Re‐identification problems in forming of rigid‐visco‐poroplastic materials |
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| Authors: | Iwona Pokorska |
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| Affiliation: | Technical University of Czestochowa, 42‐200 Czestochowa, ul. Akademicka 3, Poland |
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| Abstract: | A unified approach for parameter identification of a visco‐poroplastic material model is presented. A repressing powder forging process is analyzed. The numerical solutions for direct and inverse problems have been described. The inverse problem is solved by the use of gradient‐based methods and a sensitivity analysis. Numerical examples of the method proposed are presented, in which one and two parameters of the visco‐poroplastic material model were identified. Copyright © 2007 John Wiley & Sons, Ltd. |
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| Keywords: | identification finite element method sensitivity metal forming |
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