Numerical Prediction of Fatigue Life of Crankshaft

Author(s):
R.Keshor Kumar, Thiagarajar College of engineering; T. Dharun Velmani ,Thiagarajar College of engineering
Keywords
Numerical Model, Dynamic Analysis, Torsion Test Analysis, Bending Test Analysis, Fatigue life
Abstract
In Automobile manufacturing plant, it was noticed that 7 out of 1000 crankshafts are prone to failure. This work is concentrated to identify the cause of failure in the crankshaft and to improve the fatigue life of the crankshaft by performing parametric study. In parametric study, the crankshaft is designed and analyzed in ANSYS WORKBENCH by varying the fillet radius of journal bearing. The maximum equivalent alternating stress and cycles to failure were predicted in numerical analysis. The cycles to failure are increased by varying the parameter and hence the fatigue life of crankshaft is improved.	
Reference
[1]	“Failure Analysis of four cylinder diesel engine crankshaft made form nodular cast iron” by G.H.Fahrrahi, F.Hemmati, S.M.H-Gangaraj, M.Sakhaei, S.Abolhassani, Volume 22, February 2011, pp. 21-28.
[2]	Farzin H. Montazersadgh and Ali Fatemi, “Stress Analysis and Optimization of Crankshafts Subject to Dynamic Loading”,A Final Project Report Submitted to the FIERF and AISI
[3]	Mahesh L. Raotole, D. B. Sadaphale,J. R.Chaudhari, “Prediction of Fatigue Life of Crank Shaft using S-N Approach”,International Journal of Emerging Technology and Advanced Engineering,Volume 3, Issue 2, February 2013, pp. 447-454.
[4]	Anant Prakash Agrawal and S. K. Srivastava, “Fatigue Life Prediction Of Crankshaft Based On Strain Life Theories”,International Journal of Engineering Research & Technology ISSN: 2278-0181,Vol. 1 Issue 8, October 2012, pp. 1-5.
[5]	Seema S. Shinde, C. S. Pathak and Manoj Ukhande,”Fatigue Life assessment of crankshaft under Bending and Torsional Loading”,International Journal of Engineering Research & Technology Vol. 2 Issue 11, November – 2013, ISSN: 2278-0181, pp 2197-2201.
[6]	Kanwar J. S. Gill, Pali Rosha, Subhash Chander, R. S. Bharaj,”Durability Analysis of Lightweight Crankshafts Design Using Geometrically Restricted Finite Element Simulation Techniques for Camless Engines”,International Conference of Advance Research and Innovation-2014, ISBN 978-93-5156-328-0, pp 56-68.
[7]	Vijay kumar Khasnis, Manoj Ukhande, Girish Tilekar,Rajesh Mane, Girish Shegavi,”Crankshaft Design Optimization to improve Dynamic Balancing and Fatigue Strength”, International Journal of Automotive Engineering 20154060, pp. 59-66.
[8]	Ms.Shweta Ambadas Naik,”Failure Analysis of Crankshaft by Finite Element Method-A Review”,International Journal of Engineering Trends and Technology – Volume 19 Number 5 – Jan 2015, pp. 233-239.
[9]	Amit Patil, Gajanan Datar and Amol Kolhe “Crankshaft Failure dude to fatigue”, IJMERR, ISSN 2278-0149, Volume 3, no 1, January 2014, 166-172.
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Other Details
Paper ID: GRDCF002020
Published in: Conference : International Conference on Innovations in Engineering and Technology (ICIET) - 2016
Page(s): 73 - 81
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