负泊松比管状支架结构的压缩刚度特性分析

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关键词：管状支架；负泊松比结构；轴向压缩；径向压缩；压缩刚度中图分类号：TB34；TP391.73DOI：10.3969/j.issn.1004-132X.2026.03.003 开放科学（资源服务）标识码（OSID）：

Abstract： Negative Poisson ratio structures were widely used in engineering because of their unique structural properties， high energy absorption and good deformation adaptability. The performance optimization of tubular supports was studied with negative Poisson ratio structure in engineering applications. Combining structural design and mechanics analyses，the compressive performance of tubular supports was systematically investigated. Based on the unique inward shrinkage deformation characteristics of negative Poisson's ratio structures，four new tubular stent structures were designed and prepared. By analyzing the stress distribution and load displacement curve through physical compression test and numerical simulation，a multi-dimensional evaluation system was constructed including peak load，energy absorption and compression stiffness. The results show that the stabilitys of FB-H structure is the best under continuous radial pressure，and the compressive strength of FB-X structure and FB-S structure are increased by 42% and 123% ， respectively. Diferent structures show differences under axial loads. The FB-X and FB-S brackets have high rigidity and are suitable for scenarios requiring support stability. The FB-N and FB-H brackets are flexible and suitable for large deformation scenes.

Key words： tubular stent； negative Poisson ratio structure；axial compression；radial compression： compression stiffness

0 引言

负泊松比结构相较于传统结构，其独特的几何形状和力学性能使其在承受复杂载荷时表现出优异的稳定性和承载能力，广泛应用于土木工程[1]、航空航天[2]、医疗器械[3等领域。（剩余11728字）