Deformation of Planar Systems

This lecture focuses on analyzing equilibrium systems made of bars subjected to axial compression or tension, exploring the intersection between static equilibrium and mechanical behavior of materials. The instructor explains how to estimate the deformation of bar systems by considering factors such as initial length, applied force, material properties, and section geometry. Different types of supports, including roller and pinned supports, are discussed, highlighting their roles in allowing structural movement. The lecture also covers the deformation analysis of complex structures, such as trusses, and draws parallels between analyzing trusses and beams under similar loading conditions. The importance of ensuring compatibility between internal forces and deformations in structures is emphasized, with the instructor providing practical insights for preliminary structural design.