Fracture Mechanics: Energy Analysis

This lecture covers the energy analysis in fracture mechanics, focusing on the unstable crack growth under simple load. The instructor discusses the energy release rate, surface energy, and the concept of stored elastic energy. Various geometries and their energy implications are explored, such as the Double Cantilever Beam. The lecture emphasizes the importance of understanding the energy changes during crack growth and the critical load for stability. Strategies for measuring and controlling displacement and load are discussed, highlighting the significance of compliance in structural behavior.