- Tytuł:
- A simple method of incorporating the effect of the Uniform Stress Hypothesis in arterial wall stress computations
- Autorzy:
-
Joldes, G. R.
Noble, C.
Polzer, S.
Taylor, Z. A.
Wittek, A.
Miller, K. - Powiązania:
- https://bibliotekanauki.pl/articles/306753.pdf
- Data publikacji:
- 2018
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
naprężenia własne
metoda elementów skończonych
ściana tętnicy
Uniform Stress Hypothesis
residual stress
finite element method
arterial wall stress - Opis:
- Residual stress has a great influence on the mechanical behaviour of arterial wall. Numerous research groups used the Uniform Stress Hypothesis to allow the inclusion of the effects of residual stress when computing stress distributions in the arterial wall. Nevertheless, the available methods used for this purpose are very expensive, due to their iterative nature. In this paper we present a new method for including the effects of residual stress on the computed stress distribution in the arterial wall. Methods: The new method using the Uniform Stress Hypothesis enables computing the effect of residual stress by averaging stresses across the thickness of the arterial wall. Results: Being a post-processing method for the computed stress distributions, the proposed method is computationally inexpensive and, thus, better suited for clinical applications than the previously used ones. Conclusions: The resulting stress distributions and values obtained using the proposed method based on the Uniform Stress Hypothesis are very close to the ones returned by an existing iterative method.
- Źródło:
-
Acta of Bioengineering and Biomechanics; 2018, 20, 3; 59-67
1509-409X
2450-6303 - Pojawia się w:
- Acta of Bioengineering and Biomechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł