Ghent University Academic Bibliography

Advanced

Multi-layered bird beaks: a finite-element approach towards the role of keratin in stress dissipation

Joris Soons, Anthony Herrel, Annelies Genbrugge UGent, Dominique Adriaens UGent, Peter Aerts UGent and Joris Dirckx (2012) JOURNAL OF THE ROYAL SOCIETY INTERFACE. 9(73). p.1787-1796
abstract
Bird beaks are layered structures, which contain a bony core and an outer keratin layer. The elastic moduli of this bone and keratin were obtained in a previous study. However, the mechanical role and interaction of both materials in stress dissipation during seed crushing remain unknown. In this paper, a multi-layered finite-element (FE) model of the Java finch's upper beak (Padda oryzivora) is established. Validation measurements are conducted using in vivo bite forces and by comparing the displacements with those obtained by digital speckle pattern interferometry. Next, the Young modulus of bone and keratin in this FE model was optimized in order to obtain the smallest peak von Mises stress in the upper beak. To do so, we created a surrogate model, which also allows us to study the impact of changing material properties of both tissues on the peak stresses. The theoretically best values for both moduli in the Java finch are retrieved and correspond well with previous experimentally obtained values, suggesting that material properties are tuned to the mechanical demands imposed during seed crushing.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
finite-element model, beak, digital speckle pattern interferometry, bone, keratin, SPECKLE PATTERN INTERFEROMETRY, BITE FORCE, ALLIGATOR-MISSISSIPPIENSIS, FINCHES GEOSPIZA, DARWINS FINCHES, BONE, EVOLUTION, VALIDATION, STRAIN, HEAD
journal title
JOURNAL OF THE ROYAL SOCIETY INTERFACE
J. R. Soc. Interface
volume
9
issue
73
pages
1787 - 1796
Web of Science type
Article
Web of Science id
000305810200008
JCR category
MULTIDISCIPLINARY SCIENCES
JCR impact factor
4.907 (2012)
JCR rank
5/56 (2012)
JCR quartile
1 (2012)
ISSN
1742-5689
DOI
10.1098/rsif.2011.0910
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2125902
handle
http://hdl.handle.net/1854/LU-2125902
date created
2012-05-31 18:24:13
date last changed
2017-03-10 14:33:21
@article{2125902,
  abstract     = {Bird beaks are layered structures, which contain a bony core and an outer keratin layer. The elastic moduli of this bone and keratin were obtained in a previous study. However, the mechanical role and interaction of both materials in stress dissipation during seed crushing remain unknown. In this paper, a multi-layered finite-element (FE) model of the Java finch's upper beak (Padda oryzivora) is established. Validation measurements are conducted using in vivo bite forces and by comparing the displacements with those obtained by digital speckle pattern interferometry. Next, the Young modulus of bone and keratin in this FE model was optimized in order to obtain the smallest peak von Mises stress in the upper beak. To do so, we created a surrogate model, which also allows us to study the impact of changing material properties of both tissues on the peak stresses. The theoretically best values for both moduli in the Java finch are retrieved and correspond well with previous experimentally obtained values, suggesting that material properties are tuned to the mechanical demands imposed during seed crushing.},
  author       = {Soons, Joris and Herrel, Anthony and Genbrugge, Annelies and Adriaens, Dominique and Aerts, Peter and Dirckx, Joris},
  issn         = {1742-5689},
  journal      = {JOURNAL OF THE ROYAL SOCIETY INTERFACE},
  keyword      = {finite-element model,beak,digital speckle pattern interferometry,bone,keratin,SPECKLE PATTERN INTERFEROMETRY,BITE FORCE,ALLIGATOR-MISSISSIPPIENSIS,FINCHES GEOSPIZA,DARWINS FINCHES,BONE,EVOLUTION,VALIDATION,STRAIN,HEAD},
  language     = {eng},
  number       = {73},
  pages        = {1787--1796},
  title        = {Multi-layered bird beaks: a finite-element approach towards the role of keratin in stress dissipation},
  url          = {http://dx.doi.org/10.1098/rsif.2011.0910},
  volume       = {9},
  year         = {2012},
}

Chicago
Soons, Joris, Anthony Herrel, Annelies Genbrugge, Dominique Adriaens, Peter Aerts, and Joris Dirckx. 2012. “Multi-layered Bird Beaks: a Finite-element Approach Towards the Role of Keratin in Stress Dissipation.” Journal of the Royal Society Interface 9 (73): 1787–1796.
APA
Soons, Joris, Herrel, A., Genbrugge, A., Adriaens, D., Aerts, P., & Dirckx, J. (2012). Multi-layered bird beaks: a finite-element approach towards the role of keratin in stress dissipation. JOURNAL OF THE ROYAL SOCIETY INTERFACE, 9(73), 1787–1796.
Vancouver
1.
Soons J, Herrel A, Genbrugge A, Adriaens D, Aerts P, Dirckx J. Multi-layered bird beaks: a finite-element approach towards the role of keratin in stress dissipation. JOURNAL OF THE ROYAL SOCIETY INTERFACE. 2012;9(73):1787–96.
MLA
Soons, Joris, Anthony Herrel, Annelies Genbrugge, et al. “Multi-layered Bird Beaks: a Finite-element Approach Towards the Role of Keratin in Stress Dissipation.” JOURNAL OF THE ROYAL SOCIETY INTERFACE 9.73 (2012): 1787–1796. Print.