A Review of 3D-Printed Auxetic Honeycomb Structures
DOI:
https://doi.org/10.54097/eyg04704Keywords:
3D printing, Auxetic structures, Honeycomb structuresAbstract
Auxetic honeycomb structures, characterized by their unique lateral expansion behavior, have shown great potential in energy absorption and structural protection applications. With the rapid development of additive manufacturing technologies, the high-precision fabrication of complex honeycomb structures has become feasible, significantly promoting research in this field. This paper presents a comprehensive review of recent advances in 3D-printed auxetic honeycomb structures. First, the fundamental principles of additive manufacturing and its advantages in fabricating complex honeycomb geometries are introduced. Subsequently, the geometric configurations and deformation mechanisms of typical auxetic honeycomb structures are systematically summarized, with emphasis on dominant mechanisms such as cell rotation, bending, and hinging. On this basis, recent progress in structural design optimization, mechanical performance regulation, and engineering applications is reviewed. Finally, the existing challenges, including the lack of systematic design methodologies, unclear process–structure–property relationships, and insufficient understanding of in-service performance, are discussed, and future research directions are outlined. This review aims to provide a comprehensive reference for the design and application of 3D-printed auxetic honeycomb structures.
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