塑料科技2025，Vol.53Issue(1)：16-21,6.DOI:10.15925/j.cnki.issn1005-3360.2025.01.003
多向拉胀折纸超材料的力学行为研究
Study on Mechanical Behaviours of Multi-directional Auxetic Origami Meta-materials
摘要
Abstract
Based on the idea of origami,mechanical origami meta-materials can realize the special mechanical behaviour at the apparent material level by designing ingenious characteristic structures.To further integrate the performance advantages of origami and auxetic meta-materials,a novel multi-directional auxetic origami meta-material(AOMM)inspired by the origami paradigm was designed.Based on the load-bearing deformation mechanism of the stationary structure,the negative Poisson's ratio effect of the multi-directional AOMM was analyzed,the theoretical models of relative density,folding efficiency,equivalent elastic constitutivity and load plateau were established,and the influence law of geometric parameters on the folding load was revealed by the surface response.The multi-directional AOMM specimen was 3D printed using thermoplastic polyurethane(TPU)as the base material,and the deformation,load bearing and energy absorption characteristics were analyzed by quasi-static compression experiment.The results show that TPU AOMM has a certain shape recovery ability,a negative Poisson's ratio effect and a stable energy absorption plateau,and the theoretical values of the threshold strain entering load plateau and the relative density are in good agreement with the experimental results.The present research results can provide a reference for the design and application of auxetic origami meta-materials.关键词
折纸超材料/拉胀超材料/负泊松比/等效力学/热塑性聚氨酯Key words
Origami meta-materials/Auxetic meta-materials/Negative poisson's ratio/Equivalent mechanics/Thermoplastic polyurethane分类
力学引用本文复制引用
邹凯,赵昌方,刘浩,刘洋佐,张克斌..多向拉胀折纸超材料的力学行为研究[J].塑料科技,2025,53(1):16-21,6.基金项目
国家自然科学基金(12402458) （12402458）
中国博士后科学基金(2024M751640) （2024M751640）
国家资助博士后研究人员计划(GZC20231315) （GZC20231315）
黑龙江省重点研发计划(2023ZX07D03) （2023ZX07D03）
