Fatigue failure of deck support beams on a vibrating screen

Vibrating screens are widely used for ore processing in the mining industry. They are subjected to an unusually high number of stress cycles during their lifetime - 10 million cycles are typically reached in approximately 185 hours of operation. The design of screens therefore calls for special atte...

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Bibliographic Details
Published inThe International journal of pressure vessels and piping Vol. 61; no. 2; pp. 315 - 327
Main Author Steyn, Jacques
Format Journal Article Conference Proceeding
LanguageEnglish
Published Oxford Elsevier Ltd 1995
Elsevier
Subjects
Beams and girders
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Engineering geology
Exact sciences and technology
Fatigue of materials
Geochemical exploration, methodology, general
Metallic and non-metallic deposits
Stresses
Structural design
Vibrating screens
stress
mines
deformation
technology
fractures
rupture
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ISSN0308-0161
1879-3541
DOI10.1016/0308-0161(94)00113-W

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Summary:Vibrating screens are widely used for ore processing in the mining industry. They are subjected to an unusually high number of stress cycles during their lifetime - 10 million cycles are typically reached in approximately 185 hours of operation. The design of screens therefore calls for special attention to fatigue detail. An apparently insignificant change in design detail can have a profound effect on the fatigue life of a screen. The catastrophic failure of two deck support beams on a vibrating screen is evidence of the above statement and the subject of this paper.
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ISSN:0308-0161
1879-3541
DOI:10.1016/0308-0161(94)00113-W