Simulation of hot shape rolling by using plastic material response

Abstract eng:
In this work, a numerical simulation of hot shape rolling is done by using a novel Local Radial Basis Function Collocation Method (LRBFCM). This meshless method requires no integration or any mesh generation (polygonisation). The simulation is based on strong form mechanical and thermal models. Overall, this 3D rolling process is reduced to 2D slices, used as computational domains, aligned towards the rolling direction. On each slice the deformation and temperature fields are calculated by assuming that there is no strain or heat flow in the rolling direction. By this approach large deformations can be calculated through a series of small deformation increments on each slice. Ideal plastic material model is considered in the calculations. A computer application based on C# is developed to analyze and visualize the results of this method. Simulation of continuous steel rolling mill is considered as demonstration of the approach.

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