Mechanics of Advanced Materials and Structures, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 18
Published: Jan. 2, 2025
The classical multiscale homogenization methods can only take into account the pure microstructural effect, resulting in inability to accurately capture nonlocal interactions emerged from underlying microstructures of metamaterial structures. This paper explores interplay mechanism that artificial and develops a well-posed microstructure-emerged method capable capturing nonlocality is strictly related its extrinsic intrinsic length scales. First, we propose novel concentrated element model accounts for both effect interaction describe static response trusses. not considers but also further interaction, thus providing more comprehensive description Then, based on model, developed trusses with an accuracy comparable high-fidelity numerical methods. Since well-posed, closed-form solution displacement truss obtained. High-fidelity finite simulations show effective moduli different have significant effects, especially high porosity. Results indicate provides robust accurate representation truss, significantly outperforming consider effects.
Language: Английский