Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Clarification in stress strain curve input using Multilinear Isotropic Hardening › Reply To: Clarification in stress strain curve input using Multilinear Isotropic Hardening
October 27, 2021 at 2:06 pm
karthikeyan.m
Subscriber
Yes, I tried this also. But subtracting 0.002 from each row will not match the material stress strain curve.
In the above image, ash colour line is the exact material curve. If i reduce 0.002 from all the strain points, the behaviour does not matches with the exact material curve. (Compare green and ash colour line). Here strain values and stress values are not matching with the exact material curve.
And if i reduce 0.002 from only first point, the behaviour is not matching at the yield point.(compare blue and ash colour line)
So how to input the plastic strain and Stress data without compromising the exact material stress strain curve?
In the above image, ash colour line is the exact material curve. If i reduce 0.002 from all the strain points, the behaviour does not matches with the exact material curve. (Compare green and ash colour line). Here strain values and stress values are not matching with the exact material curve.
And if i reduce 0.002 from only first point, the behaviour is not matching at the yield point.(compare blue and ash colour line)
So how to input the plastic strain and Stress data without compromising the exact material stress strain curve?