Structure and mechanical properties of crab exoskeletons.

  title={Structure and mechanical properties of crab exoskeletons.},
  author={Po-Yu Chen and Albert Yu-Min Lin and Joanna McKittrick and Marc A Meyers},
  journal={Acta biomaterialia},
  volume={4 3},
The structure and mechanical properties of the exoskeleton (cuticle) of the sheep crab (Loxorhynchus grandis) were investigated. The crab exoskeleton is a natural composite consisting of highly mineralized chitin-protein fibers arranged in a twisted plywood or Bouligand pattern. There is a high density of pore canal tubules in the direction normal to the surface. These tubules have a dual function: to transport ions and nutrition and to stitch the structure together. Tensile tests in the… CONTINUE READING