Pecking Process (IMAGE)

Science China Press

Pecking Process

Caption

This is a schematic of the pecking process of a woodpecker and the Mises stress at different times: (a) and (e) are moments of readiness to peck; (b) and (d) are the moments of departure and return, respectively; (c) is the moment of collision; arrows on the beaks show velocity direction.

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©Science China Press

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