Definition
The outward force exerted by a pressurized fluid or gas on the walls of a container, vessel, hose, or structure that contains it. In aviation systems, bursting force determines the wall thickness, material strength, and safety margins required for components such as pneumatic lines, hydraulic accumulators, oxygen bottles, tires, and pressurized fuselages.
Plain English
The push that pressure inside a container makes against its walls, trying to tear it apart from the inside.
Context Anchor
Seen in aircraft maintenance and systems discussions involving fuel tanks, hydraulic lines, brake systems, pressure vessels, and other parts that must hold internal pressure.
Derivation
From 'burst' -- to break open suddenly from internal pressure. The term is literal: it is the force that would burst the container if its walls were not strong enough to hold it.
Why Pilots Care
Aircraft tires run at high pressures; knowing bursting force helps confirm that the tire's rated strength always exceeds the force present in normal and emergency conditions.
Analogy
Think of a balloon being inflated. The air inside pushes outward on the rubber in every direction. That outward push is the bursting force -- and when it exceeds what the rubber can hold, the balloon pops.
Intuition Check
Bursting force does not mean an explosion has already happened. It means the internal pressure is pushing outward strongly enough that the part must be able to resist breaking open.
Example Sentence 1
The oxygen bottle is built with thick walls because the bursting force at full charge is considerable.
Example Sentence 2
Overinflation raises the bursting force and can push a tire beyond its safe limits.