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Journal of Failure Analysis and Prevention

, Volume 13, Issue 5, pp 607–612 | Cite as

Experimental and Numerical Failure Analysis of Vertical Rods Used in Paper Molding Machine

  • Tezcan Sekercioglu
  • Engin Sarikaya
  • Osman Asi
Technical Article---Peer-Reviewed
  • 154 Downloads

Abstract

A failure investigation has been conducted on the vertical rods which used in paper molding machines. The vertical rods are important elements for paper molding machines to support press forces. Each of the vertical rods that are analyzed was broken into two parts in service. The two failed vertical rod specimens were exposed to various tests such as visual inspection, chemical analysis, hardness measurement, metallographic examination with optical and scanning electron microscopes. A stress analysis was also carried out by the finite element technique for the determination of highly stressed regions on the vertical rods. The results indicated that due to high stress concentrations, the vertical rods failed by fatigue with cracks initiated at the surface close to the shoulder region which has sharp corner.

Keywords

Failure analysis Fatigue failure Fracture Microhardness SEM Stress concentration 

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Copyright information

© ASM International 2013

Authors and Affiliations

  1. 1.Mechanical Engineering Department, Engineering FacultyPamukkale UniversityDenizliTurkey
  2. 2.Dentas Paper Industries Inc.DenizliTurkey
  3. 3.Department of Mechanical Engineering, Engineering FacultyUsak UniversityUsakTurkey

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