TY - JOUR ID - TI - Insertion of Rotational Effects to the Calculation of J-Integrals Using Finite and Boundary Element Methods أدخال التأثیرات الدورانیة على حسابات تكامل - J باستخدام نظریة العناصر المححدة ونظریة العناصر الحدودیة AU - Ameen Ahmed Nassar PY - 2013 VL - 31 IS - 16 Part (A) Engineering SP - 3186 EP - 3193 JO - Engineering and Technology Journal مجلة الهندسة والتكنولوجيا SN - 16816900 24120758 AB - The calculation of J-integrals for cases with rotational effects using the finite orboundary elements needs special treatment. In this work, an attempt is made toderive the J-integral expressions for cases with rotational loading conditions. Newuseful ideas for reducing domain integrals to boundary integrals and improving theaccuracy of J-integrals are developed. The new ideas are implemented in finite andboundary element programs which were developed and validated in this work bytaking a case study of central-cracked rotating disc with known analytical solution.The results of the developed programs show good agreements with the analyticalsolution.

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