If the crack length is doubled than the original value, the potential energy of the J integral will change by a factor of ____
If the crack length is doubled than the original value, the potential energy of the J integral will change by a factor of ____ Correct Answer 4
The potential energy of J integral is written as: J=dUo/da=K2/E’; The constant K2 is defined as πc2σ2; c is crack length, Hence if the crack length is increased by a factor of 2, the constant K2 will increase by a factor of 4. So the potential energy will increase 4 factor.