Hi friends, The section modulus is used in many structural calculations. We’ll show a few of these later in the article. It also depends on the shape and dimensions of a cross-section as the moment of inertia. In fact, the section modulus and moment of inertia of a cross-section are very similar, and often times we can use one or the other. In this Structural Basics episode, we’ll show you the difference between section modulus and moment of inertia. Welcome to post #15 of the engineering...