Résultats exploitables
The research has been centred on 2 fronts:
development of the numerical tools necessary to undertake the numerical simulations;
development of the experimental facilities for the practical measurement phase.
The computational work has involved the development of consistent linearisation processes for both the elastoplastic material response and contact friction phenomenon to produce solution algorithms which are robust and exhibit quadratic convergence rates.
Coupling between the thermal and mechanical behaviour has been implemented and constitutive laws have also been included to account for microstructural changes taking place during deformation.
The experimental facilities have been tested and modified in the light of trial results. Experimental data have been produced for both the spike forming and hot flat rolling tests in the form of viscoplasticity plots, displacement histories and load and torque measurements.
It is expected that the exploitation of the computational models developed in this project will contribute positively to improved efficiencies in the forging and rolling industries. Furthermore, by designing the computational approach specifically for low cost workstations, the end products of the project will particularly benefit the less favoured European regions.
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