JOM

, Volume 64, Issue 4, pp 475–485 | Cite as

Flexible Dermal Armor in Nature

  • Wen Yang
  • Irene H. Chen
  • Joanna Mckittrick
  • Marc A. Meyers
Article

Abstract

Many animals possess dermal armor, which acts primarily as protection against predators. We illustrate this through examples from both our research and the literature: alligator, fish (alligator gar, arapaima, and Senegal bichir), armadillo, leatherback turtle, and a lizard, the Gila monster. The dermal armor in these animals is flexible and has a hierarchical structure with collagen fibers joining mineralized units (scales, tiles, or plates). This combination significantly increases the strength and flexibility in comparison with a simple monolithic mineral composite or rigid dermal armor. This dermal armor is being studied for future bioinspired armor applications providing increased mobility.

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Copyright information

© TMS 2012

Authors and Affiliations

  • Wen Yang
    • 1
  • Irene H. Chen
    • 1
  • Joanna Mckittrick
    • 1
    • 2
  • Marc A. Meyers
    • 1
    • 2
  1. 1.Materials Science and Engineering ProgramUniversity of California, San DiegoLa JollaUSA
  2. 2.Department of Mechanical and Aerospace EngineeringUniversity of California, San DiegoLa JollaUSA

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