution of Gurtin-Pipkin type. A necessary and sufficient condition for exponential stability is established in terms of the structural parameters of the equations.
arxiv  

Well-posedness and stability analysis for Timoshenko beam system with Coleman-Gurtin's and Gurtin-Pipkin's thermal laws

open access: yesOpen Mathematics, 2023
In this article, the effect of Coleman-Gurtin’s and Gurtin-Pipkin’s thermal laws on the displacement of a Timoshenko beam system with suspenders is studied.
Mukiawa Soh Edwin
doaj   +1 more source

Exponential stability of Timoshenko-Gurtin-Pipkin systems with full thermal coupling [PDF]

open access: yesarXiv, 2021
We analyze the stability properties of a linear thermoelastic Timoshenko-Gurtin-Pipkin system with thermal coupling acting on both the shear force and the bending moment. Under either the mixed Dirichlet-Neumann or else the full Dirichlet boundary conditions, we show that the associated solution semigroup in the history space framework of Dafermos is ...
arxiv  

The OÆSE endstation at BESSY II: operando X‐ray absorption spectroscopy for energy materials

open access: yesJournal of Synchrotron Radiation, EarlyView.
The OÆSE endstation at EMIL at the BESSY II synchrotron facility in Berlin allows real‐time investigation of energy materials through operando X‐ray absorption spectroscopy. The possibility to use soft, tender, and hard X‐rays combined with versatile operando sample environments enables the study of a wide range of energy materials under relevant ...
Raul Garcia-Diez   +15 more
wiley   +1 more source

Uniform controllability for Kirchhoff and Mindlin-Timoshenko elastic systems

open access: yesElectronic Journal of Differential Equations, 1999
The Mindlin-Timoshenko operator is a perturbation of the Kirchhoff operator and it is well known that there exist solutions to the exact controllability problem for their associated systems.
Miguel Angel Moreles
doaj  

Analysis of Critical Velocities for an Infinite Timoshenko Beam Resting on an Elastic Foundation Subjected to a Harmonic Moving Load

open access: yesShock and Vibration, 2014
Critical velocities are investigated for an infinite Timoshenko beam resting on a Winkler-type elastic foundation subjected to a harmonic moving load. The determination of critical velocities ultimately comes down to discrimination of the existence of ...
Bin Zhen, Wei Luo, Jian Xu
doaj   +1 more source

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