Sensitivity Analysis of Material Constitutive Model Parameters in Numerical Simulation of the Orthogonal Turning Process

K.S. Vijay Sekar; Kumar M. Pradeep

doi:10.4028/www.scientific.net/AMR.1119.591

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1119Sensitivity Analysis of Material Constitutive...

Sensitivity Analysis of Material Constitutive Model Parameters in Numerical Simulation of the Orthogonal Turning Process

Abstract:

Numerical simulations in machining processes are dependent on the flow stress input data. The flow stress is computed from empirical models which depend on number of material parameters, the values of which are derived from various mathematical optimization techniques. The derived flow stress parameters vary based on the nature of techniques used and the flow stress testing procedure utilized. This results in variations in the numerical simulation results when working with different models. In this work, the Johnson Cook flow stress model is tested for its sensitivity towards the finite element (FE) results. Orthogonal turning is conducted with AA 6082 (T6) aluminium alloy and the process is simulated in Deform 2D. The flow stress computed from the Johnson Cook model is input to the FE code and the cutting force and chip thickness recorded. The FE results are input to the Minitab statistical code and an optimization process conducted based on the orthogonal arrays concept. The comparative study reveals the sensitivity of the five parameters of the material model towards the cutting force and chip thickness.

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Periodical:

Advanced Materials Research (Volume 1119)

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591-596

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https://doi.org/10.4028/www.scientific.net/AMR.1119.591

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Online since:

July 2015

Authors:

K.S. Vijay Sekar*, Kumar M. Pradeep

Keywords:

Finite Element Simulation, Flow Stress, Optimization, Orthogonal Machining, Sensitivity

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References

[1] M. Shatla, K. Christian, and T. Altan: Int. J. Mach. Tools. Manuf. Vol. 41(2001), p.1659.

Google Scholar

[2] P.F. Bariani, T. Dal Negro, and S. Bruschi: CIRP Annals-Manuf. Technol. Vol. 53 (2004), p.573.

Google Scholar

[3] D. Umbrello, R.M. Saoubi, and J.C. Outeiro: Int. J. Mach. Tools. Manuf. Vol. 47(2007), p.462.

Google Scholar

[4] D. Umbrello: J. Mater. Process. Technol. Vol. 196 (2008), p.79.

Google Scholar

[5] N. Fang: J. Eng. Mater. – T. ASME. Vol. 127 (2005), p.192.

Google Scholar

[6] T. Ozel, and E. Zeren :J. of Manuf. Science and Eng, Vol. 128 (2006) p.119.

Google Scholar

[7] T. Ozel and Y. Karpat: Mater. Manuf. Processes Vol. 22 (2007), p.659.

Google Scholar

[8] A.S. Khan, Y.S. Suh, and R. Kazmi: Int. J. Plasticity, Vol. 20 (2004), p.2233.

Google Scholar

[9] N. Tounsi, J. Vincenti, A. Otho, M.A. Elbestawi: Int. J. Mach. Tools. Manuf. Vol. 42 (2002) p.1373.

Google Scholar

[10] J. Pujana, P.J. Arrazola, R.M. Saoubi, and H. Chandrasekaran: Int. J. Mach. Tools Manuf. Vol. 47(2007), p.2153.

Google Scholar

[11] G.R. Johnson, and W.H. Cook: Proceedings of the 7th International Symposium on Ballistics The Hague The Netherlands (1983), p.541.

Google Scholar

[12] S.P.F.C. Jaspers, Metal cutting mechanics and material behaviour, Ph.D. Thesis, Eindhoven University of Technology, Eindhoven, The Netherlands, (1999).

Google Scholar