This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fatigue Life Analysis of Crankshaft at Various Surface Treatments
Technical Paper
2001-01-3374
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The service life of engine crankshaft is closely related to its material characteristics. Without any dimensional modification, one can significantly improve the fatigue life of crankshaft by applying various surface treatments. The objective of this research is to predict and to quantify the fatigue life of crankshaft at different alloy design and surface treatments - microalloyed steel vs. carbon steel as well as nitriding vs. fillet rolling. It is found that nitriding improves more than 60% in fatigue life depends upon matrix hardness. This study also demonstrates a relationship between fatigue life and fillet rolling force. We observed that the fillet rolled specimens with the applied force of 500∼900kgf exhibit 40∼80% improvement in fatigue life compared to non-treated sample. Consequently, methods are proposed to quantify and normalize fatigue life at various treatments to optimize crankshaft design for maximizing the engine performance.
Recommended Content
Authors
Topic
Citation
Park, H., Ko, Y., and Jung, S., "Fatigue Life Analysis of Crankshaft at Various Surface Treatments," SAE Technical Paper 2001-01-3374, 2001, https://doi.org/10.4271/2001-01-3374.Also In
References
- Matsumura Y. et al. “Development of nitrocarburizing steel for crankshaft” SAE 1999-01-0601
- He C. “The study of reliability of crankshaft in Diesel engine” FISITA 2000-G297
- Pellux R. et al. “Fatigue striations and failure analysis” Int'l Conf. of Failure analysis Montreal, Canada July 8-11 1991 45
- Setiyono H. “Analytical investigation on fatigue behavior of carbon steel materials subjected to rotating bending loads” FISITA 2000-A018
- Lee K.Y. “Mechanical behaviors of materials” Yonsei Univ. Publish. Seoul, Korea 1999
- Takada H. et al. “Study on high strength and toughness ferrite-pearlite microalloyed forging steel” CAMP-ISIJ 5 1992 777
- Fuchs H. et al. “Metal fatigue in engineering” John Wiley & Sons 1980