Imaging and mechanical characterization of different junctions in spider orb webs

摘要: Spider silk and spider orb webs are among the most studied biological materials structures owing to their outstanding mechanical properties. A key feature that contributes significantly robustness capability absorb high kinetic energy of is presence junctions connecting different threads. Surprisingly, in spite fundamental function, mechanics web have never been reported. Herein, through characterization imaging, we show for first time host two types junction, produced by glands, which morphology, load bearing capability. These differences can be explained view roles they play web, i.e. allowing a localized damage control or anchoring whole structure surrounding environment.