Mechanical metamaterial annular lattice structure based on bionic hierarchy

Abstract

The invention discloses a bionic hierarchy-based mechanical metamaterial annular lattice structure, which comprises a single-layer annular lattice structure and a double-layer annular lattice structure, each annular lattice structure consists of M * N * P annular structure units which are respectively arranged in an array along the X, Y and Z directions, M is greater than or equal to 1, N is greater than or equal to 1, and P is greater than or equal to 1; each single-layer annular structure unit comprises two elliptical rings which are perpendicular to each other along the diagonal edges of the cube; each double-layer annular structure unit comprises two oval rings perpendicular to each other along the diagonal edges of the cube and two inner oval rings arranged in the two oval rings. By introducing the biologically inspired annular design, the structure not only has the characteristics of light weight, high strength, high rigidity, excellent energy absorption performance and the like, but also can realize the full utilization of the structural space and the great improvement of the mechanical performance. The problems that an existing traditional artificial material structure is poor in mechanical performance, the grading mechanism is single, and obvious defects exist in the internal structure design are solved.

Description

technical field [0001] The invention belongs to the technical field of mechanical metamaterials, and specifically relates to a mechanical metamaterial annular lattice structure based on bionic levels. On the one hand, the internal space of the original BCC lattice structure is fully utilized; , enhancing the mechanical properties of the lattice structure. Background technique [0002] Mechanical properties are one of the key performance indicators of materials. In materials science and engineering applications, there is always a need for stronger, stiffer and lighter materials. Driven by the ever-increasing demands in the field of cutting-edge science and technology, substantial research efforts have been dedicated to upgrading materials design and fabrication paradigms, fundamentally driving continuous progress in the field of materials science and engineering over the past few decades. However, due to the fact that the current traditional man-made materials have a relati...

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Problems solved by technology

It avoids the problems of poor mechanical properties, single grading mechanism, and obvious defects in internal structure design of the current traditional man-made material structure.

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