Continuum representation of nonlinear three-dimensional periodic truss networks by on-the-fly homogenization

Raphaël N. Glaesener, Erik A. Träff, Bastian Telgen, Renato M. Canonica & Dennis M. Kochmann
Thanks to scale-bridging fabrication techniques, truss-based metamaterials have gained both popularity and complexity, ultimately resulting in structural networks whose description based on classical discrete numerical calculations becomes intractable. We here present a framework for the efficient and accurate simulation of large periodic three-dimensional (3D) truss networks undergoing nonlinear deformation (accounting for linear elastic beams undergoing finite rotations). Although the focus is on elastic beams, the method is sufficiently general to extend to inelastic material behavior....
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