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In situ tensile tes...
In situ tensile testing of human aortas by time-resolved small-angle X-ray scattering
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Schmid, F. (författare)
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Sommer, G. (författare)
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Rappolt, M. (författare)
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Schulze-Bauer, C. A. J. (författare)
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Regitnig, P. (författare)
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Holzapfel, Gerhard A. (författare)
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Laggner, P. (författare)
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Amenitsch, H. (författare)
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- 2005
- 2005
- Engelska.
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Ingår i: Journal of Synchrotron Radiation. - 0909-0495 .- 1600-5775. ; 12, s. 727-733
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The collagen diffraction patterns of human aortas under uniaxial tensile test conditions have been investigated by synchrotron small- angle X- ray scattering. Using a recently designed tensile testing device the orientation and d- spacing of the collagen fibers in the adventitial layer have been measured in situ with the macroscopic force and sample stretching under physiological conditions. The results show a direct relation between the orientation and extension of the collagen fibers on the nanoscopic level and the macroscopic stress and strain. This is attributed first to a straightening, second to a reorientation of the collagen fibers, and third to an uptake of the increasing loads by the collagen fibers.
Nyckelord
- human tissue
- biomechanics
- artery
- small-angle X-ray scattering
- collagen
- fiber diffraction
- tensile testing
- human brain arteries
- polarized-light microscopy
- collagen organization
- mechanical-properties
- tendon collagen
- synchrotron-radiation
- distending pressure
- fibrillar structure
- orientation
- diffraction
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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