overpressure
Beyond ambient pressure
Overpressure is pressure exceeding normal atmospheric levels, especially the sudden pressure wave from an explosion.
In military and engineering contexts, it describes the destructive force that radiates outward from a blast: The overpressure from the bomb shattered windows a mile away.
The term also applies in diving and aerospace to dangerous pressure differentials.
Propagating pressure disturbance
- detonationExplosive ignition event
- explosionViolent burst of energy
- blastwavePressure wave from explosion
- impulseSudden urge to act
concussion · supersonic · wavefront · propagation · fragmentation · debris · fireball · destruction
Forcing into smaller space
- pressurizationRaising internal atmospheric force
- confinementState of being restricted
- burstBreak apart suddenly
- ruptureViolent tearing apart
containment · vessel · safety-valve · blowout · tank · pipeline · gasket · membrane
Reduction of pressure
- hyperbaricAbove atmospheric pressure
- sinusAir-filled cranial cavity
- pneumothoraxAir in pleural space
- diving-bellSealed underwater work chamber
bends · aerotitis · equalization · ascent
Pressure, mental or vocal
- strainExcessive stretching force
- loadCarried weight or burden
- fatigueWeariness from prolonged exertion
- fractureSplit in hard material
deformation · yielding · elasticity · failure · buckling · cracking · reinforcement · resilience
shockwave
Propagating pressure disturbance
- detonationExplosive ignition event
- explosionViolent burst of energy
- blastwavePressure wave from explosion
impulse · concussion · supersonic · wavefront · propagation · fragmentation · debris · fireball · destruction · rupture
compression
Forcing into smaller space
- pressurizationRaising internal atmospheric force
- confinementState of being restricted
- burstBreak apart suddenly
rupture · containment · vessel · safety-valve · blowout · tank · pipeline · gasket · membrane · cylinder
decompression
Reduction of pressure
- hyperbaricAbove atmospheric pressure
- sinusAir-filled cranial cavity
- pneumothoraxAir in pleural space
diving-bell · bends · aerotitis · equalization · ascent
stress
Pressure, mental or vocal
- strainExcessive stretching force
- loadCarried weight or burden
- fatigueWeariness from prolonged exertion
fracture · deformation · yielding · elasticity · failure · buckling · cracking · reinforcement · resilience · brittleness
decibels
Acoustic intensity units
- pressureabsolute, psi, pascal, kilopascal, hectopascal
- Industrial Hazardsexplosions, fires, chemical burns, toxic fumes, gas leaks
- petroleum geologypetroleum, crude oil, hydrocarbon, oil field, source rock
- shock wavesshock wave, shock waves, blast wave, sonic boom, Mach number
- Weaponryrifles, shotguns, grenades, missiles, bombs
- gunfireshoot, gunshot, artillery fire, fire, gunfire
overpressurenegative pressure
Pressure below ambient levels
vacuum · suction · partial vacuum · low pressure · rarefaction