Simulation Study for the Ceramic Powder Compaction Proces
AbstractThe accurate simulation of powder compaction involves many different areas in computational mechanics, where appropriate elastoplastic constitutive model, finite deformation framework, enforcement of contact, friction conditions and robust numerical methods are some of the requirements demanded in this simulation. The modified Drucker-Prager Cap (DPC) elasto-plastic constitutive model is used for the calculations that performed using the finite element code ABAQUS 6.4, to simulate densification of alumina powder using cold die pressing. A comparison of the experimental and theoretical density distribution shows that there is a good qualitative agreement in the sense that both produce the important maximum and minimum density regions accurately, despite the overall density distribution of present work is slightly underestimated experimental data.
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