Structures and Mechanisms: Introduction to Structural Mechanics

This lecture introduces the concept of structures, focusing on rigid and non-rigid structures, mechanisms, and internal loads. It covers topics such as equilibrium, different types of joints/supports, and the analysis of trusses and frames. The instructor explains the definition of structures as complex ensembles of simple engineering elements providing stiffness and strength. The lecture also delves into the ideal trusses assumptions, the strategy to solve problems related to rigid structures, and the significance of free-body diagrams. Additionally, it discusses the application of forces on trusses, the concept of tension and compression, and the importance of sign conventions in analyzing structures.