Modelling and numerical simulation of the anode compaction process at laboratory scale
This work deals with the modelling and numerical simulation of the anode compaction process at laboratory scale.For this purpose, a finite-strain viscoplastic constitutive law was developed and implemented in Abaqus software.It was based on the thermodynamic framework and the multiplicative decomposition of the deformation gradient into its elastic and irreversible deformation parts.The permanent deformation was characterized using a dissipation potential.The state of stress was defined through a Helmholtz free energy.To characterize the mechanical behaviour of the anode paste, compaction tests using a thin mould wall were carried out at 150℃.An inverse identification procedure using finite element method showed that the proposed constitutive model reproduces experimental trends.Compaction tests using complex geometries such as slots and stub holes were carried out in order to evaluate model predictive capabilities.Numerical simulations show that the model predicts quite successfully the density distribution of the anode paste obtained through the CT scan.
anode forming process finite-strain viscoplastic constitutive law finite elements method slot stub hole
Hicham Chaouki Stéphane Thibodeau Houshang Alamdari Donald Ziegler Mario Fafard
NSERC/Alcoa Industrial Research Chair MACE3 and Aluminum Research Centre-REGAL Laval University, Que NSERC/Alcoa Industrial Research Chair MACE3 and Aluminum Research Centre-REGAL Laval University, Que Alcoa Primary Metals, Alcoa Technical Center, 100 Technical Drive, Alcoa Center, PA, 15069-0001,USA
国际会议
32th International Conference & Exhibition ICSOBA-2014(第32届国际铝土矿、氧化铝和铝工业技术学术年会)
郑州
英文
449-460
2014-10-12（万方平台首次上网日期，不代表论文的发表时间）