fatigue fracture


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Noun1.fatigue fracture - fracture resulting from excessive activity rather than a specific injury
fracture, break - breaking of hard tissue such as bone; "it was a nasty fracture"; "the break seems to have been caused by a fall"
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References in periodicals archive ?
* Facets observed on the fatigue fracture surfaces are persistent slip bands, which formed by cyclic plastic strain accumulation during slow crack propagation; these facets are located within single grains with slip systems aligned with the maximum shear stress direction.
A preliminary report by the inquiry team found the most likely cause of the April 29 tragedy near Bergen was a fatigue fracture in a second stage planet gear.
This test shows that the fatigue fracture of lead-free solder joints under the thermal cycling test is creep fracture, where the crack initiation always occurs in external edges of solders.
The magnitude, frequency, and rate of exposure make the bones less able to store energy, potentially resulting in fatigue fracture. The type of fracture--i.e., cross-sectional, longitudinal oblique, spiral, etc.--depends on the magnitude and velocity of the load and direction of load application.
The investigators are calling this failure mode "Cu lead fatigue fracture." Other issues stem from the higher elastic modulus of the quartz-filled alternatives, which leads to more package stress.
The character of the fatigue fracture of the specimens was observed by the electron scanning microscope at the Faculty of Mechanical Engineering at the University of Zilina.
The probability of crack detection during inspection and monitoring is generally evaluated in an intermediate stage, and subsequently linked to the (calculated) probability of fatigue fracture to obtain the probability of failure according Sustainable Bridges: 2006:
The volume's 15 chapters address component design, overview of the mechanisms of failure in heat treated steel components, mechanisms and causes of failure in heat treated steel parts, general aspects of failure analysis, failure in steel forging, failures from the casting process, sources of failures in carburized and carbonitrided components, fatigue fracture of nitrided layers, steel heat treatment failures due to quenching, steel failures due to tempering and isothermal heat treatment, failure analysis in tool steels, case studies of steel components failures in aerospace applications, failure analysis of powder metal steel components, induction hardening, and failure analysis of steel welds.
LEG INJURY: Sharpeyed Albert Park officials noticed that the statue of Brian Clough had a serious fatigue fracture on its supporting leg and had become unstable Picture by Peter Reimann
The specimen was cyclically loaded until a substantial fatigue fracture was observed.
The midfielder suf-fered a fatigue fracture to his right foot during last week's memorable victory over AC Milan in Istanbul.