A Sinusoidally-Architected Helicoidal Biocomposite

Nicholas A. Yaraghi; Nicolás Guarín-Zapata; Lessa K. Grunenfelder; Eric Hintsala; Sanjit Bhowmick; Jon M. Hiller; Mark Betts; Edward L. Principe; Jae-Young Jung; Leigh Sheppard; Richard Wuhrer; Joanna McKittrick; Pablo D. Zavattieri; David Kisailus

doi:10.1002/adma.201600786

A Sinusoidally-Architected Helicoidal Biocomposite

Materials Science 2016-06-08 v2

Authors: Nicholas A. Yaraghi , Nicolás Guarín-Zapata , Lessa K. Grunenfelder , Eric Hintsala , Sanjit Bhowmick , Jon M. Hiller , Mark Betts , Edward L. Principe , Jae-Young Jung , Leigh Sheppard , Richard Wuhrer , Joanna McKittrick , Pablo D. Zavattieri , David Kisailus

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Abstract

A fibrous herringbone-modified helicoidal architecture is identified within the exocuticle of an impact-resistant crustacean appendage. This previously unreported composite microstructure, which features highly textured apatite mineral templated by an alpha-chitin matrix, provides enhanced stress redistribution and energy absorption over the traditional helicoidal design under compressive loading. Nanoscale toughening mechanisms are also identified using high load nanoindentation and in-situ TEM picoindentation.

Keywords

silicon physics crystal structure and quasicrystals

Cite

@article{arxiv.1604.07798,
  title  = {A Sinusoidally-Architected Helicoidal Biocomposite},
  author = {Nicholas A. Yaraghi and Nicolás Guarín-Zapata and Lessa K. Grunenfelder and Eric Hintsala and Sanjit Bhowmick and Jon M. Hiller and Mark Betts and Edward L. Principe and Jae-Young Jung and Leigh Sheppard and Richard Wuhrer and Joanna McKittrick and Pablo D. Zavattieri and David Kisailus},
  journal= {arXiv preprint arXiv:1604.07798},
  year   = {2016}
}

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6 figures. Published in Advanced Materials 2016

A Sinusoidally-Architected Helicoidal Biocomposite

Abstract

Keywords

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