Abstract
The objective of this investigation was to determine the notch-tip strain fields in Type-I collagen biomaterials. Experiments were performed in-situ in a fixture mounted on the stage of an optical stereozoom microscope with edgenotched Type-I collagen tensile specimens. Image markers were added around the notch, and a tensile strain was applied. High-resolution images were collected at different levels of far-field strain. Image analysis was performed to measure the displacements of individual surface markers. The resultant displacement fields were analyzed to yield in-plane surface strain profiles along trajectories perpendicular to the crack plane. The results revealed significant local strain amplifications near the notch tip of nearly twenty times. These results are discussed in light of existing constitutive models for crack-tip strain fields.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1279-1283 |
| Number of pages | 5 |
| Journal | Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques |
| Volume | 98 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 1 2007 |
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Keywords
- Crack-tip
- Mechanical strain
- Mechanobiology
- Notch
- Type-i collagen
ASJC Scopus subject areas
- Metals and Alloys
Cite this
Crack-tip strain fields in collagen biomaterials for skin tissue engineering. / Lee, Joshua T.; Wachsmann-Hogiu, Sebastian; Shaw, Michael C.
In: Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques, Vol. 98, No. 12, 01.12.2007, p. 1279-1283.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Crack-tip strain fields in collagen biomaterials for skin tissue engineering
AU - Lee, Joshua T.
AU - Wachsmann-Hogiu, Sebastian
AU - Shaw, Michael C.
PY - 2007/12/1
Y1 - 2007/12/1
N2 - The objective of this investigation was to determine the notch-tip strain fields in Type-I collagen biomaterials. Experiments were performed in-situ in a fixture mounted on the stage of an optical stereozoom microscope with edgenotched Type-I collagen tensile specimens. Image markers were added around the notch, and a tensile strain was applied. High-resolution images were collected at different levels of far-field strain. Image analysis was performed to measure the displacements of individual surface markers. The resultant displacement fields were analyzed to yield in-plane surface strain profiles along trajectories perpendicular to the crack plane. The results revealed significant local strain amplifications near the notch tip of nearly twenty times. These results are discussed in light of existing constitutive models for crack-tip strain fields.
AB - The objective of this investigation was to determine the notch-tip strain fields in Type-I collagen biomaterials. Experiments were performed in-situ in a fixture mounted on the stage of an optical stereozoom microscope with edgenotched Type-I collagen tensile specimens. Image markers were added around the notch, and a tensile strain was applied. High-resolution images were collected at different levels of far-field strain. Image analysis was performed to measure the displacements of individual surface markers. The resultant displacement fields were analyzed to yield in-plane surface strain profiles along trajectories perpendicular to the crack plane. The results revealed significant local strain amplifications near the notch tip of nearly twenty times. These results are discussed in light of existing constitutive models for crack-tip strain fields.
KW - Crack-tip
KW - Mechanical strain
KW - Mechanobiology
KW - Notch
KW - Type-i collagen
UR - http://www.scopus.com/inward/record.url?scp=85033555892&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85033555892&partnerID=8YFLogxK
U2 - 10.3139/146.101593
DO - 10.3139/146.101593
M3 - Article
AN - SCOPUS:38149066106
VL - 98
SP - 1279
EP - 1283
JO - International Journal of Materials Research
JF - International Journal of Materials Research
SN - 1862-5282
IS - 12
ER -