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首页> 外文期刊>Bioinspiration & biomimetics >Structure-function relationship of the foam-like pomelo peel (Citrus maxima) - An inspiration for the development of biomimetic damping materials with high energy dissipation
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Structure-function relationship of the foam-like pomelo peel (Citrus maxima) - An inspiration for the development of biomimetic damping materials with high energy dissipation

机译：泡沫状柚子皮的结构-功能关系-开发具有高能量耗散的仿生阻尼材料的灵感

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摘要

The mechanical properties of artificial foams are mainly determined by the choice of bulk materials and relative density. In natural foams, in contrast, variation to optimize properties is achieved by structural optimization rather than by conscious substitution of bulk materials. Pomelos (Citrus maxima) have a thick foam-like peel which is capable of dissipating considerable amounts of kinetic energy and thus this fruit represents an ideal role model for the development of biomimetic impact damping structures. This paper focuses on the analysis of the biomechanics of the pomelo peel and on its structure-function relationship. It deals with the determination of the onset strain of densification of this foam-like tissue and on how this property is influenced by the arrangement of vascular bundles. It was found here that the vascular bundles branch in a very regular manner - every 16.5% of the radial peel thickness - and that the surrounding peel tissue (pericarp) attains its exceptional thickness mainly by the expansion of existing interconnected cells causing an increasing volume of the intercellular space, rather than by cell division. These findings lead to the discussion of the pomelo peel as an inspiration for fibre-reinforced cast metallic foams with the capacity for excellent energy dissipation.
机译：人造泡沫的机械性能主要取决于松散材料的选择和相对密度。相反，在天然泡沫中，通过结构优化而不是通过有意识地代替散装材料来实现优化性能的变化。柚（Citrus maxima）具有厚实的泡沫状果皮，能够消散大量动能，因此，这种水果代表了仿生冲击阻尼结构开发的理想榜样。本文着重分析柚皮的生物力学及其结构-功能关系。它涉及这种泡沫状组织致密化的起始应变的确定，以及该特性如何受到血管束排列的影响。在这里发现，血管束以非常规则的方式分支-径向果皮厚度的每16.5％-并且周围的果皮组织（果皮）达到其异常的厚度，主要是由于现有相互连接的细胞的扩张导致体积增加。在细胞间空间，而不是通过细胞分裂。这些发现促使人们对柚子皮进行了讨论，该柚子皮是纤维增强的铸造金属泡沫具有出色的能量消散能力的灵感。

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