Compliance of Fasteners in Metal-Composite Joints

Abstract:

The greatest difficulties in creating a new structure or upgrading an old one are associated with designing joints and connecting parts of the structure, especially composite and metal ones. Nowadays, the problem of designing and improving such joints is timely and is being actively studied so that the best solutions are found. The article presents the research carried out to determine the main parameters of elements of mechanical joints made of polymer composite materials, as factors affecting the requirements for precision of connection compliance estimation. There has been found the influence of the number of fastener rows on estimating the maximum forces which act in the joint, as well as the influence of the ratio of the connection compliance to the compliance of the part. A field of possible states of the joint has been built. Within the field, the following areas have been identified: the area of high sensitivity to precision of estimating the parameters of the joint elements, requiring experimental confirmation and more accurate models; the area of average sensitivity of the joint to precision of estimating the parameters of its elements, permitting the use of known dependences; and the area of low sensitivity, where simplified models can be used. In the course of the developed model testing, joint samples were tested to evaluate the force connection compliance, and a reference variant was calculated using the Douglas formula. The reference variant of the joint sample was chosen based on the principle of equal compliances of the parts to be joined, presented by a series of samples assembled from a composite package of 80 layers and two surface layers made of 3.98 mm-thick steel. The parts were connected with steel bolts with a diameter of 6 and 8 mm. Numerically, the ratio of the connection compliance to the part compliance is 85...96 for the experimental data, and 9...10 for the calculated data. This indicated that the joint was in the transition area between high and medium sensitivity of the joint to the accuracy of compliance estimation, which requires continuous refinement of the connection parameters.

• Periodical: Solid State Phenomena (Volume 334)
• Pages: 162-172
• DOI: https://doi.org/10.4028/p-4637ix
• Online since: July 2022
• Authors: Oleksandr Dveirin, Anton Tsaritsynskyi, Tetyana Nabokina, Andrii Kondratiev*
• Keywords: Force Connection, Number of Rows, Parts to be Joined, Sensitivity Area, Stiffness Ratio

References

[1] A. Lovska, O. Fomin, A new fastener to ensure the reliability of a passenger car body on a train ferry, Acta Polytech., 60(6) (2020) 478-485.

DOI: 10.14311/ap.2020.60.0478

[2] A. Kondratiev, V. Píštěk, L. Smovziuk, M. Shevtsova, A. Fomina, P. Kučera, A. Prokop, Effects of the Temperature–Time Regime of Curing of Composite Patch on Repair Process Efficiency, Polym., 13(24) (2021) 4342.

DOI: 10.3390/polym13244342

[3] T. Temesi, T. Czigany, Integrated Structures from Dissimilar Materials: The Future Belongs to Aluminum–Polymer Joints, Adv. Eng. Mater., 22(8) (2020) 2000007.

DOI: 10.1002/adem.202000007

[4] S. Ugrimov, N. Smetankina, O. Kravchenko, V. Yareshchenko, Analysis of Laminated Composites Subjected to Impact, Springer International Publishing, in Integrated Computer Technologies in Mechanical Engineering - 2020, Cham, 2021, 188 (2021) 234-246.

DOI: 10.1007/978-3-030-66717-7_19

[5] S.Y. Yoo, C.H. Kim, J.H. Kweon, J.H. Choi, The structural analysis and strength evaluation of the rivet nut joint for composite repair, Compos. Struct., 136 (2016) 662-668.

DOI: 10.1016/j.compstruct.2015.11.012

[6] V. Kombarov, Y. Kryzhyvets, I. Biletskyi, Y. Tsegelnyk, Y. Aksonov, L. Piddubna, Numerical Control of Fiberglass Pipe Bends Manufacturing, 2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek), (2021) 357-362.

DOI: 10.1109/khpiweek53812.2021.9570068

[7] Y. Otrosh, Y. Rybka, O. Danilin, M. Zhuravskyi, Assessment of the technical state and the possibility of its control for the further safe operation of building structures of mining facilities, E3S Web of Conferences, 123 (2019) 01012.

DOI: 10.1051/e3sconf/201912301012

[8] F. Sen, K. Aldas, Effects of Using Different Metal Materials on Stresses in Metal-Composite Hybrid Joints, Çankaya Univ. J. Human. Soc. Sci., 8 (2011) 1-14.

[9] Y. Otrosh, A. Kovalov, O. Semkiv, I. Rudeshko, V. Diven, Methodology remaining lifetime determination of the building structures, MATEC Web Conf., 230 (2018) 02023.

DOI: 10.1051/matecconf/201823002023

[10] J. Xiang, S. Zhao, D. Li, Y. Wu, An improved spring method for calculating the load distribution in multi-bolt composite joints, Compos. Part B: Eng., 117 (2017) 1-8.

DOI: 10.1016/j.compositesb.2017.02.024

[11] V.S. Romanov, M. Heidari-Rarani, L. Lessard, A parametric study on static behavior and load sharing of multi-bolt hybrid bonded/bolted composite joints, Compos. Part B: Eng., 217 (2021) 108897.

DOI: 10.1016/j.compositesb.2021.108897

[12] O.Z. Dveirin, O.V. Andreev, A.V. Kondrat'ev, V.Y. Haidachuk, Stressed State in the Vicinity of a Hole in Mechanical Joint of Composite Parts, Int. Appl. Mechan., 57(2) (2021) 234-247.

