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On the modeling of industrial processes
=Eduardo N. Dvorkin, Ph.D.= ===On the modeling of industrial processes=== The first requirement for the development of a successful set-up and tight control of a production process is to have an in-depth knowledge of the process technological windows; that is to say, of the locus in the space of the process control variables, where the resulting products meet their specifications. Computational models are nowadays a powerful and reliable tool for simulating different thermo-mechanical-metallurgical processes; hence, they are increasingly being used to investigate the technological windows of different processes in the steel industry, such as continuous casting, hot and cold rolling, heat treatments, etc. Since technological decisions, with high influence on the ecological impact of industrial facilities, on labor conditions and on revenues, are reached based on the results provided by numerical models, it is evident that these models have to be highly reliable. Therefore, it is of the highest importance that sound computational mechanics formulations are used and that the model results are subjected to experimental validation using either industrial or lab measurements. In this seminar we will discuss three computational solid mechanics industrial applications: 1. The modeling of metal forming processes using an Eulerian formulation. We implemented the flow formulation (rigid-viscoplastic material models) via the pseudo-concentrations technique. Several validation examples will be discussed. 2. The modeling of the collapse and post-collapse behavior of marine pipelines using shell element models. Several validation examples will be discussed. 3. The modeling of localization problems in concrete (fracturing) and in metals (shear bands) will be discussed.
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