How Continuous Welded Rail Handles Thermal Expansion
Practical Engineering · Explainer · YouTube title: Why Railroads Don't Need Expansion Joints
Why it's here
Linked in rail and heat-related threads as the clear explanation of why railroads need no expansion joints and how heat problems are handled.
What it covers
Practical Engineering explains how continuous welded rail copes with thermal expansion by restraining it, using the relationship between temperature, stress and strain. The video is part of a series on railways.