D. Balagangadhar et al., A displacement-based reference frame formulation for steady-state thermo-elasto-plastic material processes, INT J SOL S, 36(16), 1999, pp. 2397-2416
A reference frame formulation for steady state thermo-elasto-plastic proces
ses is presented. The displacement and history dependent response fields ap
pear as the primary variables in this mixed formulation. Unlike displacemen
t based Lagrangian formulations, our formulation does not require a transie
nt analysis to simulate a steady state process and yields results that are
free of numerical oscillations and which require considerably less computat
ional effort. And unlike velocity based Eulerian methods, our formulation d
oes not require free surface corrections or streamline integration algorith
ms. A laser surface treatment process is simulated acid our results are ih
agreement with those obtained from a computationally intensive transient La
grangian analysis. (C) 1999 Elsevier Science Ltd. All rights reserved.