Hi Aniket,
Thanks for your reply.
I agree your point. We have to input the true Plastic strain data for each true stress values. And first row would be 0(Plastic Strain), Yield stress.
But for some metals, finding the yield point is not easy. So generally they consider the yield point as the stress level which cause 0.2% plastic strain. It is also called as proof stress.(Refer Image below)
So considering this situation, we have to enter the True Plastic strain and True stress values as mentioned below.
But ansys will not allow us to enter the stating point other than 0 for the yield point(154MPa). (the yellow field is highlighted by the ansys which indicates the input error).
So if i want to input the exact stress strain curve by considering the 0.2% Proof stress as a yield stress, what is the correct way to input the Plastic strain-Stress data?
Thanks for your reply.
I agree your point. We have to input the true Plastic strain data for each true stress values. And first row would be 0(Plastic Strain), Yield stress.
But for some metals, finding the yield point is not easy. So generally they consider the yield point as the stress level which cause 0.2% plastic strain. It is also called as proof stress.(Refer Image below)
So considering this situation, we have to enter the True Plastic strain and True stress values as mentioned below.But ansys will not allow us to enter the stating point other than 0 for the yield point(154MPa). (the yellow field is highlighted by the ansys which indicates the input error).So if i want to input the exact stress strain curve by considering the 0.2% Proof stress as a yield stress, what is the correct way to input the Plastic strain-Stress data?
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