Modified Johnson-Cook Plasticity Model with Damage Evolution: Application to Turning Simulation of 2XXX Aluminium Alloy. (22nd February 2017)

• Record Type: Journal Article
• Authors: Ijaz, H.; Zain-ul-abdein, M.; Saleem, W.; Asad, M.; Mabrouki, T.
• Is Part Of: Journal of mechanics. Volume 33:Number 6(2017)
• Page Start: 777
• Page End: 788
• Publication Date: 2017-02-22
• Subjects: Finite element analysis -- Modified Johnson-Cook model -- Grain size -- Turning process; Mechanics, Analytic -- Periodicals; Mechanics -- Periodicals; 620.1005
• DOI: 10.1017/jmech.2017.11
• Languages: English
• ISSNs: 1727-7191

Abstract

Abstract : Mechanical properties of the metals and their alloys are influenced by the material grain size at microscale. In the present study, the Johnson-Cook (JC) material model is modified to incorporate the effect of material's grain size along with the plasticity coupled damage model. 2D finite element (FE) simulations of turning process of an aerospace grade aluminium alloy 2024 (AA2024) were performed with different grain sizes using a commercial FE software, ABAQUS/Explicit. FE simulation results were compared with the published experimental data on turning process of AA2024. The proposed modified JC material model successfully simulated the increase in cutting force as a function of grain size refinement.