Mullins Effect in Aorta and Limiting Extensibility Evolution

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F10%3A00167128" target="_blank" >RIV/68407700:21220/10:00167128 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Mullins Effect in Aorta and Limiting Extensibility Evolution
Original language description
Cyclic uniaxial tensile tests of human aorta were performed with an aim to obtain data describing the Mullins effect. Significant stress softening of aortic tissue and residual strains were confirmed. It was hypothesized that the stress softening observed within reloading of previously loaded tissue may be described by an evolution of material parameters. The model based on changes in limiting fiber extensibility, primarily represented by a collagen, was proposed. The arterial wall was assumed to be hyperelastic transversely isotropic material with different response under primary loading and unloading. Every straining level in the cyclic test had its own value of fiber extensibility. Explicit form of the relation between evolving limiting extensibility and maximum previously sustained deformation was proposed. The predictions of the model described above were in good agreement with observations.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BJ - Thermodynamics
OECD FORD branch
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Project
<a href="/en/project/GA106%2F08%2F0557" target="_blank" >GA106/08/0557: Material properties of veins and their remodelling</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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