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An accurate upper bound solution for plane strain extrusion through a wedge-shaped die

Alexandrov, Sergei and Yusof, Mustafa and Hwang, Yeong Maw and Lyamina, Elena (2014) An accurate upper bound solution for plane strain extrusion through a wedge-shaped die. Scientific World Journal, 2014 . ISSN 2356-6140

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Official URL: http://dx.doi.org/10.1155/2014/189070

Abstract

An upper bound method for the process of plane strain extrusion through a wedge-shaped die is derived. A technique for constructing a kinematically admissible velocity field satisfying the exact asymptotic singular behavior of real velocity fields in the vicinity of maximum friction surfaces (the friction stress at sliding is equal to the shear yield stress on such surfaces) is described. Two specific upper bound solutions are found using the method derived. The solutions are compared to an accurate slip-line solution and it is shown that the accuracy of the new method is very high.

Item Type:Article
Uncontrolled Keywords:analytic method, article, friction, kinematics, plane strain extrusion, shear stress
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:51758
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 03:53
Last Modified:27 Aug 2018 03:24

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