Optimization-based procedure for the determination of the constitutive model coefficients used in machining simulations
Type
Communications avec actesAbstract
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.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
CHENG, Wenyu; OUTEIRO, José; COSTES, Jean-Philippe; M'SAOUBI, Rachid; KARAOUNI, Habib; ASTAKHOV, Viktor (Elsevier BV, 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 ...
-
CHENG, Wenyu; OUTEIRO, José; COSTES, Jean-Philippe; M’SAOUBI, Rachid; KARAOUNI, Habib; DENGUIR, Lamice; ASTAKHOV, Viktor; AUZENAT, François (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, ...
-
MELKOTE, Shreyes; GRZESIK, Wit; OUTEIRO, José; RECH, Joël; SCHULZE, Volker; ATTIA, Helmi; ARRAZOLA, Pedro J.; M'SAOUBI, Rachid; SALDANA, Christopher (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 ...
-
M'SAOUBI, Rachid; CHANDRASEKARAN, H.; COULON, Bertrand; MARQUES, M.J.; OUTEIRO, José (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 ...
-
OUTEIRO, José; UMBRELLO, Domenico; M'SAOUBI, Rachid; JAWAHIR, I.S. (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 ...