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Author Jur, Tim A. ♦ Windham, Ronald L.
Source SpringerLink
Content type Text
Publisher Springer US
File Format PDF
Copyright Year ©2009
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword Hydraulic piston ♦ Fatigue fracture ♦ Clevis ♦ Stress analysis ♦ Closed ring ♦ Quality Control, Reliability, Safety and Risk ♦ Structural Mechanics ♦ Mechanics ♦ Characterization and Evaluation of Materials ♦ Tribology, Corrosion and Coatings ♦ Materials Science
Abstract A hydraulic piston assembly fractured while in service. The fracture involved a clevis assembled to the end of the cylinder piston rod. In fact, there were two fractures: one where a threaded end on the clevis was assembled to the piston rod and a second involving a fracture through the wall of the clevis. Analysis by plant personnel suggested that the stresses involved were small and that fracture should not have been expected. As a more detailed stress analysis of the clevis ring demonstrated, the stresses associated with the clevis, treated as a closed ring, were more than sufficient to have resulted in the fracture through the clevis wall. The other fracture, the fracture at the point of assembly to the piston rod, was proved to be secondary. Stress analysis as well as fracture analysis proved the point and allowed appropriate recommendations to be made to avoid a reoccurrence.
ISSN 15477029
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-09-19
Publisher Place Boston
e-ISSN 18641245
Journal Journal of Failure Analysis and Prevention
Volume Number 9
Issue Number 6
Page Count 5
Starting Page 558
Ending Page 562


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Source: SpringerLink