利用屈服屈曲实现理想吸震器
Leveraging yield buckling to achieve ideal shock absorbers
AI总结：
针对现有结构无法同时满足理想吸震器全部性能要求的问题，提出基于屈服屈曲的力学超材料设计范式，可实现高刚度、高吸能、结构完整且可跨尺度应用的新一代吸震器。
摘要：
理想吸震器兼具高刚度与高能量吸收能力，受冲击后仍能保持结构完整性，且可规模化用于工业生产。目前尚无结构能同时满足所有这些标准。本文提出将一种特殊的塑性屈曲现象作为力学超材料的设计理念，这类超材料具备理想吸震器所需的全部要素。通过在塑性变形与屈曲之间取得平衡（我们称之为屈服屈曲），这些超材料呈现出连续的、最大程度耗散能量的坍塌特性，同时兼具高强度与结构完整性保留能力。与现有结构不同，该设计范式适用于任意尺度的所有弹塑性材料，因此将催生新一代吸震器，在众多高科技应用中提升安全性与可持续性。
英文摘要：
The ideal shock absorber combines high stiffness with high energy absorption whilst retaining structural integrity after impact and is scalable for industrial production. So far no structure meets all of these criteria. Here, we introduce a special occurrence of plastic buckling as a design concept for mechanical metamaterials that combine all the elements required of an ideal shock absorber. By striking a balance between plastic deformation and buckling, which we term yield buckling, these metamaterials exhibit sequential, maximally dissipative collapse combined with high strength and the preservation of structural integrity. Unlike existing structures, this design paradigm is applicable to all elastoplastic materials at any length scale and hence will lead to a new generation of shock absorbers with enhanced safety and sustainabilty in a myriad of high-tech applications.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
