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首页> 外文期刊>Journal of nanomaterials >Effect of Microstructure of Spongy Bone in Different Parts of Woodpecker's Skull on Resistance to Impact Injury
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Effect of Microstructure of Spongy Bone in Different Parts of Woodpecker's Skull on Resistance to Impact Injury

机译:啄木鸟头骨不同部位的海绵骨微观结构对耐冲击性的影响

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摘要

Natural biological materials such as bone, teeth and nacre are nano-composites of protein and mineral frequently exhibit highly superior strength for self-assembly and nanofabrication. Mineral mass and microstructureanostructure of bone are susceptible to stimulation by mechanical loads, ensuring that its mechanical behavior and strength are adapted to environmental changes. Woodpeckers repeatedly drum tree trunks at a speed of 6-7ms~(-1) and acceleration of ~1000 g with no head injuries. The uneven distribution of spongy bone has been founded on woodpecker's skull in our previous study. More knowledge of the distribution of the shock-absorbing spongy bone could be incorporated into the design of new safety helmets, sports products, and other devices that need to be able to resist the impact. In this study, the effect of microstructure of spongy bone in different parts on woodpecker's skull compared with other birds was observed and analyzed. It was found that the unique coordinate ability of micro-parameters in different parts ofwoodpecker's skull could be one of themost important roles of its resistance to impact injury. Better understanding of the materials would provide new inspirations of shock-absorbing composite materials in engineering.
机译:天然生物材料(例如骨骼,牙齿和珍珠质)是蛋白质和矿物质的纳米复合材料,通常表现出极高的自组装和纳米加工强度。骨骼的矿物质质量和微结构/纳米结构易受机械负荷的刺激,从而确保其机械行为和强度适应环境变化。啄木鸟以6-7ms〜(-1)的速度和〜1000 g的加速度反复击鼓树干而无头部受伤。在我们先前的研究中,海绵状骨头的不均匀分布是在啄木鸟的头骨上发现的。有关减震海绵状骨分布的更多知识可以纳入新的安全帽,运动产品和其他需要能够抵抗撞击的设备的设计中。在这项研究中,观察和分析了与其他鸟类相比,不同部位的海绵骨对啄木鸟头骨的影响。发现啄木鸟头骨不同部位的微观参数具有独特的协调能力,可能是啄木鸟抗冲击伤害的最重要作用之一。更好地了解这些材料将为工程学中的减震复合材料提供新的灵感。

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