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Critical plane analysis refers to the analysis of stresses or strains as they are experienced by a particular plane in a material, as well as the identification of which plane is likely to experience the most extreme damage. Critical plane analysis is widely used in engineering to account for the effects of cyclic, multiaxial load histories on ...
Rainflow counting identifies the closed cycles in a stress-strain curve. The rainflow-counting algorithm is used in calculating the fatigue life of a component in order to convert a loading sequence of varying stress into a set of constant amplitude stress reversals with equivalent fatigue damage. The method successively extracts the smaller ...
Alarm fatigue occurs in many fields, including construction and mining (where vehicle back-up alarms sound so frequently that they often become senseless background noise), healthcare (where electronic monitors tracking clinical information such as vital signs and blood glucose sound alarms so frequently, and often for such minor reasons, that ...
The bright area is caused by sudden fracture. In materials science, fatigue is the initiation and propagation of cracks in a material due to cyclic loading. Once a fatigue crack has initiated, it grows a small amount with each loading cycle, typically producing striations on some parts of the fracture surface.
Prolonged fatigue is fatigue that persists for more than a month, and chronic fatigue is fatigue that lasts at least six consecutive months, which may be caused by a physical or psychological illness, or may be idiopathic (no known cause). Chronic fatigue with a known cause is twice as common as idiopathic chronic fatigue.
Letter frequency is the number of times letters of the alphabet appear on average in written language. Letter frequency analysis dates back to the Arab mathematician Al-Kindi ( c. 801 –873 AD), who formally developed the method to break ciphers. Letter frequency analysis gained importance in Europe with the development of movable type in 1450 ...
English is a West Germanic language in the Indo-European language family, whose speakers, called Anglophones, originated in Early Medieval England. [4] [5] [6] The namesake of the language is the Angles, one of the ancient Germanic peoples that migrated to the island of Great Britain.
Definition. Fatigue in a medical context is used to cover experiences of low energy that are not caused by normal life. [2] [3] A 2021 review proposed a definition for fatigue as a starting point for discussion: "A multi-dimensional phenomenon in which the biophysiological, cognitive, motivational and emotional state of the body is affected ...