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Journal of Failure Analysis and Prevention

, Volume 18, Issue 6, pp 1548–1553 | Cite as

Failure Analysis of the Hydraulic Primary Standard Pressure Balance Piston

  • Ali Mamedov
  • Zeynep Parlar
Technical Article---Peer-Reviewed
  • 53 Downloads

Abstract

In this study, failure analysis of piston which belongs to primary standard pressure balance unit is investigated. The strength analyses of the piston were carried out analytically, considering the work-loading conditions. All the analyses were conducted in line with the fundamental strength theories using the finite element method. The material analyses were performed by EDX spectrometer, and fracture surfaces were investigated under scanning electron microscope. Findings revealed that the piston was designed appropriately and the material selection for compression loading was made correctly. Results also showed that fracture could have occurred under small bending, torsion or the combined bending/torsion loadings. Viewed together, although the piston manufactured from WC–Co was designed appropriately for compression loading, the fracture occurred due to external torsion loading.

Keywords

Failure analysis Fracture surface morphology SEM FEM WC–Co 

Notes

Acknowledgments

The authors would like to acknowledge the National Metrology Institute at the Scientific and Technological Research Council of Turkey for their support of this study.

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Copyright information

© ASM International 2018

Authors and Affiliations

  1. 1.College of Engineering and TechnologyAmerican University of the Middle EastEqailaKuwait
  2. 2.Department of Mechanical EngineeringIstanbul Technical UniversityIstanbulTurkey

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