- #1

Nick Goodson

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- TL;DR Summary
- Differing answers for modulus of resilience

Hi,

I have a problem, using the 2 different equations for calculating the Modulus of Resilience, I get 2 different answers. It seems simple, but I’m a little perplexed.

For the following values:

I have a problem, using the 2 different equations for calculating the Modulus of Resilience, I get 2 different answers. It seems simple, but I’m a little perplexed.

For the following values:

- Yield Stress = 1880 MPa
- Yield Strain = 0.0068
- E = 401 GPa

[U(r) = (Yield Stress x Yield Strain) / 2] - answer = 6.39 MJ/m^3

[U(r) = Yield Stress^2 / (2 x E)] - answer = 4.4 MJ/m^3