Results 61 to 70 of about 22,368,455 (279)
Vibration of a Reissner–Mindlin–Timoshenko plate–beam system [PDF]
Mathematical and Computer Modelling, 2009 In this paper, we consider a plate-beam system in which the Reissner-Mindlin plate model is combined with the Timoshenko beam model. Natural frequencies and vibration modes for the system are calculated using the finite element method. The interface conditions at the contact between the plate and beams are discussed in some detail.
Labuschagne, A +2 more
openaire +2 more sources
Dynamic Stiffness Matrix for a Beam Element with Shear Deformation
Shock and Vibration, 1995 A method for calculating the dynamic transfer and stiffness matrices for a straight Timoshenko shear beam is presented. The method is applicable to beams with arbitrarily shaped cross sections and places no restrictions on the orientation of the element ...
Walter D. Pilkey, Levent Kitiş
doaj +1 more source
On a non local non-homogeneous fractional Timoshenko system with frictional and viscoelastic damping terms [PDF]
arXiv, 2022 We are devoted to the study of a nonhomogeneous time-fractional Timoshenko system with frictional and viscoelastic damping terms. We are concerned with the well-posedness of the given problem. The approach relies on some functional-analysis tools, operator theory, a prori estimates, and density arguments.
arxiv
The stability number of the Timoshenko system with second sound
Journal of Differential Equations, 2012 AbstractIn this work, we consider the Timoshenko beam model with second sound. We introduce a new number χ0 that characterizes the exponential decay. We prove that the corresponding semigroup associated to the system is exponentially stable if and only if χ0=0. Otherwise there is a lack of exponential stability. In this case we prove that the semigroup
Mauro Santos +2 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.The seed pod valves of Australian Banksia attenuata plants are not simply bi‐layers which bend when dry. These experiments and models reveal complex mechanics, which allow seed release only after several steps of seed pod opening. Stiffness gradients prevent delamination of the valves during loading, and a shape‐memory function protects the seeds ...
Friedrich Reppe +7 more
wiley +1 more source
Stability of thermoelastic Timoshenko system with variable delay in the internal feedback
Electronic Research ArchiveBased on the Fourier law of heat conduction, this paper was concerned with the thermoelastic Timoshenko system with memory and variable delay in the internal feedback, which describes the transverse vibration of a beam. By the Lummer-Phillips theorem and
Xinfeng Ge, Keqin Su
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Vibration characteristics of axially loaded tapered Timoshenko beams made of functionally graded materials by the power series method [PDF]
Numerical Methods in Civil Engineering, 2017 :In the present article, a semi-analytical technique to investigate free bending vibration behavior of axially functionally graded non-prismatic Timoshenko beam subjected to a point force at both ends is developed based on the power series expansions ...
M. Soltani
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Polynomial stability of thermoelastic Timoshenko system with non-global time-delayed Cattaneo's law [PDF]
arXiv, 2023 In this paper, we consider a one dimensional thermoelastic Timoshenko system in which the heat flux is given by Cattaneo's law and acts locally on the bending moment with a time delay. We prove its well-posedness, strong stability, and polynomial stability.
arxiv
Open MathematicsIn this study, we consider a viscoelastic Shear beam model with no rotary inertia. Specifically, we study ρ1φtt−κ(φx+ψ)x+(g∗φxx)(t)=0,−bψxx+κ(φx+ψ)=0,\begin{array}{rcl}{\rho }_{1}{\varphi }_{tt}-\kappa {\left({\varphi }_{x}+\psi )}_{x}+\left(g\ast ...
Al-Mahdi Adel M.
doaj +1 more source
Mathematical methods in the applied sciences, 2020 In this paper, our main goal is to study the stability of the thermoelastic Timoshenko beam with locally distributed temperature. Then, we consider the transmission problem of the Timoshenko system in thermoelasticity with two concentrated masses.
W. Youssef
semanticscholar +1 more source