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Lecture
Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
This lecture covers stress intensity factors in fracture mechanics, focusing on the concept of K as a fracture criterion. It explains the stress field around a crack tip, different crack opening modes, and situations where other modes may dominate. The instructor demonstrates the through-thickness crack in an infinite sheet and biaxial remote stress. The lecture also discusses the importance of mode I as a worst-case scenario for testing fracture properties. Various expressions for stress intensity factors and their implications are explored, including the relationship between K and G. The lecture concludes with a discussion on the thickness dependency of stress near the crack tip and the implications for fracture behavior.