Introduction to Structural Mechanics

This lecture covers the fundamental concepts of structural mechanics, including statically determinate and indeterminate systems, linear superposition, and the relationship between normal stress, axial strain, and the constitutive law for solids. The instructor explains the principles of deformable solid bodies, axial loading, and axial stiffness, using examples like a conical structure to illustrate the concepts. The lecture also delves into the displacement-strain relation and the compatibility of deformations in structural elements.