% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Krauss:93861,
author = {Krauss, S. and Fratzl, P. and Seto, J. and Currey, J. D.
and Estevez, J. A. and Funari, S. S. and Gupta, H. S. and
DESY},
title = {{I}nhomogeneous fibril stretching in antler starts after
macroscopic yielding: {I}ndication for a nanoscale
toughening mechanism},
journal = {Bone},
volume = {44},
issn = {8756-3282},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PHPPUBDB-11774},
pages = {1105-1110},
year = {2009},
note = {© Published by Elsevier Inc.; Post referee fulltext in
progress 2; Embargo 12 months from publication},
abstract = {Antler is a unique mineralized tissue, with extraordinary
toughness as well as an ability to annually regenerate
itself in its entirety. The high fracture resistance enables
it to fulfill its biological function as a weapon and
defensive guard during combats between deer stags in the
rutting season. However, very little is quantitatively
understood about the structural origin of the antler's high
toughness. We used a unique combination of time-resolved
synchrotron small angle X-ray diffraction together with
tensile testing of antler cortical tissue under
physiologically wet conditions. We measured the deformation
at the nanoscale from changes in the meridional diffraction
pattern during macroscopic stretch-to-failure tests. Our
results show that on average fibrils are strained only half
as much as the whole tissue and the fibril strain increases
linearly with tissue strain, both during elastic and
inelastic deformation. Most remarkably, following
macroscopic yielding we observe a straining of some fibrils
equal to the macroscopic tissue strain while others are
hardly stretched at all, indicating an inhomogeneous
fibrillar strain pattern at the nanoscale. This behavior is
unlike what occurs in plexiform bovine bone and may explain
the extreme toughness of antler compared to normal bone.},
keywords = {Animals / Antlers: physiology / Biomechanics / Bone and
Bones: physiology / Deer / Scattering, Small Angle / Stress,
Mechanical / Tensile Strength: physiology / X-Ray
Diffraction},
cin = {HASYLAB(-2012)},
ddc = {610},
cid = {$I:(DE-H253)HASYLAB_-2012_-20130307$},
pnm = {DORIS Beamline A2 (POF1-550)},
pid = {G:(DE-H253)POF1-A2-20130405},
experiment = {EXP:(DE-H253)D-A2-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:19236962},
UT = {WOS:000266347700012},
doi = {10.1016/j.bone.2009.02.009},
url = {https://bib-pubdb1.desy.de/record/93861},
}