Mechanical Resistance of the Largest Denticle on the Movable Claw of the Mud Crab
Tadanobu Inoue,
Yuka Hara,
Koji Nakazato
Abstract:Decapod crustaceans have tooth-like white denticles that are present only on the pinching side of the claws. In the mud crab, Scylla serrata, a huge denticle exists on the movable finger of the dominant claw. This is mainly used to crush the shells of the crab’s staple food. The local mechanical properties, hardness (HIT) and elastic modulus (Er), of the peak and valley areas of the largest denticle were examined via a nanoindentation test. The microstructure and elemental composition were characterized using … Show more
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