bhagwantP
Ansys Employee

Hello javat33489,

As Ram suggested you need to have experimental data to determine this.

Additional links for your study purpose: Will not give you direct parameters which you are expecting but you can use this for your better understanding,

 

Determination of Johnson–Cook Plasticity Model Parameters for Inconel718 | SpringerLink

Determination of Johnson–Cook parameters from machining simulations - ScienceDirect

">Tutorial: How to obtain the Johnson-Cook Parameters A, B & n from a complex Stress-Strain Curve ? - YouTube

ADA392414.pdf (dtic.mil),  

">How to find Johnson Cook Parameters by using Stress-Strain Graph explained through Excel Sheets? - YouTube

Thanks