表面形态和内部结构对 Dinodon rufozonatum 蛇鳞摩擦学行为的影响

IF 3.4 3区 医学 Q1 ENGINEERING, MULTIDISCIPLINARY Biomimetics Pub Date : 2024-10-11 DOI:10.3390/biomimetics9100617
Ge Shi, Jinhao Wang, Yuehua Dong, Song Hu, Long Zheng, Luquan Ren
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引用次数: 0

摘要

蛇可以在陆地、湖泊和其他环境中自由移动。在移动过程中,鳞片与外部环境长期接触,为身体提供保护。在这项研究中,我们评估了 Dinodon rufozonatum 腹背鳞片的机械特性和划痕性能,Dinodon rufozonatum 是一种在潮湿和干燥条件下在陆地和溪流中移动的通食性物种。结果表明,干鳞片的弹性模量和硬度均大于湿鳞片。湿润条件下的平均鳞片摩擦系数(0.1588)比干燥条件下的(0.1453)大 9.3%。鳞片在干燥环境中表现出脆性破坏,而在潮湿环境中则表现出韧性破坏。这种适应机制使鳞片能够通过耗散能量和减少应力集中来保护身体,确保在陆地和水生环境中都能高效运动和经久耐用。了解这种生物材料如何适应环境变化,可以为仿生材料的开发提供启发。
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Effect of Surface Morphology and Internal Structure on the Tribological Behaviors of Snake Scales from Dinodon rufozonatum.

Snakes can move freely on land, in lakes, and in other environments. During movement, the scales are in long-term contact with the external environment, providing protection to the body. In this study, we evaluated the mechanical properties and scratching performance of the ventral and dorsal scales from Dinodon rufozonatum, a generalist species that moves on both land and in streams under wet and dry conditions. The results showed that the elastic modulus and hardness of the dry scales were greater than those of the wet scales. The average scale friction coefficient under wet conditions (0.1588) was 9.3% greater than that under dry conditions (0.1453). The scales exhibit brittle damage in dry environments, while in wet environments, ductile damage is observed. This adaptation mechanism allows the scales to protect the body by dissipating energy and reducing stress concentration, ensuring efficient locomotion and durability in both terrestrial and aquatic environments. Understanding how this biomaterial adapts to environmental changes can inspire the development of bionic materials.

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来源期刊
Biomimetics
Biomimetics Biochemistry, Genetics and Molecular Biology-Biotechnology
CiteScore
3.50
自引率
11.10%
发文量
189
审稿时长
11 weeks
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