نتایج جستجو برای: Piezoelectric nanobeam

تعداد نتایج: 14454  

A Ghorbanpour Arani, A.H Ghorbanpour Arani R Kolahchi S.A Mortazavi

Nonlocal vibration of double-smart nanobeam-systems (DSNBSs) under a moving nanoparticle is investigated in the present study based on Timoshenko beam model. The  two  smart  nanobeams (SNB) are  coupled  by  an  enclosing  elastic  medium  which  is  simulated  by  Pasternak foundation. The energy method and Hamilton’s principle are used to establish the equations of motion. The detailed param...

In this paper, design and performance analysis of a resonance nanosensor for earthquake low frequency geoacoustic waves detection is proposed. The model comprises of a proof mass suspended to the substrate, and a nanobeam attached to the intersection of the proof mass to the substrate. The nanobeam could be cosidered as a clamped-clamped nanoresonator actuated electrostartically. The induced ac...

Journal: :AIP Advances 2023

The aim of this paper is to study the electro-mechanical coupling responses functionally graded (FG) piezoelectric cantilever nanobeam under concentrated load, and material properties follow an exponential distribution in thickness direction. constitutive equations are derived from electric Gibbs free energy density function. governing boundary conditions Euler–Bernoulli FG beam can be obtained...

Journal: :Curved and Layered Structures 2023

Abstract In this work, the state -space nonlocal strain gradient theory is used for vibration analysis of magneto thermo piezoelectric functionally graded material (FGM) nanobeam. An FGM constituent properties stated by using power law relations. The refined higher order beam and Hamilton’s principle have been to obtain motion equations. Besides, governing equations nanobeam are extracted devel...

Journal: :Facta Universitatis 2022

The present investigation examines the range of effect nonlocal parameters on dynamic behavior a smart beam-like nanostructure modeled as sandwich functionally graded porous nanobeam with piezoelectric layers. Therefore, study is concentrated determining length structure for which effects are observed vibration under in-plane electro-mechanical forces. nanobeam-based NEMS device model obtained ...

Journal: :Mathematics 2022

This study presents a mathematical size-dependent model capable of investigating the dynamic behavior sandwich perforated nanobeam incorporating flexoelectricity effect. The nonlocal strain gradient elasticity theory is developed for both continuum mechanics and flexoelectricity. Closed forms equivalent geometrical variables are developed. Hamiltonian principle exploited to derive governing equ...

Journal: :Applied Mathematical Modelling 2022

• A model of locally resonant piezoelectric/elastic phononic crystal double-layer nanobeam is proposed. Band structures with nonlocal effects are calculated by plane wave expansion method. Symmetric and antisymmetric bands divided. Influences various parameters on band discussed. The paper proposed a (LR) (PC) periodically attached “spring-mass” resonator additional spring between upper lower n...

A Ghorbanpour Arani, A.H Rahmati M Abdollahian

This paper presents the surface piezomagnetoelasticity theory for size-dependent buckling analysis of an embedded piezoelectric/magnetostrictive nanobeam (PMNB). It is assumed that the subjected forces from the surrounding medium contain both normal and shear components. Therefore, the surrounded elastic foundation is modeled by Pasternak foundation. The nonlocal piezomagnetoelasticity theory i...

Journal: :Advanced electronic materials 2023

Understanding various aspects of ferroelectricity in hafnia-based nanomaterials is vital importance for the development future nonvolatile memory and logic devices. Here, unconventional weak electromechanical response epitaxial La0.67Sr0.33MnO3/Hf0.5Zr0.5O2/La0.67Sr0.33MnO3 ferroelectric capacitors investigated, via sensitivity offered by nanobeam X-ray diffraction experiments during applicatio...

Journal: :Nano letters 2006
Junqiao Wu Qian Gu Beth S Guiton Nathalie P de Leon Lian Ouyang Hongkun Park

We investigated the effect of substrate-induced strain on the metal-insulator transition (MIT) in single-crystalline VO(2) nanobeams. A simple nanobeam-substrate adhesion leads to uniaxial strain along the nanobeam length because of the nanobeam's unique morphology. The strain changes the relative stability of the metal (M) and insulator (I) phases and leads to spontaneous formation of periodic...

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