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Bilinear stiffness and bimodular Poisson's ratio in cylindrical sinusoidal lattices through topology morphing (2024)
Journal Article
Sundararaman, V., O'Donnell, M. P., Chenchiah, I. V., & Weaver, P. M. (2024). Bilinear stiffness and bimodular Poisson's ratio in cylindrical sinusoidal lattices through topology morphing. Materials and Design, Article 112980. https://doi.org/10.1016/j.matdes.2024.112980

Bilinear elastic behaviour allows structural designs to respond in either a stiff or compliant manner depending on the load. Here a cylindrical sinusoidal lattice structure is described that stiffens beyond a certain load. When subjected to axial com... Read More about Bilinear stiffness and bimodular Poisson's ratio in cylindrical sinusoidal lattices through topology morphing.

Adaptive stiffness in lattice metastructures through tensile-buckling inspired topology morphing (2023)
Journal Article
Sundararaman, V., McHale, C., O'Donnell, M. P., Chenchiah, I. V., & Weaver, P. M. (2024). Adaptive stiffness in lattice metastructures through tensile-buckling inspired topology morphing. International Journal of Solids and Structures, 289, Article 112637. https://doi.org/10.1016/j.ijsolstr.2023.112637

This paper explores the use of simultaneous tensile buckling of unit cells to induce a transformation in lattice topology. Under tension, unit cells undergo passive transformation from a rectangle-like to a triangle-/pentagon-like topology, with an a... Read More about Adaptive stiffness in lattice metastructures through tensile-buckling inspired topology morphing.