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Desarrollo de una RNA para controlar el proceso de conformado en caliente

Authors: Alcelay Larrión, José Ignacio; Peña Pitarch, Esteve; Al Omar Mesnaoui, Anas;

Desarrollo de una RNA para controlar el proceso de conformado en caliente

Abstract

El comportamiento del conformado en caliente de un acero microaleado de medio carbono ha sido analizado mediante una red neuronal artificial (RNA). Mediante la RNA obtenenemos los valores de la tensión de fluencia y a partir de los resultados se construyen los mapas de procesado basados en el modelo dinámico de materiales (DMM). Las curvas de fluencia para el entrenamiento de la RNA han sido obtenidas mediante ensayos de compresión en caliente que se efectuaron a temperaturas que oscilaron entre 1150ºC y 900ºC a incrementos de 50°C, y en un intervalo de velocidades de deformación que varió entre 10-4 y 10 s-1 . Se ha podido comprobar que el modelo de RNA, desarrollado en el presente trabajo, es capaz de predecir con exactitud y eficiencia el comportamiento de fluencia en caliente del acero estudiado y existe un buen acuerdo entre los resultados experimentales y los resultados de la RNA. El estudio de los mapas revela los diferentes dominios de la fluencia plástica del acero estudiado y muestra la gran similitud entre los resultados experimentales y los resultados teóricos, por lo que el uso de la RNA puede constituir una alternativa muy interesante para el diseño y el estudio de los procesos de conformado en caliente.

Peer Reviewed

Country
Spain
Related Organizations
Keywords

Neural networks (Computer science), :Enginyeria dels materials::Metal·lúrgia [Àrees temàtiques de la UPC], Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia, Steel alloys -- Thermomechanical treatment, Acer -- Aliatges, Xarxes neuronals (Informàtica), Acer -- Propietats mecàniques, Steel alloys--Thermomechanical treatment, Acer -- Propietats tèrmiques, Acer--Aliatges

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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