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How to calculate yield strength
This calculation is an example problem in structural engineering. This content is sponsored by PPI. For similar problems, see the list of review books by PPI
The stress-strain diagram for a steel rod is shown and can be described by the equation ε=0.20(1e-06)σ+0.20(1e-12)σ3 where s in kPa. Determine the yield strength assuming a 0.5% offset.
Solution
(a) For 0.5% =0.005mm/mm
5000=0.20σ+0.20(1e-6)σ3 solving for σ=2810.078kPa.
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