- #1
smr101
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Unsure which dimensions to use to work out the force and strain energy here.
I know that Force = yield strength * area
Yield strength = 310 MPa
Area, I'm unsure which radius to use. I assume 12 mm.
For strain energy = (Force^2 * Length)/(2 * Area * Youngs Modulus)
Unsure which length and area to use here.
Best attempt I've made so far gives 42.41 J
Working:
F = 310 x 10^6 * pi*0.012^2
= 140,240N
U = 140240^2 * 0.4 / 2 * pi*0.012^2 * 205 x 10^9
Thanks, question is below:
Answer is 42.54 J.
I know that Force = yield strength * area
Yield strength = 310 MPa
Area, I'm unsure which radius to use. I assume 12 mm.
For strain energy = (Force^2 * Length)/(2 * Area * Youngs Modulus)
Unsure which length and area to use here.
Best attempt I've made so far gives 42.41 J
Working:
F = 310 x 10^6 * pi*0.012^2
= 140,240N
U = 140240^2 * 0.4 / 2 * pi*0.012^2 * 205 x 10^9
Thanks, question is below:
Answer is 42.54 J.
Last edited: