Method of Sections - Internal Forces & Equilibrium | Strength of Materials Explained - Lecture 03

In this lecture, we dive deep into the Method of Sections, a powerful tool for analyzing internal forces in a body under static equilibrium. We'll explore the d’Alembert’s principle, cutting a body into parts, and determining internal forces like normal force, shear force, bending moments, and torsion. Through detailed explanations and equations of equilibrium, this lesson simplifies the complexity of internal force analysis for prismatic bars and load transmission modes. Perfect for engineering students and professionals seeking clarity on internal force factors and equilibrium principles.
Topics Covered:
Static equilibrium and d’Alembert’s principle
Cutting a body into parts for analysis
Internal force factors (Normal, Shear, Bending, Torsion)
Equations of equilibrium for parts I and II
Prismatic bars and load transmission