PSI - Issue 60

S.K. Pandey et al. / Procedia Structural Integrity 60 (2024) 665–677 S. K. Pandey/ Structural Integrity Procedia 00 (2023) 000 – 000

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 The parameters of Johnson-Cook plasticity model, for SS316LN material, A, B and n have been found from the experimental data (evaluated from quasi-static test data at room temperature) as 256 MPa, 1100 MPa and 0.75 respectively.  Split-Hopkinson Bar Pressure Test has been performed on a cylindrical specimen at room temperature with the striker velocity of 5.5 m/s for the material of SS316LN.  F inite element analysis has been carried out with different values of strain hardening parameter ‘C’ and by comparing the results of parametric analysis with experimnental data, a value of 0.03 for the parameter C has been obtained. References ABAQUS, ABAQUS Analysis User’s Guide 920160. Chellapandi, P. Chetal, S.C., Bhoje, S.B., 2001. An efficient solution algorithm for fast transient fluid structural interaction analysis with two phase fluid element in an ALE code, Transactions, SMiRT 16, Washinton DC. Johnson, G.R., Cook, W.H., 1983. A Constitutive Model and Data for Metals Subjected to Large Strains, High Strain Rates and High T emperatures. In: Proceedings of the Seventh International Symposium on Ballistics, 541 – 547. Pandey, S.K., 2022. Experimental and numerical investigation of ductile crack initiation and growth in austenitic stainless steel grade 316LN for nuclear application, Thesis, M.Sc (Engg.) December, 2022. Samal, M.K., Sharma, S., 2021. A New Procedure to Evaluate Parameters of Johnson – Cook Elastic – Plastic Material Model from Varying Strain Rate Split Hopkinson Pressure Bar Tests, Journal of Materials Engineering and Performance, 30(11). Sharma, S., V.M. Chavan, V.M., Agrawal, R.G., Patel, R.J., Kapoor, R., Chakravartty, J.K., 2011. Split-Hopkinson Pressure Bar: an experimental technique for high strain ratetests, BARC/2011/E/010.