Mechanical cloak via data-driven aperiodic metamaterial design

L Wang, J Boddapati, K Liu, P Zhu… - Proceedings of the …, 2022 - National Acad Sciences
Mechanical cloaks are materials engineered to manipulate the elastic response around
objects to make them indistinguishable from their homogeneous surroundings. Typically …

Two plateau characteristics of re-entrant auxetic honeycomb along concave direction

F Jiang, S Yang, C Qi, HT Liu - Thin-Walled Structures, 2022 - Elsevier
Auxetic honeycombs usually feature a single plateau stress, which hinders their
multifunctional applications. In this work, we aim at investigating the two plateau …

Single-test evaluation of directional elastic properties of anisotropic structured materials

J Boddapati, M Flaschel, S Kumar… - Journal of the …, 2023 - Elsevier
When the elastic properties of structured materials become direction-dependent, the number
of their descriptors increases. For example, in two-dimensions, the anisotropic behavior of …

[HTML][HTML] Planar structured materials with extreme elastic anisotropy

J Boddapati, C Daraio - Materials & Design, 2024 - Elsevier
Designing anisotropic structured materials by reducing symmetry results in unique
behaviors, such as shearing under uniaxial compression. While rank-deficient materials …

Crushing of additively manufactured thin-walled metallic lattices: Two-scale strain localization analysis

Y Balit, P Margerit, E Charkaluk, A Constantinescu - Mechanics of Materials, 2021 - Elsevier
The response of architectured structures is characterized by multi-scale kinematics, which
complex relation and effect on the engineering load response is still not completely …

Hierarchical design of auxetic metamaterial with peanut-shaped perforations for extreme deformation: Self-similar or not?

J Qu, Y Lei, Q Dong, H Wang - European Journal of Mechanics-A/Solids, 2024 - Elsevier
Hierarchical designs have exhibited great potential in reducing structural weight and
improving mechanical properties. However, the hierarchical design of perforated auxetic …

Detecting bifurcations in 2D periodic metamaterials from images

M Poncelet, C Combescure, F Amiot - Materials Letters, 2023 - Elsevier
Architectured materials are often used for their high strength-to-weight ratio. For this matter,
they are designed with high porosity which makes them sensitive to buckling under …