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Overpressure (or blast overpressure) is the pressure caused by a shock wave over and above normal atmospheric pressure. The shock wave may be caused by sonic boom or by explosion , and the resulting overpressure receives particular attention when measuring the effects of nuclear weapons or thermobaric bombs .
Retrieved from "https://en.wikipedia.org/w/index.php?title=Blast_overpressure&oldid=890567285"This page was last edited on 2 April 2019, at 03:35 (UTC). (UTC).
Blast waves cause damage by a combination of the significant compression of the air in front of the wave (forming a shock front) and the subsequent wind that follows. [15] A blast wave travels faster than the speed of sound, and the passage of the shock wave usually lasts only a few milliseconds. Like other types of explosions, a blast wave can ...
The Central Committee of the Communist Party of Vietnam (Vietnamese: Ban Chấp hành Trung ương Đảng Cộng sản Việt Nam), commonly the Party Central Committee (PCC; Vietnamese: Ban Chấp hành Trung ương Đảng - BCHTW Đảng or BCHTƯ Đảng), is the highest organ between two national congresses and the organ of authority of the Communist Party of Vietnam, the sole ruling ...
A blast injury is a complex type of physical trauma resulting from direct or indirect exposure to an explosion. [1] Blast injuries occur with the detonation of high-order explosives as well as the deflagration of low order explosives. These injuries are compounded when the explosion occurs in a confined space.
Overpressure caused by the bomb explosion during the Oklahoma City bombing [72] 40 MPa 5,800 psi Water pressure at the depth of the wreck of the Titanic: 69 MPa 10,000 psi Water pressure withstood by the DSV Shinkai 6500 in visiting ocean depths of > 6500 meters [73] 70 to 280 MPa 10,000 to 40,000 psi Maximal chamber pressure during a pistol ...
Overpressure is a pressure difference, relative to a normal pressure, in various circumstances: In engineering, the pressure difference over the wall thickness of a pressure vessel; In geology, geologic overpressure, the primary cause of oil gushers; In autoclave terminology, process pressure above standard given on a pressure/temperature table
Blast dampers usually employ some type of blade held open with tension from a spring. The damper blades close automatically when pressure overcomes the resistance offered by the spring. Various models differ in the amount of blast protection (e.g. 1 bar/14.5 psi or lower amounts of protection) and whether they stay closed after the blast or ...