This is an introductory course on fracture mechanics and applications of fracture mechanics to real-life problems such as fatigue crack growth. Primary consideration is for fracture concepts applied to homogenous, isotropic material systems, and one can expand the concepts to non-homogenous, anisotropic material systems. Outcomes: Understanding the need for fracture based design of critical components, the difference between continuum systems and cracked systems; characterization of fracture mechanics parameters and use of the fracture mechanics concepts to practical design of safety-critical structures such as pressure vessels, airplanes, automotive systems.