Abstract
The main objective of the paper is to show that the yield criteria chosen can have a significant effect on engineering applications of plane-strain rigid/plastic solutions for piece-wise homogeneous materials. The starting point of the concept is that experimental data are usually available for the tensile yield stress whereas the mathematical formulation requires the shear yield stress. Due to this fact, the interpretation of solutions for engineering applications depends on the yield criterion chosen for each material of multi- material composition. The paper deals with the problem of planar flow of three-layer material through a convergent wedge-shaped channel. Results of this research may be applied in the modeling of plastic deformation processes such as extrusion and drawing, to improve the accuracy of theoretical prediction of simultaneous plastic flow of materials with different mechanical properties.
Original language | English |
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Pages (from-to) | 697-708 |
Number of pages | 12 |
Journal | Archives of Metallurgy and Materials |
Volume | 50 |
Issue number | 3 |
Publication status | Published - 2005 |
Keywords
- Bi-material interface
- Planar flow
- Three-layer material
- Wedge-shape channel
- Yield criterion