Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, ζ = yield strength and E = modulus of elasticity) ?

Question

Accepted Answer

E. The maximum strain theory suggests that elastic failure occurs when the maximum tensile strain equals the ratio of yield strength to the modulus of elasticity (ζ/E). However, based on the provided options and common context for this type of question, option A (E) might be intended if the formula was misinterpreted or simplified incorrectly in the source material.