Journal of Failure Analysis and Prevention

, Volume 18, Issue 3, pp 545–553 | Cite as

Failure Analysis of a Mobile Crane: A Case Study

  • M. R. Alam
  • S. F. Hassan
  • M. A. Amin
  • K. Arif-Uz-Zaman
  • M. A. Karim
Technical Article---Peer-Reviewed


This paper presents metallurgical failure analysis method to find the root cause of a mobile crane turret bolts failure. Focus of the metallurgical analysis was to identify the root causes of the failure of turret bolts which led to the collapse of the mobile crane. The turret bolts were made of high strength steel. Comprehensive engineering analysis suggested that the turret bolts failure was initiated with fatigue. The fatigue was most likely initiated by the corrosion at the bolt surface and accelerated by the loosening of bolts due to long servicing life and/or fluctuating tensile load. Based on the investigations, recommendations are provided to guide the operation of the mobile crane to prevent the premature failure.


Turret bolt Failure Root cause analysis Fatigue Mobile crane Design 


  1. 1.
    S.F. Hassan, M.R. Alam, Failure analysis of gearbox and clutch shaft from a marine engine. J Fail. Anal. Prev. 10, 393–398 (2010)CrossRefGoogle Scholar
  2. 2.
    S.F. Hassan, Cement particle induced failure of cold potable water copper plumbing. Eng. Fail. Anal. 18, 505–509 (2011)CrossRefGoogle Scholar
  3. 3.
    S.F. Hassan, Hydrogen induced premature failure of massive cast medium carbon steel anchor fluke. J Mater. Des. 31, 956–964 (2010)CrossRefGoogle Scholar
  4. 4.
    S. Molaei, R. Alizadeh, M. Attarian, Y. Jaferian, A failure analysis study on the fractured connecting bolts of a filter press. Case Stud. Eng. Fail. Anal. 4, 26–38 (2015)CrossRefGoogle Scholar
  5. 5.
    M. Mohammadi, H.R. Salimi, Failure analysis of a gas turbine marriage bolt. J Fail. Anal. Prev. 7, 81–86 (2007)CrossRefGoogle Scholar
  6. 6.
    W. Reitz, Failure of bolt threads exposed to shear stress. J Fail. Anal. Prev. 13, 551–554 (2013)CrossRefGoogle Scholar
  7. 7.
    N. Krishnaraj, P.B. Srinivasan, V. Muthupandi, Investigation of a mounting bolt failure in an automobile air brake assembly. Pract. Fail. Anal. 3, 69–72 (2003)CrossRefGoogle Scholar
  8. 8.
    S. Griza, M.E.G. da Silva, S.V. dos Santos, E. Pizzio, T.R. Strohaecker, The effect of bolt length in the fatigue strength of M24x3 bolt studs. Eng. Fail. Anal. 34, 397–406 (2013)CrossRefGoogle Scholar
  9. 9.
    L. Li, R. Wang, Failure analysis on fracture of worm gear connecting bolts. Eng. Fail. Anal. 36, 439–446 (2014)CrossRefGoogle Scholar
  10. 10.
    W.D. Callister, D.G. Rethwisch, Materials Science and Engineering, 8th edn. (Wiley, Asia, 2011)Google Scholar
  11. 11.
    A.S.M. Handbook, Failure Analysis and Prevention, vol. 11 (ASM International, Materials Park, OH, 2002)Google Scholar
  12. 12.
    Boyer, H.E.: Properties and Selection: Irons and Steels, in Metal Handbook, 9th edn., vol. 1 (American Society for Metals, Metal Park, OH, 1978), pp. 130, 424–426, 680Google Scholar

Copyright information

© ASM International 2018

Authors and Affiliations

  1. 1.School of Chemistry, Physics and Mechanical EngineeringQueensland University of Technology (QUT)BrisbaneAustralia
  2. 2.Department of Mechanical EngineeringKing Fahd University of Petroleum and MineralsDhahranKingdom of Saudi Arabia

Personalised recommendations