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Article Dans Une Revue Physical Review Letters Année : 2021

Bending Response of a Book with Internal Friction

Basile Audoly
Samuel Poincloux
Tian Chen
Pedro Reis
Tim Chen
  • Fonction : Auteur

Résumé

We study the bending of a book-like system, comprising a stack of elastic plates coupled through friction. The behavior of this layered system is rich and nontrivial, with a non-additive enhancement of the apparent stiffness and a significant hysteretic response. A dimension reduction procedure is employed to develop a centerline-based theory describing the stack as a non-linear planar rod with internal shear. We consider the coupling between the nonlinear geometry and the elasticity of the stacked plates, treating the interlayer friction perturbatively. This model yields predictions for the stack's mechanical response in three-point bending that are in excellent agreement with our experiments. Remarkably, we find that the energy dissipated during deformation can be rationalized over three orders of magnitude, including the regimes of a thick stack with large deflection. This robust dissipative mechanism could be harnessed to design new classes of low-cost and efficient damping devices.
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Dates et versions

hal-03381446 , version 1 (16-10-2021)

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Basile Audoly, Samuel Poincloux, Tian Chen, Pedro Reis, Tim Chen. Bending Response of a Book with Internal Friction. Physical Review Letters, 2021, 126 (21), ⟨10.1103/PhysRevLett.126.218004⟩. ⟨hal-03381446⟩
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