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Web absorbs impacts: spiders

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Spider web with dew drops / Mike Bitzenh.. / LicenseCC-by-nc-nd - Attribution Non-commercial No Derivatives

Webs of araneid spiders absorb impacts via microscopic engineering.

FUNCTION
Summary
"...spider webs owe their superior performance not just to the ultimate strength of the silk thread, but also from its nonlinear response to stress and its alignment within the geometry of the web. The silk nanocrystals are a stacked arrangement with each layer dialed in a different direction. They are held together by weak hydrogen bonds that act together in the stack to resist external force." (Zygote Quarterly)

Learn more about hierarchical structures in spider webs, as well as other organisms, in Tom McKeag's case study, "Little Things Multiply Up: Hierarchical Structures" on page 26 of Zygote Quarterly:
Excerpt
This strategy inspired the web furniture system sketched by Linda Dong, a sophomore industrial design student at Carnegie Mellon University. "How can we create furniture using the least amount of material and manufacturing? The web is inspired by the strong and lightweight nature of spider webs. Using only tension from string, these pieces can hold their structure easily without additional glue or fasteners." Her sketch won the AskNature Student Design Sketch Competition on the basis of clear rendering, attention to product lifecycle and sustainability, and inspiration from nature (see Gallery).

"Spiders provide their nets with many microscopic engineering inventions to prepare the structure for the impact force of their prey or other intruders; webs of araneid spiders have several structural devices designed to absorb the impact energy without breaking the entire structure." (Pallasmaa 1995:81)
About the inspiring organism
Med_spider_silk Araneae
Araneae

Learn more at EOL.org
Organism/taxonomy data provided by:
Species 2000 & ITIS Catalogue of Life: 2008 Annual Checklist


Bioinspired products and application ideas

Application Ideas: Materials, buildings, fabrics that can absorb impact, such as a fence between two highways can absorb the impact of a vehicle.

Industrial Sector(s) interested in this strategy: Manufacturing, construction, clothing, transportation



References
Pallasmaa, J. 1995. Animal architecture. Helsinki: Museum of Finnish Architecture. 126 p.
Learn More at Google Scholar Google Scholar  

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