Identification of material parameters by combining a detailed temperature model with modified primary shear zone analysis Online publication date: Wed, 10-Sep-2014
by Wanqiang Xing; Liangshan Xiong; Qi Tang
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 16, No. 2, 2014
Abstract: This study introduces a detailed temperature model based on the moving heat source theory to identify Johnson-Cook material model parameters. The average temperature, effective stress, strain and strain rate on the main shear plane have been theoretically modelled by combining the temperature model with unequal division shear zone analysis. And then these physical quantities are evaluated by orthogonal cutting experiments with different cutting conditions. Applying genetic algorithm with searching ranges that strictly preserve the physical significance of material parameters to the inverse identification yields an optimal set of Johnson-Cook parameters. This methodology has been applied for two materials AISI 1045 steel and Al 6061-T6. The FEM simulation results by the new obtained parameters turn out to be in better agreement with experimental data than those by previous obtained parameters.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Machining and Machinability of Materials (IJMMM):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook