i TWO-DIMENSIONAL FATIGUE CRACK GROWTH ANALYSIS USING EXTENDED FINITE ELEMENT METHOD (XFEM) By: MUHAMMAD SHAFEEQ BIN ABDUL HANNAN (Matric no: 126248) Supervisor: Ir. Dr. Feizal Yusof May 2018 This dissertation is submitted to Universiti Sains Malaysia As partial fulfillment of the requirement to graduate with honors degrees in BACHELOR OF ENGINEERING (MECHANICAL ENGINEERING) School of Mechanical Engineering Engineering Campus Universiti Sains Malaysia