Question

Distinguish between true strain and engeenering strain.​

Answer 1

Answer:

Engineering strain is the amount that a material deforms per unit length in a tensile test. Also known as nominal strain. True strain equals the natural log of the quotient of current length over the original length.

Answer 2

Explanation:

• Engineering strain is the amount that a material deforms per unit length in a tensile test. Also known as nominal strain. True strain equals the natural log of the quotient of current length over the original length.

• In engineering applications, structural members experience small deformations and the reduction in cross-sectional area is very small and it can be neglected, i.e., cross section area is asumed constant during deformation. For this case, the stress is called engineering stress or nominal stress.