Results 91 to 100 of about 22,117,889 (280)

Optimal indirect stability of a weakly damped elastic abstract system of second order equations coupled by velocities

, 2018
In this paper, by means of the Riesz basis approach, we study the stability of a weakly damped system of two second order evolution equations coupled through the velocities.
Abdallah, Farah, Chitour, Yacine, Ghader, Mouhammad, Wehbe, Ali   +3 more
core   +2 more sources

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

Shock 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

RC beam‐column element for simulating nonlinear shear‐flexural behavior

Structural Concrete, EarlyView.
Abstract This paper presents a precise and straightforward solution for simulating the behavior of reinforced concrete (RC) beam‐column elements subjected to bending and shearing forces. The solution is compatible with the fiber element formulation used within object‐oriented software frameworks like OpenSees.
L. M. Gil‐Martín, E. Hernández‐Montes   +1 more
wiley   +1 more source

Is There a Negative Thermal Expansion in Supported Metal Nanoparticles? An In-Situ X-ray Absorption Study Coupled with Neural Network Analysis

, 2019
Interactions with their support, adsorbates and unique structural motifs are responsible for the many intriguing properties and potential applications of supported metal nanoparticles (NPs).
Ahmadi, M., Roldan Cuenya, B., Timoshenko, J.   +2 more
core   +1 more source

Uniform decay in a Timoshenko-type system with past history

Journal of Mathematical Analysis and Applications, 2009
AbstractFernández Sare and Rivera [H.D. Fernández Sare, J.E. Muñoz Rivera, Stability of Timoshenko systems with past history, J. Math. Anal. Appl. 339 (1) (2008) 482–502] considered the following Timoshenko-type systemρ1φtt−K(φx+ψ)x=0,ρ2ψtt−bψxx+∫0∞g(t)ψxx(t−s,.)ds+K(φx+ψ)=0, where g is a positive differentiable exponentially decaying function.
Messaoudi, Salim A., Said-Houari, Belkacem   +1 more
openaire   +4 more sources

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

Open 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

Multi‐performance‐based optimal design method of locally resonant metastructures for structural control

Computer-Aided Civil and Infrastructure Engineering, EarlyView.
Abstract Locally resonant metamaterials (LRMs) have been extensively investigated for wave attenuation; however, the interaction between their bandgaps and a structure's modal dynamics remains relatively unexplored. To address this gap, a design framework is presented to quantify and enhance the structural control performance enabled by LRM‐induced ...
Jewoo Choi, Su An Jang, Hyo Seon Park
wiley   +1 more source

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

Demonstratio 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, Boulaaras Salah, Jan Rashid, Alnegga Mohammad   +3 more
doaj   +1 more source

The Haber Bosch Catalyst from Solid state Chemistry to Mesotechnology

Advanced Energy Materials, Volume 15, Issue 33, September 2, 2025.
A comprehensive, multi‐scale, multi‐modal study of the structural diversity of a technical multi‐promoted Haber Bosch catalyst for ammonia synthesis is provided. The different contributions of ammonia Fe are revealed and the presence of cement phases that have yet not been incorporated into discussions on the function of this catalyst system is shown ...
Kassiogé Dembélé, Jihao Wang, Maxime Boniface, Jan Folke, Luis Sandoval Diaz, Frank Girgsdies, Adnan Hammud, David Kordus, Gregor Koch, Zahra Gheisari, Raoul Blume, Wulyu Jiang, Axel Knop‐Gericke, Rene Eckert, Stephan Reitmeier, Andreas Reitzmann, Robert Schlögl, Beatriz Roldan Cuenya, Janis Timoshenko, Holger Ruland, Thomas Lunkenbein   +20 more
wiley   +1 more source

Dirac structures and boundary control systems associated with skew-symmetric differential operators [PDF]

Associated with a skew-symmetric linear operator on the spatial domain $[a,b]$ we define a Dirac structure which includes the port variables on the boundary of this spatial domain. This Dirac structure is a subspace of a Hilbert space.
Le Gorrec, Y., Maschke, B., Zwart, H.J.
core   +8 more sources