高压物理学报2026，Vol.40Issue(7)：45-57,13.DOI:10.11858/gywlxb.20261042
新型长载荷平台缓冲超材料的设计与性能研究
Novel Buffering Metamaterials with a Long Load Plateau:Design and Mechanical Characterization
摘要
Abstract
Metamaterials with both reversible deformation and a long load plateau meet the demand for cyclic buffering,offering great application prospects in protective engineering.However,current metamaterials generally suffer from low material utilization,which limits their load-bearing and energy absorption performance.To address these limitations,a novel buffering metamaterial with a long load plateau is proposed in this work.Composed of bilaterally symmetric double-arc structures and vertically symmetric curved plates,the metamaterial is capable of recoverable large deformation and overall cooperative load-bearing deformation,thereby improving material utilization and optimizing structural load capacity and energy absorption performance.Experimental tests and numerical simulations were conducted to validate the long load plateau and recoverable large deformation characteristics of the metamaterial.The influences of structural geometric parameters on its mechanical behavior were also systematically analyzed.The results indicate that the long load plateau can be effectively tuned by adjusting the thickness of lateral double arcs,the thickness of intermediate curved plates,and the central transverse span.Once the intermediate curved plates are removed,the long load plateau feature disappears,and the force-displacement curve presents an approximately linear variation.Finite element simulations at equal mass confirm that the proposed meta-material possesses better buffering performance than similar structures without a long load plateau,and the underlying buffering mechanism is clarified.The findings provide a novel design strategy for improving the performance of metamaterials with a long load plateau,and facilitate their application in protective engineering.关键词
超材料/结构设计/长载荷平台/可恢复大变形/多次缓冲Key words
metamaterial/structural design/long load plateau/recoverable large deformation/cyclic buffering分类
数理科学引用本文复制引用
尤艺璇,叶文康,张天朋,胡玲玲..新型长载荷平台缓冲超材料的设计与性能研究[J].高压物理学报,2026,40(7):45-57,13.基金项目
国家自然科学基金(12472400,12502466) （12472400,12502466）
深圳市科技计划项目(JCYJ20241202130001002) （JCYJ20241202130001002）
