Exploring the Limits of Euler–Bernoulli Theory in Micromechanics

In this study, the limits of the Euler–Bernoulli theory in micromechanics are explored. Raman spectroscopy, which is extremely accurate and reliable, is employed to study the bending of a microbeam of a length of 191 μm. It is found that at the micro-scale, the Euler–Bernoulli theory remains an exac...

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Main Authors: Chrysoula K. Manoli, Styliani Papatzani, Dionysios E. Mouzakis
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Axioms
Subjects:
Online Access:https://www.mdpi.com/2075-1680/11/3/142
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author Chrysoula K. Manoli
Styliani Papatzani
Dionysios E. Mouzakis
author_facet Chrysoula K. Manoli
Styliani Papatzani
Dionysios E. Mouzakis
author_sort Chrysoula K. Manoli
collection DOAJ
description In this study, the limits of the Euler–Bernoulli theory in micromechanics are explored. Raman spectroscopy, which is extremely accurate and reliable, is employed to study the bending of a microbeam of a length of 191 μm. It is found that at the micro-scale, the Euler–Bernoulli theory remains an exact and consistent tool, and, possibly, other elasticity theories (such as micropolar theory, gradient elasticity theory, and couple stress theory) are not always required to study this phenomenon. More specifically, good correlation was achieved between the theoretical and experimental results, the former acquired via the theoretical equations and the latter obtained with the use of atomic force microscopy and Raman spectroscopy. The exact predicted strain of an atomic force microscope microbeam under bending, by Euler–Bernoulli equations is confirmed by Raman spectroscopy.
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spelling doaj.art-da9b018cd5984a8d826c614765c85dd72023-11-30T20:50:30ZengMDPI AGAxioms2075-16802022-03-0111314210.3390/axioms11030142Exploring the Limits of Euler–Bernoulli Theory in MicromechanicsChrysoula K. Manoli0Styliani Papatzani1Dionysios E. Mouzakis2Laboratory of Mechanics, Department of Mathematics and Engineering Sciences, Hellenic Army Academy, Evelpidon Avenue, Vari, 166 72 Attica, GreeceLaboratory of Mechanics, Department of Mathematics and Engineering Sciences, Hellenic Army Academy, Evelpidon Avenue, Vari, 166 72 Attica, GreeceLaboratory of Mechanics, Department of Mathematics and Engineering Sciences, Hellenic Army Academy, Evelpidon Avenue, Vari, 166 72 Attica, GreeceIn this study, the limits of the Euler–Bernoulli theory in micromechanics are explored. Raman spectroscopy, which is extremely accurate and reliable, is employed to study the bending of a microbeam of a length of 191 μm. It is found that at the micro-scale, the Euler–Bernoulli theory remains an exact and consistent tool, and, possibly, other elasticity theories (such as micropolar theory, gradient elasticity theory, and couple stress theory) are not always required to study this phenomenon. More specifically, good correlation was achieved between the theoretical and experimental results, the former acquired via the theoretical equations and the latter obtained with the use of atomic force microscopy and Raman spectroscopy. The exact predicted strain of an atomic force microscope microbeam under bending, by Euler–Bernoulli equations is confirmed by Raman spectroscopy.https://www.mdpi.com/2075-1680/11/3/142Euler–Bernoulli beam theorymicrobeam bendingRaman spectroscopyAFMsmall deformations
spellingShingle Chrysoula K. Manoli
Styliani Papatzani
Dionysios E. Mouzakis
Exploring the Limits of Euler–Bernoulli Theory in Micromechanics
Axioms
Euler–Bernoulli beam theory
microbeam bending
Raman spectroscopy
AFM
small deformations
title Exploring the Limits of Euler–Bernoulli Theory in Micromechanics
title_full Exploring the Limits of Euler–Bernoulli Theory in Micromechanics
title_fullStr Exploring the Limits of Euler–Bernoulli Theory in Micromechanics
title_full_unstemmed Exploring the Limits of Euler–Bernoulli Theory in Micromechanics
title_short Exploring the Limits of Euler–Bernoulli Theory in Micromechanics
title_sort exploring the limits of euler bernoulli theory in micromechanics
topic Euler–Bernoulli beam theory
microbeam bending
Raman spectroscopy
AFM
small deformations
url https://www.mdpi.com/2075-1680/11/3/142
work_keys_str_mv AT chrysoulakmanoli exploringthelimitsofeulerbernoullitheoryinmicromechanics
AT stylianipapatzani exploringthelimitsofeulerbernoullitheoryinmicromechanics
AT dionysiosemouzakis exploringthelimitsofeulerbernoullitheoryinmicromechanics