Optimization-based procedure for the determination of the constitutive model coefficients used in machining simulations
Communication avec acte
Auteur
CHENG, Wenyu 
MARTINS DO OUTEIRO, Jose CarlosCOSTES, Jean-PhilippeM’SAOUBI, RachidKARAOUNI, HabibDIETRICH, StefanMARCON, BertrandROSA, PedroRésumé
This paper deals with the determination of the constitutive model coefficients used in machining simulations. An optimization-based procedure is developed and applied to constitutive model coefficients determination of Ti6Al4V titanium alloy. The procedure is implemented in LS-Dyna/LS-Opt software, coupled with Abaqus/Explicit to calculate the force-displacement curve at each iteration, which is required for the optimization-based procedure. The robustness of the procedure to determine the constitutive model coefficients is evaluated by comparing the predicted and measured plastic strain distributions in the samples.
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Communication avec acte;MARTINS DO OUTEIRO, Jose Carlos; ; ; ; ; ; (Elsevier, 2018)
Ti6Al4V titanium alloy is widely used in aero-engines due to its superior performance. However, as a difficult-to-cut alloy, it induces short cutting tool life and poor surface integrity. To improve these process outcomes, ...
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Article dans une revue avec comité de lecture;MARTINS DO OUTEIRO, Jose Carlos; ; ; ; (Elsevier, 2019)
The predictability of manufacturing process simulation is highly dependent on the accuracy of the constitutive model to describe the mechanical behavior of the work material. The model should consider the most relevant ...
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Article dans une revue avec comité de lecture; ;MARTINS DO OUTEIRO, Jose Carlos; ; ; ; ; ; (Elsevier, 2017)
This paper reviews recent advances in constitutive and friction data and models for simulation of metal machining. Phenomenological and physically-based constitutive models commonly used in machining simulations are presented ...
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Communication avec acte; ; ; ;MARTINS DO OUTEIRO, Jose Carlos (2008)
Machinability enhancement of hot work tool steels can be achieved intrinsically through tailoring of alloying elements and steel processing route but also externally through the use of adequate tooling. The aim of the ...
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Article dans une revue avec comité de lecture; ; ;MARTINS DO OUTEIRO, Jose Carlos (Taylor & Francis, 2015)
Efforts on numerical modeling and simulation of metal cutting operations continue to increase due to the growing need for predicting the machining performance. A significant number of numer- ical methods, especially the ...