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Title: On the tear resistance of skin

Abstract

Tear resistance is vitally important for the various functions of skin, especially protection from predatorial attack. Here, we mechanistically quantify the extreme tear resistance of skin and identify the underlying structural features, which lead to its sophisticated failure mechanisms. Here we explain why it is virtually impossible to propagate a tear in rabbit skin, chosen as a model material for the dermis of vertebrates. Finally, we express the deformation in terms of four mechanisms of collagen fibril activity in skin under tensile loading that virtually eliminate the possibility of tearing in pre-notched samples: fibril straightening, fibril reorientation towards the tensile direction, elastic stretching and interfibrillar sliding, all of which contribute to the redistribution of the stresses at the notch tip.

Authors:
 [1];  [1];  [2];  [2];  [2];  [3];  [1]
  1. Univ. of California, San Diego, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1256018
Grant/Contract Number:
AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES

Citation Formats

Yang, Wen, Sherman, Vincent R., Gludovatz, Bernd, Schaible, Eric, Stewart, Polite, Ritchie, Robert O., and Meyers, Marc A. On the tear resistance of skin. United States: N. p., 2015. Web. doi:10.1038/ncomms7649.
Yang, Wen, Sherman, Vincent R., Gludovatz, Bernd, Schaible, Eric, Stewart, Polite, Ritchie, Robert O., & Meyers, Marc A. On the tear resistance of skin. United States. doi:10.1038/ncomms7649.
Yang, Wen, Sherman, Vincent R., Gludovatz, Bernd, Schaible, Eric, Stewart, Polite, Ritchie, Robert O., and Meyers, Marc A. Fri . "On the tear resistance of skin". United States. doi:10.1038/ncomms7649. https://www.osti.gov/servlets/purl/1256018.
@article{osti_1256018,
title = {On the tear resistance of skin},
author = {Yang, Wen and Sherman, Vincent R. and Gludovatz, Bernd and Schaible, Eric and Stewart, Polite and Ritchie, Robert O. and Meyers, Marc A.},
abstractNote = {Tear resistance is vitally important for the various functions of skin, especially protection from predatorial attack. Here, we mechanistically quantify the extreme tear resistance of skin and identify the underlying structural features, which lead to its sophisticated failure mechanisms. Here we explain why it is virtually impossible to propagate a tear in rabbit skin, chosen as a model material for the dermis of vertebrates. Finally, we express the deformation in terms of four mechanisms of collagen fibril activity in skin under tensile loading that virtually eliminate the possibility of tearing in pre-notched samples: fibril straightening, fibril reorientation towards the tensile direction, elastic stretching and interfibrillar sliding, all of which contribute to the redistribution of the stresses at the notch tip.},
doi = {10.1038/ncomms7649},
journal = {Nature Communications},
number = ,
volume = 6,
place = {United States},
year = {Fri Mar 27 00:00:00 EDT 2015},
month = {Fri Mar 27 00:00:00 EDT 2015}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 32 works
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