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Journal of Failure Analysis and Prevention

, Volume 18, Issue 3, pp 619–627 | Cite as

Inverse Reconstruction of Fracture Splitting Connecting Rod and its Strength and Fatigue Life

  • Zhou Shi
  • Shuqing Kou
Technical Article---Peer-Reviewed

Abstract

To investigate the strength and fatigue life of a fracture-split connecting rod, this study combines experiments on connecting rod fracture splitting, three-dimensional reconstruction technology and the finite element technique. An actual fracture joint surface of a connecting rod is obtained by fracture-splitting experiment, and its mode is reconstructed by reverse engineering. Subsequently, the reconstructed fracture plane is imported into CAD to establish the actual three-dimensional model of the fracture-split connecting rod. The fatigue characteristics parameters of the fracture-split connecting rod material, namely C70S6, are obtained by a rotating bending fatigue test. Finally, by comparing to a traditional machining connecting rod, the inspection of the fatigue life of the fracture-splitting connecting rod is performed using the finite element method and the fatigue analysis theory. The results show that the fracture-split connecting rod meets the strength and fatigue life requirements.

Keywords

Fracture splitting connecting rod Joint surface Reverse engineering Strength analysis Fatigue life 

Notes

Acknowledgments

This research was financially supported by National Key Research and Development Plan (2016YFD0701102).

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Copyright information

© ASM International 2018

Authors and Affiliations

  1. 1.Roll Forging Research InstituteJilin UniversityChangchunChina

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