Results 81 to 90 of about 22,117,889 (280)

Surface Elasticity Based Nonlocal Vibration Analysis of Bidirectional Functionally Graded Tapered Nanobeam

open access: yesAdvanced Theory and Simulations, EarlyView.
This work proposes a surface elasticity‐based nonlocal model for analyzing the vibrations of bi‐directionally graded tapered nanobeam. The results demonstrate that, in absence of surface effect, the increasing value of tapered parameter leads to stiffness‐hardening of the nanobeam. However, the consideration of surface effect changes this trend and the
Chinika Dangi, Susmita Naskar
wiley   +1 more source

Exponential stability for a Timoshenko-type system with history

open access: yesJournal of Mathematical Analysis and Applications, 2011
AbstractIn this paper, we consider hyperbolic Timoshenko-type vibrating systems that are coupled to a heat equation modeling an expectedly dissipative effect through heat conduction. We use the semigroup method to prove the exponential stability result with assumptions on past history relaxation function g exponentially decaying for the equal wave ...
Zhiyong Ma   +2 more
openaire   +2 more sources

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios   +4 more
wiley   +1 more source

Harnessing Discrete Differential Geometry: A Virtual Playground for the Bilayer Soft Robots

open access: yesAdvanced Intelligent Systems, EarlyView.
A discrete differential geometry‐based framework is developed to model the mechanics of bilayer structures with asymmetric geometry and material properties. The simulations capture dynamic bending and contact interactions in soft robotic grasping, crawling, jumping, and swimming, demonstrating the framework's versatility for programmable shape morphing
Jiahao Li   +6 more
wiley   +1 more source

Laboratory‐Based Time‐Resolved In Situ X‐Ray Absorption Spectroscopy for Tracking Transformations of Working Electrocatalysts

open access: yesChemistry–Methods, EarlyView.
The experimental setup presented in this work combining laboratory‐based X‐ray absorption spectroscopy with an electrochemical reactor advances the fundamental understanding of electrocatalysts at extended time scales. By the example of the electrochemical reduction of CO2, the parameters are discussed that are relevant for optimizing the system to ...
Martina Rüscher   +6 more
wiley   +1 more source

Property of growth determined by the spectrum of operator associated to Timoshenko system with memory [PDF]

open access: yesMathematica Moravica, 2019
In this manuscript we prove the property of growth determined by spectrum of the linear operator associated with the Timoshenko system with two histories.
Ribeiro-Alves Ronaldo   +2 more
doaj  

Stability and Controllability results for a Timoshenko system

open access: yes, 2019
In this paper, we study the indirect boundary stability and exact controllability of a one-dimensional Timoshenko system. In the first part of the paper, we consider the Timoshenko system with only one boundary fractional damping. We first show that the system is strongly stable but not uniformly stable.
Akil, Mohammad   +3 more
openaire   +2 more sources

Spectral analysis and system of fundamental solutions for Timoshenko beams

open access: yesApplied Mathematics Letters, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xu, GQ, Vu, QP, Wang, JM, Yung, SP
openaire   +5 more sources

Exponential stability for the Timoshenko system with two weak dampings

open access: yesApplied Mathematics Letters, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mauro Santos   +3 more
openaire   +3 more sources

A new 3D-beam finite element including non-uniform torsion with the secondary torsion moment deformation effect [PDF]

open access: yes, 2013
In this paper, a new 3D Timoshenko linear-elastic beam finite element including warping torsion will be presented which is suitable for analysis of spatial structures consisting of constant open and hollow structural section (HSS) beams.
Aminbaghai, Mehdi   +3 more
core  

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