RAHMATOLLAH GHAJAR: Prof. K.N. T. University. Email: ghajar@kntu.ac.ir Education: PhD: Mechanical Engineering, Tohoku University, Sendai, Japan, 1994. MSc: Mechanical Engineering, University of Tehran, Iran, 1977. BSc: Mechanical Engineering, University of Tehran, Iran, 1976. Teaching Experience::Strength of Materials, Design of Machine Elements, Continuum Mechanics, Theory of Elasticity, Theory of Plasticity, Fracture Mechanics, Fatigue. Publication: Book: Introduction to Fracture Mechanics, Fracture Mechanics and Fatigue, Analysis of Mechanical Structures under Multiaxial Fatigue, Elasticity Theory & Application. Journal Papers: 60, Conference Papers: 70