The exoskeleton of insects detects strain and load via sensilla organs.

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“In their rigid state exoskeletons are stiff laminated composite structures made of chitin fibres embedded in a highly crossed matrix. The exoskeleton acts as a detector of displacement, strain or load via special organs called sensilla, which are partly intergraded into local sections of exoskeleton. These organs amplify the information for the main detector organ, which is connected to the nerve stem. The local information obtained is used to modify the exoskeleton by changing thickness, stiffness and fibre orientation depending on the situation.” (The University of Bath 2008)

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Biomimetics: Copying ideas from nature into engineering

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