Definition
The ability of a structural material or component to resist forces that would cause it to flex or bow under load without permanent deformation or failure. Bending produces tension on one side of the material and compression on the other, and bending strength measures how much of this combined stress the part can withstand before yielding or breaking.
Plain English
How much force a part can take while being bent before it stays bent or snaps.
Context Anchor
Seen in aircraft structures, materials, maintenance, and repair discussions, especially when a part must carry a load without deforming.
Why Pilots Care
Determines whether structural parts like wings and fuselage sections will hold up under flight loads without cracking.
Analogy
Think of bending a plastic ruler. It flexes a little and springs back — that's within its bending strength. Push too far and it stays curved or snaps. Aircraft parts behave the same way, just with much higher limits.
Intuition Check
Bending strength does not mean a part is easy to bend. It means the part can resist bending damage when a force is applied.
Example Sentence 1
The wing spar must have enough bending strength to handle the loads imposed during turbulence and high-G maneuvers.
Example Sentence 2
Technicians check the bending strength of replacement skin panels before installation.