An Accurate Upper Bound Solution for Plane Strain Extrusion through a Wedge-Shaped Die
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 fr...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/189070 |
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| _version_ | 1832558026710581248 |
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| author | Sergei Alexandrov Yusof Mustafa Yeong-Maw Hwang Elena Lyamina |
| author_facet | Sergei Alexandrov Yusof Mustafa Yeong-Maw Hwang Elena Lyamina |
| author_sort | Sergei Alexandrov |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-44dd75c66fcc48a1b20d322c2c7f5184 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-44dd75c66fcc48a1b20d322c2c7f51842025-02-03T01:33:26ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/189070189070An Accurate Upper Bound Solution for Plane Strain Extrusion through a Wedge-Shaped DieSergei Alexandrov0Yusof Mustafa1Yeong-Maw Hwang2Elena Lyamina3A. Yu. Ishlinskii Institute for Problems in Mechanics, Russian Academy of Sciences, 101-1 Prospect Vernadskogo, Moscow 119526, RussiaFaculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor Darul Ta’zim, MalaysiaDepartment of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 804, TaiwanA. Yu. Ishlinskii Institute for Problems in Mechanics, Russian Academy of Sciences, 101-1 Prospect Vernadskogo, Moscow 119526, RussiaAn 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.http://dx.doi.org/10.1155/2014/189070 |
| spellingShingle | Sergei Alexandrov Yusof Mustafa Yeong-Maw Hwang Elena Lyamina An Accurate Upper Bound Solution for Plane Strain Extrusion through a Wedge-Shaped Die The Scientific World Journal |
| title | An Accurate Upper Bound Solution for Plane Strain Extrusion through a Wedge-Shaped Die |
| title_full | An Accurate Upper Bound Solution for Plane Strain Extrusion through a Wedge-Shaped Die |
| title_fullStr | An Accurate Upper Bound Solution for Plane Strain Extrusion through a Wedge-Shaped Die |
| title_full_unstemmed | An Accurate Upper Bound Solution for Plane Strain Extrusion through a Wedge-Shaped Die |
| title_short | An Accurate Upper Bound Solution for Plane Strain Extrusion through a Wedge-Shaped Die |
| title_sort | accurate upper bound solution for plane strain extrusion through a wedge shaped die |
| url | http://dx.doi.org/10.1155/2014/189070 |
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