DOI: 10.1007/s10778-021-01076-4

[13] A. Kondratiev, V. Píštěk, L. Smovziuk, M. Shevtsova, A. Fomina, P. Kučera, Stress–strain behaviour of reparable composite panel with step–variable thickness, Polym., 13(21) (2021) 3830.

DOI: 10.3390/polym13213830

[14] S. Chandregowda, G.R.C. Reddy, Evaluation of fastener stiffness modelling methods for aircraft structural joints, AIP Conf. Proceed., 1943(1) (2018) 020001.

DOI: 10.1063/1.5029577

[15] G. Beketova, M. Shevtsova, V. Symonov, Static and Fatigue Characteristics of Pinned Metal-Composite Joints, Mechan. Compos. Mater., 55(5) (2019) 655-666.

DOI: 10.1007/s11029-019-09842-9

[16] V. Eremin, A. Bolshikh, V. Koroliskii, K. Shelkov, Methods for flexibility determination of bolted joints: empirical formula review, J. Physics: Conf. Series, 1925(1) (2021) 012058.

DOI: 10.1088/1742-6596/1925/1/012058

[17] A.V. Kondratiev, V.E. Gaidachuk, Mathematical Analysis of Technological Parameters for Producing Superfine Prepregs by Flattening Carbon Fibers, Mechan. Compos. Mater., 57(1) (2021) 91-100.

DOI: 10.1007/s11029-021-09936-3

[18] K. Ramaswamy, R.M. O'Higgins, M.C. Corbett, M.A. McCarthy, C.T. McCarthy, Quasi-static and dynamic performance of novel interlocked hybrid metal-composite joints, Compos. Struct., 253 (2020) 112769.

DOI: 10.1016/j.compstruct.2020.112769

[19] R. Martins, S.P. Ernani, L.A, Influence of Types of Discrete Modelling of Fasteners in FEM Models, Proc. Int. Conf. on NAFEMS World Congress, (2017).

[20] P.P. Yuan, W.X. Ren, J. Zhang, Dynamic tests and model updating of nonlinear beam structures with bolted joints, Mech. Syst. Signal Proc., 126 (2019) 193-210.

DOI: 10.1016/j.ymssp.2019.02.033

[21] V.P. Eremin, A. Bolshikh, Global-local modeling of single-shear composite – metal and composite – composite bolt joints in aircraft structural components, Eng. J.: Sci. Innovat., 5(101) (2020).

DOI: 10.18698/2308-6033-2020-5-1981

[22] C. Gerendt, A. Dean, T. Mahrholz, N. Englisch, S. Krause, R. Rolfes, On the progressive fatigue failure of mechanical composite joints: Numerical simulation and experimental validation, Compos. Struct., 248 (2020) 112488.

DOI: 10.1016/j.compstruct.2020.112488

[23] A. Kondratiev, V. Píštěk, S. Purhina, M. Shevtsova, A. Fomina, P. Kučera, Self-Heating Mould for Composite Manufacturing, Polym., 13(18) (2021) 3074.

DOI: 10.3390/polym13183074

[24] R. Medeiros, M. Ribeiro, V. Tita, Experimental methodology for testing metal-composite bolted joints, J. Miner., Met. Mater. Eng., 2 (2016) 11-22.

DOI: 10.20941/2414-2115.2016.02.3

[25] V. Golovanevskiy, A. Kondratiev, Elastic Properties of Steel-Cord Rubber Conveyor Belt, Exper. Techn., 45(2) (2021) 217-226.

DOI: 10.1007/s40799-021-00439-3

[26] L. Adamos, T. Loutas, Challenges in the fatigue crack growth characterization of metal/composite joints: A compliance-based investigation of a Ti/CFRP joint, Int. J. Fatigue, (148) (2021) 106233.

DOI: 10.1016/j.ijfatigue.2021.106233

[27] I.I. Sorokina, M.V. Astahov, E.V. Slavkina, Statistical Analysis of Test Results of Metal-Composite Compounds Under Action of Shear, in Proceedings of the 6th International Conference on Industrial Engineering (ICIE 2020). Lecture Notes in Mechanical Engineering, Springer, Cham, (2021) 456-463.

DOI: 10.1007/978-3-030-54814-8_54

[28] M.V. Astahov, I.I. Sorokina, E.V. Slavkina, To the Question of an Experimental Assessment of the Fatigue Characteristics of a Transversal Metal-Composite Compound, Solid State Phenom., 299 (2020) 241-245.

DOI: 10.4028/www.scientific.net/ssp.299.241

[29] S. Akbarpour, Hallström, Strength improvement of bolted joints in composite materials by use of patched metal inserts, Compos. Struct., 252 (2020) 112628.

DOI: 10.1016/j.compstruct.2020.112628

[30] D. Yoon, S. Kim, J. Kim, Y. Doh, Study on bearing strength and failure mode of a carbon-epoxy composite laminate for designing bolted joint structures, Compos. Struct., 239 (2020) 112023.

DOI: 10.1016/j.compstruct.2020.112023

[31] O. Dveirin, A. Tsaritsynskyy, T. Nabokina, A. Kondratiev, Assessment of Error of the Experimental Determination of Interlaminar Shear Strength,. In: Nechyporuk M., Pavlikov V., Kritskiy D. (eds) ICTM 2021. Lecture Notes in Networks and Systems. Springer, Cham, 367 (2021).

DOI: 10.1007/978-3-030-94259-5_2

[32] V. Shah, Handbook of plastics testing and failure analysis, fourth ed., Hoboken, NJ: John Wiley and Sons, Inc., (2020).