Abstract
In this paper the isogeometric collocation (IGA-C) method is used to solve the dynamic problem of geometrically exact beams. The kinematics of a spatial Timoshenko beam undergoing finite displacements and rotations involves the Lie group \({\mathrm{SO(3)}}\). Most of the computational complexities originate from the presence of such a non-additive and non-commutative rotation group. By employing the incremental rotation vector to describe the evolution of finite rotations, we discuss how the IGA-C method can efficiently be used in both explicit and implicit Newmark-based schemes.
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Marino, E., Kiendl, J., De Lorenzis, L. (2020). Isogeometric Collocation Methods for the Nonlinear Dynamics of Three-Dimensional Timoshenko Beams. In: Carcaterra, A., Paolone, A., Graziani, G. (eds) Proceedings of XXIV AIMETA Conference 2019. AIMETA 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-41057-5_96
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DOI: https://doi.org/10.1007/978-3-030-41057-5_96
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