- #1
MCooltA
- 8
- 0
I need to draw a stress and strain graph. New to physics, so would like to know if i am on the right line and require a bit of help for the last few questions
These are the values I have:
Diameter - 10.02mm
Original Length - 50mm
Extension -10mm
Diameter After Test - 6.76mm
Max Load - 42.7 kN
Break Point - 31 kN
Found the cross sectional area to be - 78.85
So for the maximum tensile stress, i done
42700/78.85 = 541.5 MPa ... Is this correct?
How do i go about calculating the strain for this value so i can plot it on my graph. I know the formulas, but wasnt given a extension at the Max Load?
Thanks
These are the values I have:
Diameter - 10.02mm
Original Length - 50mm
Extension -10mm
Diameter After Test - 6.76mm
Max Load - 42.7 kN
Break Point - 31 kN
Found the cross sectional area to be - 78.85
So for the maximum tensile stress, i done
42700/78.85 = 541.5 MPa ... Is this correct?
How do i go about calculating the strain for this value so i can plot it on my graph. I know the formulas, but wasnt given a extension at the Max Load?
Thanks