The gyroid lattice is a metamaterial which allows chirality that is tunable by geometry. Gyroid lattices were made in chiral and non-chiral form by 3D printing. The chiral lattices exhibited nonclassical elastic effects including coupling between compressive stress and torsional deformation. Gyroid lattices can approach upper bounds on elastic modulus. Effective modulus is increased by distributed moments but is, for gyroid cylinders of sufficiently small radius, softened by a surface layer of incomplete cells. Such size dependence is similar to that in foams is but unlike most lattices.

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陀螺晶格的非经典手性弹性

陀螺晶格是一种超材料，它允许通过几何结构调整手性。通过3D打印将手性和非手性形式的甲状腺晶格制成。手性晶格表现出非经典的弹性效应，包括压应力与扭转变形之间的耦合。陀螺晶格可以接近弹性模量的上限。有效模量通过分布力矩而增加，但对于半径足够小的陀螺圆柱体，其有效模量会由于不完整晶胞的表面层而软化。这种尺寸依赖性类似于泡沫中的尺寸依赖性，但是与大多数晶格不同。