Insertion of rotational effects to the calculation of J-integrals using finite and boundary element methods

Abstract EN

The calculation of J-integrals for cases with rotational effects using the finite or boundary elements needs special treatment.

In this work, an attempt is made to derive the J-integral expressions for cases with rotational loading conditions.

New useful ideas for reducing domain integrals to boundary integrals and improving the accuracy of J-integrals are developed.

The new ideas are implemented in finite and boundary element programs which were developed and validated in this work by taking a case study of central-cracked rotating disc with known analytical solution.

The results of the developed programs show good agreements with the analytical solution.