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.
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This research was financially supported by National Key Research and Development Plan (2016YFD0701102).
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Shi, Z., Kou, S. Inverse Reconstruction of Fracture Splitting Connecting Rod and its Strength and Fatigue Life. J Fail. Anal. and Preven. 18, 619–627 (2018). https://doi.org/10.1007/s11668-018-0450-4
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DOI: https://doi.org/10.1007/s11668-018-0450-4