Question

Shear modulus formula in terms of percent elongation

Answer 1

Explanation:

Careful. True Stress-True Strain are not the same thing as Engineering Stress and Strain. You measure percent elongation as e = (Lf-Lo)/L0 but this is not the true strain at fracture. epsilon f = ln( elongation +1). See Chapter 8 in Mechanical Metallurgy by George Dieter, 3rd Ed.