Vol. 19, No. 4, pp. 329-340 (2023)
INVESTIGATING FATIGUE MECHANISMS AND CRACK GROWTH IN
20MNTIB STEEL HIGH-STRENGTH BOLTS: AN EXPERIMENTAL AND
SIMULATION STUDY
Jin-Feng Jiao 1, 2, Li-Xuan Fan 2, Yong Liu 3, Hong-Gang Lei 2 and Qi Guo 2, *
1 Department of Architecture, Lyuliang University, Lyuliang, Shanxi Province, China
2 College of Civil Engineering, Taiyuan University of Technology, Taiyuan, Shanxi Province, China
3 Shandong Electric Power Engineering Consulting Institute Corp., Ltd, Jinan, Shandong Province, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 9 December 2022; Revised: 10 May 2023; Accepted: 11 May 2023
DOI:10.18057/IJASC.2023.19.4.2
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ABSTRACT
In this paper, axial-tensile, constant-amplitude fatigue experiments are performed on M24 high-strength bolts with grade 8.8 fabricated from 20MnTiB steel with a stress ratio (R) of 0.3, and their crack development is simulated. The stress range-fatigue life (S–N) curve is derived by using the experimental results. The fatigue mechanism is then investigated through strain and fractographic analyses. Moreover, the extended finite element method (XFEM) is applied for assessing the fatigue crack propagation behavior of the high-strength bolts. The findings reveal that the 20MnTiB steel bolt exhibits a threshold fatigue strength of 140.77 MPa at two million loading cycles, which is 1.68 times greater than the corresponding value for 35K steel bolts at the same stress ratio. The bolt's stable deformation stage constitutes 87% of its total fatigue life. The XFEM is capable of accurately predicting the fatigue crack propagation trajectory and the lifespan of the high-strength bolts. Our analysis indicates that the crack initially propagates predominantly along the bolt's circumferential direction, accounting for 85% of the overall crack propagation life, before transitioning to unstable growth and experiencing an exponential increase in length.
KEYWORDS
High-strength bolt, Constant-amplitude fatigue, Fatigue fracture propagation, Extended finite element method (XFEM), Stress intensity factor (SIF)
REFERENCES
[1] Mehmanparast, A., Lotfian, S. and Vipin, S.P., “A review of challenges and opportunities associated with bolted flange connections in the offshore wind industry”, Metals, 10(6), 732, 2020.
[2] Weijtjens, W., Stang, A., Devriendt, C. and Schaumann, P., “Bolted ring flanges in offshore-wind support structures - in-situ validation of load-transfer behavior”, Journal of Constructional Steel Research, 176, 106361, 2021.
[3] Yang, X., Lei, H.G. and Chen, Y.F., “Constant amplitude fatigue test research on M20 high-strength bolts in grid structure with bolt–sphere joints”, Advances in Structural Engineering, 20(10), 1466-1475, 2016.
[4] Si Q, Ding Y, Zong L, and Liu H, “Mechanical properties and simulation method of structural steel after high cycle fatigue damage”, Advanced steel construction, 19(1), 70-76, 2023.
[5] Yang, X. and Lei, H.G., “Constant amplitude fatigue test of high strength bolts in grid structures with bolt-sphere joints”, Steel and Composite Structures, 25(5), 571-579, 2017.
[6] Qiu, B., Yang, X., Zhou, Z.C. and Lei, H.G., “Experimental study on fatigue performance of M30 high-strength bolts in bolted spherical joints of grid structures”, Engineering structures, 205,110123, 2020.
[7] Jiao, J.F., Jia, P.P., Liu, Y., Liu, J.Q. and Lei, H.G., “Experimental study on constant amplitude fatigue of M24 high-strength bolts under critical stress ratio”, Journal of Taiyuan University of Technology, 50(06), 749-755, 2019. (in Chinese)
[8] Jiao, J.F., L, Z.X., Guo, Q., Liu, Y. and Lei, H.G., “Constant-amplitude fatigue behavior of M24 high-strength bolt of end-plate flange connection”, Structures, 34, 2041-2053, 2021.
