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The original work in contact mechanics dates back to 1881 with the publication of the paper "On the contact of elastic solids" [3] "Über die Berührung fester elastischer Körper" by Heinrich Hertz. Hertz attempted to understand how the optical properties of multiple, stacked lenses might change with the force holding them together.
With respect to contact mechanics the classical contribution by Heinrich Hertz [4] stands out. Further the fundamental solutions by Boussinesq and Cerruti are of primary importance for the investigation of frictional contact problems in the (linearly) elastic regime.
As an example, an illustration of the classic Hertz contact model is shown in the figure on the right. In such model, the contact is explained by the local deformation of bodies. More contact models can be found in some review scientific works [3] [4] [5] or in the article dedicated to contact mechanics.
Jean M. The non-smooth contact dynamics method. Computer Methods in Applied mechanics and Engineering 177(3-4):235-257, 1999; Moreau J.J. Unilateral Contact and Dry Friction in Finite Freedom Dynamics, volume 302 of Non-smooth Mechanics and Applications, CISM Courses and Lectures. Springer, Wien, 1988
Despite preceding his great work on electromagnetism (which he himself considered with his characteristic soberness to be trivial [24]), Hertz's research on contact mechanics has facilitated the age of nanotechnology. Hertz also described the "Hertzian cone", a type of fracture mode in brittle solids caused by the transmission of stress waves. [38]
Open the System Mechanic software installed on your computer and click on the Help link in the upper right corner of the window. This will take you to a product manual which covers several troubleshooting topics. A Contact iolo link will take you to the company’s tech support mailing address, phone number, etc.
It can also be formulated as the instantaneous rate of change of the number of rotations, N, with respect to time, t: n=dN/dt (as per International System of Quantities). [4] Similar to ordinary period , the reciprocal of rotational frequency is the rotation period or period of rotation , T = ν −1 = n −1 , with dimension of time (SI unit ...
Bearing pressure is a particular case of contact mechanics often occurring in cases where a convex surface (male cylinder or sphere) contacts a concave surface (female cylinder or sphere: bore or hemispherical cup). Excessive contact pressure can lead to a typical bearing failure such as a plastic deformation similar to peening.