Question

Which theory of failure represents the given statement? 'The failure will occur in a material when the maximum principal strain reaches the strain due to yield stress in simple tension or when the minimum principal strain reaches the strain due to yield stress in simple compression.'

• A. Maximum principal strain
• B. Maximum strain energy
• C. Maximum principal stress
• D. Maximum shear stress

Answer 1

Answer:

B. Maximum strain energy

The given statement is an example of the Maximum Principle Strain theory of failure. According to this theory, failure occurs in a material when the maximum principal strain reaches the strain due to yield stress in simple tension or when the minimum principal strain reaches the strain due to yield stress in simple compression. This theory ensures that the maximum principle strain should always be less than the yield strain under uniaxial loading to avoid failure.