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A Comparative Study on Non-Linear Analysis Using Explicit and Implicit Techniques & Fatigue Life Estimation of Semi-Elliptical Leaf Spring
Technical Paper
2018-01-0472
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Leaf spring is a vital suspension component, such that the failure of leaf spring could cause fatal accidents. Due to frequent failures of leaf springs on vehicles, a method is developed to perform the numerical analysis using explicit solver which provides insightful analysis of leaf springs to prevent the occurrence of failure during engineering design. Since fatigue life assessment of leaf springs is a significant aspect during the design stage and due to the limitation of non-compatibility of output file of explicit solver for fatigue analysis, various studies are conducted and implicit solver is considered to perform FEA simulation of leaf spring. The present study delineates comparison of non-linear analysis of semi-elliptical leaf spring using explicit solver with that of implicit solver. Analysis using implicit solver gives us an advantage to export the model in fatigue life estimation solver which is not possible using explicit solver. The aim of this study is to establish correlation between FEA simulation (both explicit and implicit methods) and Rig test data for a semi-elliptical suspension leaf spring. This method would then be used to predict durability and other suspension properties like spring rate from the leaf geometry at design stage itself. The stiffness, stresses and load carrying capacity obtained from FEA is compared with that of test rig results keeping the same boundary and loading conditions. Correlations have been achieved in both spring rate (90%) and Stress (95%) at measured strain gauge locations between the Rig test and FEA results. The simulation results indicated that the implicit method is superior to that of explicit method and also helpful for fatigue life estimation of leaf spring. After co-relating the results using both the methods, the life of the leaf spring is determined which is further co-related with test rig results. The Correlation has helped in reducing product design time and cost of running the rig by predicting the behaviour of leaf spring under various loading conditions using finite element analysis.
Authors
Citation
Kurna, S. and Mehndiratta, A., "A Comparative Study on Non-Linear Analysis Using Explicit and Implicit Techniques & Fatigue Life Estimation of Semi-Elliptical Leaf Spring," SAE Technical Paper 2018-01-0472, 2018, https://doi.org/10.4271/2018-01-0472.Also In
References
- Kong , Y.S. , Omar , M.Z. , Chua , L.B. , and Abdullah , S. Stress Behavior of a Novel Parabolic Spring for Light Duty Vehicle Int Rev Mechanical Engineering 6 3 617 620 2012
- Charde , R.B. and Bhope , B.V. Investigation of Stresses in Master Leaf of Leaf Spring by FEM and Its Experimental Verification International Journal Engineering Science and Technology 4 2 633 640 2012
- Ashok , D. , Mallikarjun , M.V. , and Mamilla , V.R. Design and Structural Analysis of Composite Multileaf Spring International Journal of Emerging Trends in Engineering and Development 5 2 30 37 2012
- Mithari , R. , Patil , A. , and Aitavade , E.N. Analysis of Composite Leaf Spring by Using Analytical & FEA International Journal of Engineering Science and Technology 4 12 4809 4814 2012
- Gebremeskel , S.A. Design, Simulation, and Prototyping of Single Composite Leaf Spring for Light Weight Vehicle Global Journal of Researches in Engineering 12 7 20 29 2012
- Krishan , K. and Aggarwal , M.L. A Finite Element Approach for Analysis of a Multi Leaf Spring Using CAE Tools Research Journal of Recent Sciences 1 2 92 96 2012
- Kong , Y.S. , Omar , M.Z. , Chua , L.B. , and Abdullah , S. Stress Behavior of a Novel Parabolic Spring for Light Duty Vehicle International Review of Mechanical Engineering 6 3 617 620 2012
- Qin , P.Y. , Dentel , G. , and Mesh , M. Multi-Leaf Spring and Hotchkiss Suspension CAE Simulation Proceedings of the Abaqus User’s Conference 2002
- Gao , Q. , Chen , J. , Wang , L. , Xu , S. et al. Multiobjective Optimization Design of a Fractional Order PID Controller for a Gun Control System The Scientific World Journal 2013 1 8 2013
- Kane , C. , Marsden , J.E. , Ortiz , M. , and West , M. Variational Integrators and the Newmark Algorithm for Conservative and Dissipative Mechanical Systems International Journal for Numerical Methods in Engineering 49 1295 1325 2000
- Chang , S. Studies of Newmark Method for Solving Nonlinear Systems: (I) Basic Analysis Journal of the Chinese Institute of Engineers 27 5 651 662 2004
- Lee , H.P. , Sun , J.S. , and Lee , K.H. Comparison of Implicit and Explicit Finite Element Methods for Dynamic Problems Journal of Materials Processing Technology 105 110 118 2000
- Angelova , D. , Yordanova , R. , Lazarova , T. , and Yankova , S. On Fatigue Behavior of Two Spring Steels. Part I: Wöhler Curves and Fractured Surfaces Procedia Materials Science 3 1453 1458 2014