What are "bending moments" in stability theory?

Bending moments in stability theory refer to the internal forces within a vessel's structure that are generated as a response to external loads. When a ship is subjected to various forces, such as waves, wind, or cargo loads, these forces create moments that can cause bending of the ship's hull.

Understanding bending moments is crucial for assessing the integrity and stability of a vessel. They help engineers and naval architects to determine how the hull will react to different loading conditions, ensuring that the vessel can safely navigate through various environmental scenarios without structural failure. Hence, recognizing how these internal forces interact with the ship's design is essential for ensuring seaworthiness and long-term durability of the vessel.