Determining Young’s and shear moduli of a rod-shaped object in an AFM bending test
https://doi.org/10.17586/2220-8054-2024-15-1-122-129
Abstract
The technique of AFM bending test of a suspended nanoobject has been improved. An analytical method has been created for calculating Young’s and shear moduli of object’s material based on data of such tests. In Timoshenko approximation, we consider problems of bending a beam one or both ends of which lie on elastic Winkler foundations. The obtained solutions are used to eliminate uncertainties in the calculation of elastic moduli that arise when the conditions of fixing an object (console or bridge) on the edges of a recess in the substrate are unknown.
Supporting agencies: This work was supported by the Russian Science Foundation, project no. 19-1300151
About the Authors
A. A. Ankudinov
Ioffe Institute
Russian Federation
Russian Federation
Alexander V. Ankudinov
Polytekhnicheskaya, 26, St. Petersburg, 194021
M. S. Dunaevskiy
Ioffe Institute
Russian Federation
Russian Federation
Mikhail S. Dunaevskiy
Polytekhnicheskaya, 26, St. Petersburg, 194021
A. A. Krasilin
Ioffe Institute.
Russian Federation
Russian Federation
Andrei A. Krasilin
Polytekhnicheskaya, 26, St. Petersburg, 194021
M. M. Khalisov
Ioffe Institute; Pavlov Institute of Physiology, Russian Academy of Sciences
Russian Federation
Russian Federation
Maksim M. Khalisov – Ioffe Institute; Pavlov Institute of Physiology, Russian Academy of Sciences.
Polytekhnicheskaya, 26, St. Petersburg, 194021; Makarova emb., 6, St. Petersburg, 199034
E. K. Khrapova
Ioffe Institute
Russian Federation
Russian Federation
Ekaterina K. Khrapova
Polytekhnicheskaya, 26, St. Petersburg, 194021
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Review
For citations:
Ankudinov A.A., Dunaevskiy M.S., Krasilin A.A., Khalisov M.M., Khrapova E.K. Determining Young’s and shear moduli of a rod-shaped object in an AFM bending test. Nanosystems: Physics, Chemistry, Mathematics. 2024;15(1):122-129. https://doi.org/10.17586/2220-8054-2024-15-1-122-129
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