[9] Liu, Y.Z., Chen, J., Zhang, X.F. and Tan, D., “Fatigue behavior of blind bolts under tensile cyclic loads”, Journal of Constructional Steel Research, 148, 16-27, 2018.
[10] Tizani, W., Norashidah, Abd Rahman, N. and Pitrakkos, T., “Fatigue life of an anchored blind-bolt loaded in tension”, Journal of Constructional Steel Research, 93, 1–8. 2014.
[11] Schaumann, P. and Rasmus, E., “Ermüdung sehr großer hv-schraubengarnituren”, Stahlbau, 85(9), 604-611, 2016.
[12] Jiang, W.Q., Mo, Z., Yang, L.Q., Liu, J.L. and Niu, Z.B., “Theoretical study on early stage self-loosening of bolted joint in lattice transmission tower under transverse load”, Advanced steel construction, 18(2), 574-584, 2022.
[13] Bartsch, H. and Feldmann, Markus., “Reassessment of fatigue detail categories of bolts and rods according to EC 3-1-9”, Journal of Constructional Steel Research, 180, 106588, 2021.
[14] Li, Z.H., Han, K., Chen, T., Yang, H.S., Liu, P., and Lu, Y.H., “Fatigue life prediction of nuclear reactor main bolt based on temperature effect and size effect”, International Journal of Fatigue, 152, 106443, 2021.
[15] Maljaars, J. and Euler, M., “Fatigue S–N curves of bolts and bolted connections for application in civil engineering structures”, International Journal of Fatigue, 151, 106355, 2021.
[16] Lochan, S., Mehmanparast, A. and Wintle, J., “A review of fatigue performance of bolted connections in offshore wind turbines”, Procedia Structural Integrity, 17, 276-283, 2019.
[17] Kaushik, V. and Anup, G., “Experimental and numerical investigation of mode-i & mode-ii fatigue crack growth in unidirectional composites using xiga-czm approach”, International Journal of Fatigue, 134, 105461, 2020.
[18] Liu, H., Hu, D.Y., Wang, P.Q., Wang, X., Jin, S. A. and Gu, Y.X., “Experimental and numerical investigations on the influence of cold expansion on low cycle fatigue life of bolt holes in aeroengine superalloy disk at elevated temperature”, International Journal of Fatigue, 132, 105390, 2020.
[19] Wang, Y.X., Ji, B.H., Fu, Z.Q. and Yao, Y., “Fatigue repairing craftmanship of deck-to-vertical stiffener weld in the steel bridge deck”, Advanced steel construction, 15(3), 232-241, 2019.
[20] Fang L, Fu Z.Q., Ji B.H., and Kainuma S., “Propagation mode and characteristics of fatigue cracks in steel bridge deck after drilling ahead of the crack tip”, Advanced steel construction, 18(2), 544-551, 2022.
[21] Gu M, Tong LW, Zhao XL, and Zhang YF., “Numerical analysis of fatigue behavior of welded cfchs t-joints”, Advanced steel construction, 10(4), 476-497. 2015.
[22] Shi, J. X., Chopp, D., Lua, J., Sukumar, N. and Belytschko, T.,“ Abaqus implementation of extended finite element method using a level set representation for three-dimensional fatigue crack growth and life predictions”, Engineering Fracture Mechanics, 77(14), 2840-2863, 2010.
[23] Malekan, M., Khosravi, A. and St-Pierre, L., “An Abaqus plug-in to simulate fatigue crack growth”, Engineering with Computers, 38(4), 2991-3005, 2021.
[24] Shu,Y.X., Li, Y.Z., Duan, M. and Yang,F., “An X-FEM approach for simulation of 3-D multiple fatigue cracks and application to double surface crack problems”, International Journal of Mechanical Sciences, 130, 331-349, 2017.
[25] Samaei, M., Zehsaz, M. and Chakherlou, T. N., “Experimental and numerical study of fatigue crack growth of aluminum alloy 2024-T3 single lap simple bolted and hybrid (adhesive/bolted) joints”, Engineering Failure Analysis, 59, 253-268, 2016.
