Question

For an isentropic material, the stress-strain relationship is known as _________

(a) Bragg’s law

(b) Hooke’s law

(c) Lenz law

(d) Sokolov-Ternov effect

I have been asked this question in an international level competition.

My question is from Elasticity, Relaxation Processes and Spring Dashpot Models topic in division Plastic Deformation and Creep in Crystalline Materials, Elastic, Anelastic and Viscoelastic Behaviour of Engineering Material & Metallurgy

Answer 1

Right choice is (b) Hooke’s law

To explain: The stress-strain curve is used to describe the elasticity of materials which is generally non-linear. For an isentropic material, the linearized stress-strain relationship is called Hooke’s law.