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A catastrophic failure is a sudden and total
failure Failure is the state or condition of not meeting a desirable or intended objective, and may be viewed as the opposite of success. The criteria for failure depends on context, and may be relative to a particular observer or belief system. One ...
from which recovery is impossible. Catastrophic failures often lead to cascading systems failure. The term is most commonly used for structural failures, but has often been extended to many other disciplines in which total and irrecoverable loss occurs, such as a head crash occurrence on a
hard disk drive A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with mag ...
. Such failures are investigated using the methods of forensic engineering, which aims to isolate the cause or causes of failure. For example, catastrophic failure can be observed in steam turbine rotor failure, which can occur due to peak stress on the rotor; stress concentration increases up to a point at which it is excessive, leading ultimately to the failure of the disc. In firearms, catastrophic failure usually refers to a rupture or disintegration of the barrel or receiver of the gun when firing it. Some possible causes of this are an out-of-battery gun, an inadequate headspace, the use of incorrect ammunition, the use of ammunition with an incorrect propellant charge, a partially or fully obstructed barrel, or weakened metal in the barrel or receiver. A failure of this type, known colloquially as a "kaboom", or "kB" failure, can pose a threat not only to the user(s) but even many bystanders. In chemical engineering, thermal runaway can cause catastrophic failure.


Examples

Examples of catastrophic failure of engineered structures include: * The Tay Rail Bridge disaster of 1879, where the center of the bridge was completely destroyed while a train was crossing in a storm. The bridge was badly designed and its replacement was built as a separate structure upstream of the old. * The failure of the South Fork Dam in 1889 released 4.8 billion US gallons (18 billion litres) of water and killed over 2,200 people (popularly known as the Johnstown Flood). * The collapse of the St. Francis Dam in 1928 released 12.4 billion US gallons (47 billion litres) of water, resulting in a death toll of nearly 600 people. * The collapse of the first Tacoma Narrows Bridge of 1940, where the main deck of the road bridge was totally destroyed by dynamic oscillations in a wind. * The De Havilland Comet disasters of 1954, later determined to be structural failures due to metal fatigue that had not been anticipated at the corners of square windows used by the Comet 1. * The 62 Banqiao Dams failure event in China in 1975, due to Typhoon Nina. Approximately 86,000 people died from flooding and another 145,000 died from subsequent diseases, a total of 231,000 deaths. * The Hyatt Regency walkway collapse of 1981, where a suspended walkway in a hotel lobby in
Kansas City, Missouri Kansas City (abbreviated KC or KCMO) is the largest city in Missouri by population and area. As of the 2020 United States census, 2020 census, the city had a population of 508,090 in 2020, making it the List of United States cities by populat ...
, collapsed completely, killing over 100 people on and below the structure. * The Space Shuttle ''Challenger'' disaster of 1986, in which an O-ring of a rocket booster failed, causing the external fuel tank to break up and making the shuttle veer off course, subjecting it to aerodynamic forces beyond design tolerances; the entire crew and vehicle were lost. * The
nuclear reactor A nuclear reactor is a device used to initiate and control a fission nuclear chain reaction or nuclear fusion reactions. Nuclear reactors are used at nuclear power plants for electricity generation and in nuclear marine propulsion. Heat fr ...
at the Chernobyl power plant, which exploded in 1986 causing the release of a substantial amount of
radioactive Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is consi ...
materials. * The collapse of the Warsaw radio mast of 1991, which had up to that point held the title of world's tallest structure. * The Sampoong Department Store collapse of 1995, which happened due to structural weaknesses, killed 502 people and injured 937. * The terrorist attacks and subsequent fire at the World Trade Center on September 11, 2001, weakened the floor joists to the point of catastrophic failure. * The Space Shuttle ''Columbia'' disaster of 2003, where damage to a wing during launch resulted in total loss upon re-entry. * The collapse of the multi-span I-35W Mississippi River bridge on August 1, 2007. * The collapse of the Olivos-Tezonco Mexico City Metro overpass of 2021, which had structurally weakened over the years.


See also

* Dragon King Theory * List of bridge disasters * Seismic performance * Structural collapse *
Structural failure Structural integrity and failure is an aspect of engineering that deals with the ability of a structure to support a designed structural load (weight, force, etc.) without breaking and includes the study of past structural failures in order t ...
* Resonance disaster * Risks to civilization, humans and planet Earth


References

* * {{Reflist Building engineering Civil engineering Failure