[26] Bergara, A., Dorado J.I., Martín-Meizoso, A. and Martínez-Esnaola, J.M., “Fatigue crack propagation at aeronautic engine vane guides using the extended finite element method (XFEM)”, Mechanics of Advanced Materials and Structures, 28(8), 861-873, 2021.
[27] Ngoula, D.T, Beier, H.T. and Vormwald, M., “Fatigue crack growth in cruciform welded joints: Influence of residual stresses and of the weld toe geometry”, International Journal of Fatigue, 101, 253-262, 2017.
[28] Pandey, V.B., Singh, I.V., Mishra, B.K. Ahmad, S., Rao, A.V. and Kumar, V., “A new framework based on continuum damage mechanics and xfem for high cycle fatigue crack growth simulations”, Engineering Fracture Mechanics, 206, 172-200, 2019.
[29] Lin, X.B, and Smith, R.A., “Finite element modeling of fatigue crack growth of surface cracked plates: Part Ⅲ: stress intensity factor and fatigue crack growth life”, Engineering Fracture Mechanics, 63(5), 541-556, 1999.
[30] Yang, F.P. and Kuang, P.J., “Fatigue crack growth for a surface crack in a round bar under multi-axial loading condition”, Fatigue Fract. Eng. Mater. Struct, 28(11), 963-70, 2005.
[31] Kumar, S.S. and Prakash, R.V., “ Effect of helix angle on the stress intensity factor of a cracked threaded bolt”, Journal of Pressure Vessel Technology- Trans. ASME, 135(2), 12, 2013.
[32] Sharda, L, Mehmanparast, A. and Wintle, J., “A review of fatigue performance of bolted connections in offshore wind turbines” [A], The 3rd International Conference on Structural Integrity[C], Procedia Structural Integrity, 276-283, 2019.
[33] ISO 898-1: 2013, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws, and studs with specified property classes — Coarse thread and fine pitch thread. International Organization for Standardization, 2013.
[34] GB 50017-2017, Standard for design of steel structures. Ministry of Housing and Urban-Rural Development of the People’s Republic of China, Beijing, People’s Republic of China, 2017. (in Chinese)
[35] BS EN 1993-1-9:2005, Eurocode 3: Design of Steel Structures. Part 1-9: Fatigue, European Committee for Standardization; Brussels, Belgium, 2005.
[36] ANSI/AISC 360-16, Specification for Structural Steel Buildings, American Institute of Steel Construction, AISC Committee; Chicago, Illinois, USA, 2016.
[37] BS 7608:1993, Code of practice for fatigue design and assessment of steel structures, British Standards Institution; London, UK, 1993.
[38] Zhan, B., Liu, Y., Shang, W.N., Zhang, J.L. and Jiao J.F., “Experimental research on constant-amplitude fatigue characteristics of 8.8 grade M24 high-strength bolts”, Ind Constr, 50(09), 122-127,2020. (in Chinese)
[39] Munn, B.S. and Li, K., Investigation into the effect of thread root condition on the high cycle fatigue performance of a metric threaded fastener [C]. ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. 2010.
[40] Fett, T., Stress intensity factors, t-stresses, weight functions [M]. Karlsruhe: Universitätsverlag Karlsruhe, 2008.
[41] Paris, P. and Erdogan, F., “A critical analysis of crack propagation laws”, Journal of Basic Engineering, 85 (4), 528-533, 1963.
[42] BS 7910:2013+A1:2015, Guide to methods for assessing the acceptability of flaws in metallic structures, British Standards Institution; London, UK, 2013.
[43] Hirt, M.A. and Fisher, J.W., “Fatigue crack growth in welded beams”, Engineering Fracture Mechanics, 5(2), 415-429, 1973.
[44] Duan, H.C., “Numerical simulation and theoretical analysis of fatigue crack growth of steel pipe-welded hollow spherical joints”, Ph.D. Dissertation, Taiyuan: Taiyuan University of Technology, 2019. (in Chinese)