Скачать или смотреть Strong Axis Crushes Weak Axis—Here's Why

Understanding the plastic section modulus (Z) is critical for correctly calculating the plastic moment capacity of steel beams — especially when comparing the strong axis vs weak axis behavior. In this video, I break down how to calculate Z step by step and show how it directly controls the plastic moment in each axis.

This video covers:

What the plastic section modulus Z actually represents
How to calculate Z for both the strong axis and weak axis
How cross-section geometry controls strength in plastic bending

The goal of this video is to move beyond memorization and help you visualize how steel yields across a section and why the strong axis almost always provides a much higher plastic capacity.

This explanation is ideal for structural engineering students, FE / PE exam prep, and engineers reviewing steel flexural behavior under LRFD design.

#StructuralEngineering
#SteelDesign
#PlasticMoment
#SectionModulus
#CivilEngineering
This video examines steel design problems, specifically focusing on the calculation of the plastic section modulus (Mp) for various steel sections. We demonstrate determining Mp for both weak and strong axes, referencing AISC tables and formulas. Understanding these calculations is crucial for effective lrfd in steel design.