Prediction of process parameters on stress and strain fields in hot rolling process using finite element method
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- Journal Article
- Information Technology Journal, 2011, 10 (12), pp. 2406 - 2412
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To predict the distribution of stress and strain fields in hot rolling process, the computer models are built using rigid-plastic finite element method and are calculated using up-dated Lagrange method. The workpiece and the work-roll are defined as the deformation body and the rigid body with heat transfer, respectively. All kinds of heat boundary conditions, initial boundary and heat generation are introduced in the model. The analysis is capable of considering the effects of various parameters such as rolling speed, reduction ratio and tension rolling on effective strain, effective stress, contact normal stress and friction stress. In addition, the distributions of stress and strain and strain history are also calculated along contact arc length and thickness direction in the hot rolling process. To assess the reliability of the numerical analysis, a comparison is made between the prediction results and published literature and a reasonable agreement is obtained in this study. © 2011 Asian Network for Scientific Information.
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