Nonlocal Euler-Bernoulli Beam Theories

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Beschreibung

This book presents a comparative study on the static responses of the Euler-Bernoulli beam governed by nonlocal theories, including the Eringen's stress-gradient beam theory, the Mindlin's strain-gradient beam theory, the higher-order beam theory and the peridynamic beam theory. Benchmark examples are solved analytically and numerically using these nonlocal beam equations, including the simply-supported beam, the clamped-clamped beam and the cantilever beam. Results show that beam deformations governed by different nonlocal theories at different boundary conditions show complex behaviors. Specifically, the Eringen's stress-gradient beam equation and the peridynamic beam equation yield a much softer beam deformation for simply-supported beam and clamped-clamped beam, while the beam governed by the Mindlin's strain-gradient beam equation is much stiffer. The cantilever beam exhibits a completely different behavior. The higher-order beam equation can be stiffer or softer depending on the values of the two nonlocal parameters. Moreover, the deformation fluctuation of the truncated order peridynamic beam equation is observed and explained from the singularity aspect of the solution expression. This research casts light on the fundamental explanation of nonlocal beam theories in nano-electromechanical systems.


Gives a fundamental explanation of nonlocal beam theories in nanosystems

Explains the deformation fluctuation of the peridynamic beam equation

Presents a comparative study on the static responses of the EulerBernoulli beam



Autorentext

Dr. Jingkai Chen is currently the instructor (tenure track) at China University of Petroleum (East China). He got his Ph.D degree from Rice University supervised by Prof. Pol D. Spanos. His research interests are drilling engineering, stochastic mechanics and peridynamics.



Inhalt
Chapter 1 IntroductionChapter 2 Eringen's nonlocal beam theories2.1 Eringen's nonlocal theory2.2 Nonlocal beam equation derivationChapter 3 Peridynamic beam theory3.1 Bond-based peridynamics3.2 State-based peridynamics3.3 Peridynamic beam equation derivation3.4 Differential equation representationChapter 4 Analytical solution to benchmark examples4.1 Clamped-clamped beam4.2 Simply-supported beamChapter 5 Numerical solution to integral-form peridynamic beam equation5.1 Boundary condition discussion5.2 Benchmark examples5.2.1 Clamped-clamped beam5.2.2 Simply-supported beamChapter 6 ConclusionReferences & Appendix

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Produktinformationen

Titel
Nonlocal Euler-Bernoulli Beam Theories
Untertitel
A Comparative Study
Autor
EAN
9783030697877
ISBN
978-3-030-69787-7
Format
Kartonierter Einband
Herausgeber
Springer, Berlin
Genre
Allgemeines & Lexika
Anzahl Seiten
59
Gewicht
131g
Größe
H235mm x B235mm x T155mm
Jahr
2021
Untertitel
Englisch
Auflage
1st ed. 2021
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