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Deeper Understanding Of Spider Silk, Webs May Lead to New Building Designs

机译:对蜘蛛丝的深入了解,网络可能会导致新的建筑设计

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摘要

Engineers and materials scientists have long marveled at the design and durability of spider-webs, which pound for pound are stronger than steel. Now a team of researchers at the Massachusetts Institute of Technology (MIT) has found how spider silk responds to stress. By analyzing the complex hierarchical structure of spider silk and spiderwebs, the team discovered that the elasticity of the silk, long considered a weakness, actually makes webs robust. They also found that the overall design of a spider-web enhances its strength. Spider silk starts out soft but stiffens as it is pulled. As the amount of pressure increases, the silk stretches and then stiffens again as it nears its breaking point. This ability to stiffen is crucial to the way silk responds to damage and explains why damage to a spiderweb from daily use remains local and does not undermine the integrity of the web as a whole.
机译:工程师和材料科学家一直对蜘蛛网的设计和耐用性感到惊奇,因为蜘蛛网比钢的强度高。现在,麻省理工学院(MIT)的一组研究人员发现了蜘蛛丝如何应对压力。通过分析蜘蛛丝和蜘蛛网的复杂层次结构,研究小组发现,长久以来被认为是弱点的丝的弹性实际上使网变得坚固。他们还发现,蜘蛛网的整体设计可增强其强度。蜘蛛丝起初柔软,但随着拉动而变硬。随着压力的增加,丝绸会拉伸,然后在接近断裂点时再次变硬。这种变硬的能力对于丝绸应对损伤的方式至关重要,并解释了为什么日常使用对蜘蛛网的损害仍然是局部的,并且不会损害整个纤维网的完整性。

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  • 来源
    《Civil Engineering》 |2012年第3期|p.33|共1页
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  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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