Beam Bending II: Internal Forces, Curvature, and Stiffness

This lecture covers advanced topics in beam bending, focusing on internal forces, curvature, and stiffness. It delves into the normal and traction vectors, stress tensors, elasticity, and shear modulus. The instructor explains the kinematic approximation for beam bending, stress field calculation, and integration to obtain forces and moments. The lecture also discusses the assumptions for rectangular beams, axial strain, and the importance of beam thickness. Additionally, it explores the use of Atomic Force Microscopy (AFM) for high-resolution imaging and the principles behind it.