Question

what do you understand by tensile strength ​

Answer 1

Tensile strength is maximum load that a material can support without fracture when being stretched, divided by the original cross-sectional area of the material.

For example, the tensile strength of nylon is greater than that of iron.

Imagine a strip of paper being pulled at its two ends with your fingers. You are applying a tensile force on the strip. When this tensile force crosses a certain threshold, the paper tears. The tensile stress at which this takes place is the tensile strength of that material, in this case paper.