3D Linear Elasticity & Beams

This lecture covers the fundamentals of 3D linear elasticity, including stress, strain, and equilibrium equations. It also delves into the behavior of beams under internal loads, bending, torsion, and buckling. The slides progress from the introduction of slender structures to the application of stress and strain concepts in beams, emphasizing the importance of stress concentration and the finite element method. The instructor discusses the stress field in beams, the impact of shear forces, and the torsion of rods and shafts. The lecture concludes with a detailed explanation of the torsional behavior of shafts and the assumptions made in analyzing their twisting.