Hysteresis Analysis on Origami Energy Dissipation Braces with Local Miura Units  

作　　者：Ya Zhou Xu Li Yuting Zhang Jian Feng Jianguo Cai 

机构地区：[1]Key Laboratory of C and PC Structures of Ministry of Education,National Prestress Engineering Research Center,Southeast University,Nanjing,211189,China [2]Shenzhen Research Institute,Southeast University,Shenzhen,518071,China

出　　处：《Acta Mechanica Solida Sinica》2024年第5期700-710,共11页固体力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.U1937202 and 52008064);the Innovation Support Plan-International Cooperation Project(BZ2022049);the Special Foundation for Central Guidance of Local Science and Technology of Shenzhen,China(Grant No.2021Szvup027);The first author acknowledges the scholarship(financial support)received from the China Scholarship Council(202106090085).

摘　　要：A local design scheme for origami energy dissipation braces was proposed by combining local Miura units at both ends and a straight segment in the middle.This design was implemented to address the issue of uneven axial stiffness observed in global origami braces.Globally and locally designed origami braces were simulated and compared under cyclic loading to validate the advantages of the proposed design scheme in terms of hysteretic properties.Additionally,an analysis was conducted on the designed braces with varying straight segment lengths,geometric angles,and origami plate thicknesses for comparison.Results indicate that the local design significantly increases the tensile bearing load,enhances the anti-buckling capability,and improves the energy dissipation performance compared to the global design.The positive impact on bearing capacity and energy dissipation performance was observed with increased straight segment length,geometric angles,and origami plate thickness.However,excessively large parameter values result in brace buckling under compression,diminishing energy dissipation capacity.

关 键 词：Origami brace Local design Energy dissipation Hysteretic property 

分 类 号：O34[理学—固体力学]