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How to calculate yield strength
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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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