New Analytical Solutions For A Flat Rounded Punch Compared With FEM
Author(s)
J. Jäger
Abstract
New analytical solutions for a flat rounded
punch compared with FEM
J. Jager
Lauterback Verfahrenstechnik, Germany
Abstract
Recently, a generalized Coulomb law for elastic bodies in contact was developed
by the author and several applications for elastic half-planes, half-spaces, thin and
thick layers and impact problems have been published. This theory assumes that
the tangential traction is the difference of the slip stress of the contact and the stick
area, and each stick area is a smaller contact area. It holds for multiple contact
regions also. For plane contact of equal bodies with friction, it provides exact
solutions and the interior stress field can be expressed with analytical results in
closed form. In this article, a symmetric superposition of flat punch solutions is
outlined and some useful formulas are listed. The necessary assumptions and
simplifications are discussed. It is shown that this superposition satisfies
Coulomb's inequalities directly and can also be u
Keywords
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