Abstract
This chapter presents a higher-order beam analysis of a joint structure in which multiple straight box beam members are connected at a joint, as shown in Fig. 10.1a. Owing to extensive section deformation occurring near the joint, the overall structural behavior of the joint structure becomes considerably more flexible than predicted by the classical beam theory (Donders et al. (2009); Mundo et al. (2009)). One can certainly expect improved or more accurate predictions with a higher-order beam theory, but the field variables of multiple box beams at the joint are difficult to match (Basaglia et al. (2012); Basaglia et al. (2018); Choi et al. (2012); Choi and Kim (2016a, 2016b); Jang et al. (2008); Jang and Kim (2009); Jang et al. (2013). Unless they are matched accurately, there is no way to make the use of the advantages of a higher-order beam theory which is shown to be accurate for straight box beams without any joints.
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Notes
- 1.
One can refer to Choi and Kim (2016b) to investigate joint flexibility by in-plane bending or extension loads.
- 2.
Because the direction of this moment is normal to each edge, it is called the wall-normal edge moment.
- 3.
Lagrange multipliers are generally used to solve an optimization problem by identifying the maximum or minimum value of a functional subjected to equality constraints.
- 4.
See the paragraph below Eq. (3.10) in Chap. 3.
References
Basaglia C, Camotim D, Silvestre N (2012) Torsion warping transmission at thin-walled frame joints: kinematics, modelling and structural response. J Constr Steel Res 69(1):39–53
Basaglia C, Camotim D, Coda HB (2018) Generalised beam theory (GBT) formulation to analyse the vibration behaviour of thin-walled steel frames. Thin-Walled Struct 127:259–274
Choi S, Jang G-W, Kim YY (2012) Exact matching condition at a joint of thin-walled box beams under out-of-plane bending and torsion. J Appl Mech 79(5):051018
Choi S, Kim YY (2016a) Exact matching at a joint of multiply-connected box beams under out-of-plane bending and torsion. Eng Struct 124:96–112
Choi S, Kim YY (2016b) Analysis of two box beams-joint systems under in-plane bending and axial loads by one-dimensional higher-order beam theory. Int J Solids Struct 90:69–94
Donders S, Takahashi Y, Hadjit R, Langenhove TV, Brughmans M (2009) A reduced beam and joint concept modeling approach to optimize global vehicle body dynamics. Finite Elem Anal Des 45(6–7):439–455
Jang GW, Kim KJ, Kim YY (2008) Higher-order beam analysis of box beams connected at angled joints subject to out-of-plane bending and torsion. Int J Numer Meth Eng 75(11):1361–1384
Jang G-W, Kim YY (2009) Higher-order in-plane bending analysis of box beams connected at an angled joint considering cross-sectional bending warping and distortion. Thin-Walled Struct 47(12):1478–1489
Jang G-W, Choi S, Kim YY (2013) Analysis of three thin-walled box beams connected at a joint under out-of-plane bending loads. ASCE J Eng Mech 139(10):1350–1361
Mundo D, Hadjit R, Donders S, Brughmans M, Mas P, Desmet W (2009) Simplified modelling of joints and beam-like structures for BIW optimization in a concept phase of the vehicle design process. Finite Elem Anal Des 45(6–7):456–462
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Kim, Y.Y., Jang, GW., Choi, S. (2023). Joint Structures of Box Beams. In: Analysis of Thin-Walled Beams. Solid Mechanics and Its Applications, vol 257. Springer, Singapore. https://doi.org/10.1007/978-981-19-7772-5_10
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DOI: https://doi.org/10.1007/978-981-19-7772-5_10
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