Journal of Failure Analysis and Prevention

, Volume 15, Issue 2, pp 311–319 | Cite as

Fatigue Fracture of Truck Diesel Engine Connecting-Rods

Technical Article---Peer-Reviewed

Abstract

Failure of any component in a vehicle, even a small part, may result in an out of control vehicle and possible catastrophic accident. In this paper, two case studies regarding the failure of truck diesel engine connecting-rods are presented. Fatigue is the dominant failure mode of the two connecting-rods. The occurrence of an abnormal load in operation and the presence of a thick decarburization layer on the external surface of the rod-body are, respectively, responsible for the fatigue failure of the two connecting-rods.

Keywords

Connecting-rod Fatigue fracture Abnormal load Decarburization 

Notes

Acknowledgment

The project is supported by “the Fundamental Research Funds for the Central Universities (No. 3132014323).”

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Copyright information

© ASM International 2015

Authors and Affiliations

  1. 1.Key Laboratory of Ship-Machinery Maintenance & ManufactureMinistry of CommunicationDalianPeople’s Republic of China
  2. 2.Department of Materials Science and EngineeringDalian Maritime UniversityDalianPeople’s Republic of China

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