Nanomechanics
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Nanomechanics is a branch of
Nanomechanics is that branch of nanoscience which deals with the study and application of fundamental mechanical properties of physical systems at the nanoscale, such as elastic, thermal and kinetic material properties.
Often, nanomechanics is viewed as a branch of
Some of the well-established fields of nanomechanics are:
As a fundamental science, nanomechanics is based on some
General mechanics principles include:
- Energy and momentum conservation principles
- Variational Hamilton's principle
- Symmetry principles
Due to smallness of the studied object, nanomechanics also accounts for:
- Discreteness of the object, whose size is comparable with the interatomic distances
- Plurality, but finiteness, of degrees of freedom in the object
- Importance of thermal fluctuations
- Importance of entropic effects (see configuration entropy)
- Importance of quantum effects (see quantum machine)
These principles serve to provide a basic insight into novel mechanical properties of nanometer objects. Novelty is understood in the sense that these properties are not present in similar macroscale objects or much different from the properties of those (e.g., nanorods vs. usual macroscopic beam structures). In particular, smallness of the subject itself gives rise to various surface effects determined by higher surface-to-volume ratio of
Quantum effects determine
Subsequent utilization of the
Quantum effects also determine novel electrical, optical and chemical properties of
See also
- Molecular machine
- Geometric phase (section Stochastic Pump Effect)
- Nanoelectromechanical relay
References
- Sattler KD. Handbook of Nanophysics: Vol. 1 Principles and Methods. CRC Press, 2011.
- Bhushan B (editor). Springer Handbook of Nanotechnology, 2nd edition. Springer, 2007.
- Liu WK, Karpov EG, Park HS. Nano Mechanics and Materials: Theory, Multiscale Methods and Applications. Wiley, 2006.
- Cleland AN. Foundations of Nanomechanics. Springer, 2003.
- Valeh I. Bakhshali. Nanomechanics and its applications: mechanical properties of materials. International E-Conference on Engineering, Technology and Management - ICETM 2020.
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