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中文核心期刊

蜂窝结构仿生策略及承载吸能机制研究进展

Study Progress on Bionic Strategies and Load-bearing and Energy-absorbing Mechanisms of Honeycomb Structures

  • 摘要: 经过数亿年自然选择演化,生物系统形成了天然的先进结构和材料,其核心功能之一是保护其躯体及内部器官在复杂碰撞和冲击环境中免受损伤。源于生物系统的仿生设计策略为突破传统蜂窝结构的“强度-韧性”权衡困境提供了创新路径,解决因应力集中导致的承载力急剧下降问题,提高能量吸收平稳性。然而,仿生蜂窝结构在压缩载荷下表现出的多层级协同变形特征及其跨尺度耦合机制,对构建普适性力学理论模型提出了严峻挑战。系统解析典型生物原型的形态适应性原理、多模态强化机制及动态能量耗散规律,对于拓展仿生结构拓扑构型设计边界、建立仿生策略优化准则、揭示结构-功能映射关系具有重要理论价值与工程指导意义。本文系统梳理并归纳了仿生策略在蜂窝结构领域的五大创新方向:层级仿生策略、梯度仿生策略、仿形策略、仿生单元增强策略及仿功能性策略,为发展轻量化-高强韧-高能效一体化吸能结构提供了系统的理论框架与技术路线。

     

    Abstract: Through hundreds of millions of years of natural selection and evolution, biological systems have developed advanced natural structures and materials, with one of their core functions being to protect organisms and internal organs from damage in complex collision and impact environments. Bioinspired design strategies derived from biological systems provide innovative pathways to overcome the inherent "strength-toughness" trade-off dilemma in traditional honeycomb structures, resolve the sharp decline in load-bearing capacity caused by stress concentration, and enhance energy absorption stability. However, the multilevel cooperative deformation characteristics and cross-scale coupling mechanisms exhibited by bioinspired honeycomb structures under compressive loads pose significant challenges to constructing universal mechanical theoretical models. Systematic analysis of the morphological adaptability principles, multimodal strengthening mechanisms, and dynamic energy dissipation laws of typical biological prototypes holds critical theoretical value and engineering significance for expanding the design boundaries of bioinspired topological configurations, establishing optimization criteria for bionic strategies, and revealing structure-function mapping relationships. This paper comprehensively categorizes and summarizes five major innovative directions in bioinspired strategies for honeycomb structures: hierarchical bionic strategy, gradient bionic strategy, shape-matching strategy, bionic unit enhancement strategy, and function-oriented strategy. These strategies provide a systematic theoretical framework and technical roadmap for developing lightweight, high-strength-toughness, and high-energy-efficiency integrated energy-absorbing structures.

     

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