Low cycle fatigue prediction for cylinder head considering notch stress-strain correction proposed by Neuber
محورهای موضوعی : فصلنامه شبیه سازی و تحلیل تکنولوژی های نوین در مهندسی مکانیک
Hojjat Ashouri
1
(Department of Mechanical Engineering, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran)
کلید واژه: low cycle fatigue, cylinder head, thermo-mechanical fatigue, Neuber method,
چکیده مقاله :
Due to the complex geometry and loading conditions, engines cylinder heads are the most challenging components among all parts internal combustion engines. They must withstand severe cyclic thermo-mechanical loading throughout their lifetime. Low cycle fatigue (LCF) prediction for cylinder head considering notch stress-strain correction proposed by Neuber was investigated. For this purpose, first Solidworks software was used to model the cylinder head. Then Ansys Workbench software was used to determine temperature and stress distribution of the cylinder head. Finally, in order to study the fatigue life based on LCF approach, the results were fed into the nCode Design Life software. The thermo-mechanical analysis showed that the maximum temperature and stress happen in the valves bridge between the two exhaust valves. The results of the FEA correspond with experimental tests performed by researchers, and demonstrated the cylinder heads cracked in this region. The numerical results showed that the area where the maximum temperature and stress is occurred is where the least LCF is predicted.
[1] Zhang, H., Cui, Y., Liang, G., Li, L., Zhang, G., Qiao, X. (2021). Fatigue life prediction analysis of high‑intensity marine diesel engine cylinder head based on fast thermal fluid solid coupling method. Journal of the Brazilian Society of Mechanical Sciences and Engineering, https://doi.org/10.1007/s40430-021-03049-7.
[2] Liu, Y., Annabattula, P., Mirmiran, S., Zhang, L., Chen, J., Gaikwad, S., Singh,K., (2020). Assessing Thermo-mechanical Fatigue of a Cast Aluminum Alloy Cylinder Head of an Internal Combustion Engine. SAE Technical Paper No.2020-011077.
[3] Seifert, T., Hazime, R., Chang, C-C., Hu, C. (2019). Constitutive Modeling and Thermo-mechanical Fatigue Life Predictions of A356-T6 Aluminum Cylinder Heads Considering Ageing Effects. SAE Technical Paper No.2019-01-0534.
[4] Lai, W-J., E-P, C. (2018). Development of a Thermal Fatigue Test Bench for Cylinder Head Materials. SAE Technical Paper No.2018-01-1410.
[5] Wang, Y., Xu, Z., Chen, M. (2020). Thermo-Mechanical Fatigue and Life Prediction of Turbocharged Engine Cylinder Head. SAE Technical Paper No.2020-01-1163.
[6] Chen, M., Wang, Y., Wu, W., Cui, Q., Wang, K., Wang, L. (2016). Thermal-Mechanical Fatigue Prediction of Aluminum Cylinder Head with Integrated Exhaust Manifold of a Turbo Charged Gasoline Engine. SAE Technical Paper No.2016-01-1085.
[7] Ghasemi, A. (2012). Cylinder Head High/Low Cycle Fatigue CAE Analysis. SAE International Paper No.2012-01-1999.
[8] Zeng, X., Luo, X., Jing, G., Zou, P., Lin, Y., Wei, T., Yuan, X., Ge, H. (2020). Engine Cylinder Head Thermal-Mechanical Fatigue Evaluation Technology and Platform Application. SAE International Journal of Engines, 13(1), 101-120.
[9] Gordon, A.P., Williams, E.P., Schulist, M., APPLICABLITY OF NEUBER’S RULE TO THERMOMECHANICAL FATIGUE, Proceedings of the ASME Turbo Expo 2008, Germany.
[10] Kujawski, D., Teo, J. LK. (2017). A Generalization of Neuber’s Rule for Numerical Applications, Journal of Structural Integrity Procedia, 5,883-888.
[11] Ashouri, H. (2015). Finite element analysis of thermo-mechanical stresses in diesel engines cylinder heads using a two-layer viscoplasticity model, International Journal of Automotive Engineering, 5(4), 2054-2064.
[12] Ashouri, H. (2016). Thermo-mechanical analysis of fatigue cracks of diesel engines cylinder heads using a two-layer two-layer viscoplasticity model with considering viscosity effects, International Journal of Automotive Engineering, 6(2), 2163-2175.
[13] Ashouri, H. (2017). Thermal barrier coating effect on stress and temperature distribution of diesel engines cylinder heads using a two layer viscoelasticity model with considering viscosity, International Journal of Automotive Engineering, 7(2), 2380-2392.
