Question

Prove that the true strain at necking equals the strain hardening exponent

Answer 1

hey mate here is your answer

Necking begins when the true strain is equal to the strain hardening exponent. That is n = ε Higher the value of n, higher thestrain the material can withstand before necking. During instability, the material becomes stronger due to strain hardening.

shivam

Answer 2

Answer:

Necking or localized deformation begins at maximum load, where the increase in stress due to decrease in the cross-sectional area of the specimen becomes greater than the increase in the load-carrying ability of the metal due to strain hardening.

This conditions of instability leading to localized deformation is defined by the condition δP = 0.

Step-by-step explanation: