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Multiscale structural gradients enhance the biomechanical functionality of the spider fang
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Multiscale structural gradients enhance the biomechanical functionality of the spider fang
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Journal Article
Multiscale structural gradients enhance the biomechanical functionality of the spider fang
2014
Overview
The spider fang is a natural injection needle, hierarchically built from a complex composite material comprising multiscale architectural gradients. Considering its biomechanical function, the spider fang has to sustain significant mechanical loads. Here we apply experiment-based structural modelling of the fang, followed by analytical mechanical description and Finite-Element simulations, the results of which indicate that the naturally evolved fang architecture results in highly adapted effective structural stiffness and damage resilience. The analysis methods and physical insights of this work are potentially important for investigating and understanding the architecture and structural motifs of sharp-edge biological elements such as stingers, teeth, claws and more.
Fangs are segments of the spider mouthparts, which are used to inject venom into prey and are required to sustain large mechanical loads. Here, the authors perform experiment-driven simulations, so to understand the correlation between the multiscale structural gradients and the biomechanical function of the fang.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Pub. Group
