A turbocharger is an engine component that utilizes the exhaust gases of an internal combustion engine to provide forced induction. As part of the testing requirements for turbochargers, the turbine wheel burst test is conducted to assess whether the housing can safely contain a burst turbine wheel. This test ensures the safety of both passengers and engine components. In order to perform the wheel burst analysis, the material model used for the housing needs to accurately represent the behavior of the material, considering factors such as strain, strain rate, and temperature that affect the material’s flow stress. In this study, the Johnson-Cook ( JC) material model was employed for Austenitic stainless steel. The plasticity and damage parameters required for the JC material model were determined. For the identification of the plasticity coefficients, the optimization tool LS-OPT was utilized. On the other hand, an analytical approach was adopted to determine the damage coefficients. These coefficients are crucial in capturing the damage behavior of the material during the wheel burst analysis.

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