Material modeling from raw data

aim:

to Use the diagram of the true stress-strain curve of graphite iron casting and run the simulation.

procedure:

1. import the picture in the data digitizer.

2. then the x the x and y points are plotted.

3. the x and y values are taken to the excel to find the curve fit for the values

4. and then the values are created and new equation is found in the model.

5. now effective plastic strain, true stress and engg stress are found by using the formula.

6. after that effective plastic strain and true stress are been plotted.

7. now the dog bone model is imported and material card is created

8. in defien curve the effective plastic strain, true stress values are been plotted in the system.

9. the control implict is been used in this model for solving

10. boundary conditions and output values are created

10. now runt the model.

conclusion:

from this d3plot the pull force is acting along x direction and push force along y direction.

the stress strain graph 150 percentage strain the curve moves in linear after that the true stress is occurs in the system. upto 0.15 strain it is a elastic region .

this is the elemental stress graph in that it clearly shows upto 0.1 strain the values goes in linear therefore the true stress occurs in the system.

in the strain graph in 0.1 the linear curve ends in the region therefore the true stress occurs.

result :

thus the true stress-strain curve of graphite iron casting is used and simultion in done.