2022-01-11

A cylindrical specimen of steel having an original diameter of 12.8 mm is tensile tested to fracture and found to have engineering fracture strength σf of 460 MPa. If its cross-sectional diameter at fracture is 10.7 mm, the true stress at fracture will be.

nick1337

Expert2022-02-07Added 777 answers

True stress at fracture,

True stress = engineering stress

Or,

Calculation:

Given:

Now

22+64

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