Linear Elasticity in 3D: Beam Bending

This lecture covers the topic of linear elasticity in 3D, focusing on beam bending. The slides discuss stress and strain tensors, stress and strain in 2D and 3D bodies, elasticity, and the concept of beam bending. The instructor explains the stress tensor, symmetry of stress, and the determination of internal forces per unit area. The lecture also delves into the relationship between stress and strain, the traction vector, and the stress-strain behavior of materials. Additionally, it explores the concept of Poisson's ratio and the implications of linear elasticity in structural mechanics.