[14] Beranger, M., Fiark, J-M., Ammar, K., Ccailetaud, G. (2018). A new fatigue model including thermal ageing for low copper aluminum-silicon alloys, Procedia Engineering, 213, 720-729.
[15] Satyanarayana, K., Hanumantha Rao, T-V. (2018). Response optimization of four stroke variable compression ratio diesel engine cylinder head with stress analysis, Materials Today: Proceedings, 5, 19497-19506.
[16] Jinga, G-X., Zhang, M-X., Qub, S., Pangb, J-C., Fub, C-M., Donga, C., Lib, S-X., Xua, C-G., Zhangb, Z-F. (2018). Investigation into diesel engine cylinder head failure, Journal of Engineering Failure Analysis, 90, 36–46.
[17] Fontea, M., Reis, L., Infanteb, V., (2019). Freitas, M. Failure analysis of cylinder head studs of a four stroke marine diesel engine, Journal of Engineering Failure Analysis, 101, 298–308.
[18] Pingale, A., Chang,C-Chi., Perander, J. (2021). Data Driven Model to Predict Cylinder Head Fatigue Failure, SAE Technical Paper No. 2021-01-0801.
[19] Ashouri, H. (2022). Thermo-mechanical analysis of magnesium alloy diesel engines cylinder heads using a two-layer viscoplasticity model, Automotive Science and Engineering, 12(3), 3892-3904.
[20] Keshavarz, M., Keshavarz, A. (2021). Dynamic optimization of load step transient response of a turbocharged spark ignition engine focusing on valves timing. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 13 (4),53-65.
[21] Ren, P-R., Song, W., Zhong, G., Huang, W-Q., Zuo, Z-X., Zhao, C-Z., Yan, K-J. (2021). High-cycle fatigue failure analysis of cast Al-Si alloy engine
cylinder head, Journal of Engineering Failure Analysis, 127, 1-15.
[22] Zhang, H., Xie, G., Liang, G., Li, L., Zhang, G., Lei, J. (2022). Application of Scaled Specimens in Evaluating Thermal Fatigue Performance of Cylinder Head, https://doi.org/10.1007/s40799-022-00597-y.
[23] Mahajan, P., Bodake, R., Thakur, A. (2021). Optimization of Scallop Design for Cylinder Head of a Multi-Cylinder Diesel Engine for Reduction of Combustion Deck Temperatures and Simultaneously Enhancing Combustion Deck Fatigue Margin. SAE Technical Paper No.2021-01-1233.
[24] Neuber, H. (1961). Theory of stress concentration for shear-strained prismatical bodies with arbitrary non-linear stress-strain law, ASME Journal of Applied Mechanics, 28, 544–550.
[25] Chaboche, J.L. (2008). A review of some plasticity and viscoplasticity constitutive theories, International Journal of Plasticity, 24, 1642–1693.
[26] Dowling, N. E. (1998). Mechanical Behavior of Materials, Prentice Hall.
[27] Stephens, R., Fatemi, A., Fuchs. H. (2001). Metal fatigue in engineering, 2nd edition, John Wiley.
[28] Metzeger, M., Leidenfrost, M., Werner, E., Riedel, H., Seifert, T. (2014). Lifetime Prediction of EN-GJV 450 Cast Iron Cylinder Heads under Combined Thermo-mechanical and High Fatigue Loading, SAE International Paper No.2014-01-9047.
[29] Xuyang, G., Cheng, Y., Zhang, Z. (2013). Thermo-mechanical fatigue life prediction of heavy duty diesel engine cylinder head, ASME International Mechanical Engineering Congress and Exposition, California, U.S.A.
[30] Takahashi, Sasaki, K. (2010). Low cycle fatigue of aluminum alloy cylinder head in consideration of changing metrology microstructure, Journal of Procedia engineering, 2, pp.67-776.
[31] Angeloni, M. (2011). Fatigue life evaluation of A356 aluminum alloy used for engine cylinder head, Ph.D. Thesis, University of Sau Palu, Brazil.
[32] Ashouri, H. (2022). Fatigue life assessment for an aluminum alloy piston using stress gradient approach described in the FKM method, Journal of Solid Mechanics, 14(1), 57-66.
[33] Li, J., Wang, P., Cui, X., Li, K., Yi, R. ( 2013). Gray Cast Iron Cylinder Head Thermal Mechanical Fatigue Analysis, Proceedings of the FISITA 2012 World Automotive Congress Lecture Notes in Electrical Engineering, 189, 243-257.
