Breaking analysis of artificial elastic tubes and human artery

Li, W.G., Hill, N.A. , Going, J. and Luo, X.Y. (2013) Breaking analysis of artificial elastic tubes and human artery. International Journal of Applied Mechanics, 5(3), p. 1350024. (doi:10.1142/S1758825113500245)

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Publisher's URL: http://dx.doi.org/10.1142/S1758825113500245

Abstract

Mechanical behaviors of artificial elastic tubes are studied to see if the fibre orientation in these vessels is optimal by comparison with those of human artery. By optimal we mean that the strengths of stretching and inflation in the vessels are equally good. Artificial thin film tubes have many applications in the food and fruit packing industry. In this paper, the wall of thin-film elastic tubes is considered as a fibre-reinforced membrane with two families of fibres and a uniform matrix material. Their mechanical properties are determined using a structure-based constitutive law. The constitutive parameters are inversely estimated from two separate uniaxial tensile tests in the circumferential and longitudinal directions. The inflation model for the elastic tubes and human common carotid artery are developed to investigate their breaking characteristics, and to explore the optimal fibre orientations. Results show that the fibre orientation has an important effect on the break behavior of the elastic tubes, and the tubes investigated are much weaker in the circumferential direction. On the other hand, the fibre orientation is close to the optimal state in the human common carotid artery.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Luo, Professor Xiaoyu and Hill, Professor Nicholas and Li, Dr Wenguang and Going, Dr James
Authors: Li, W.G., Hill, N.A., Going, J., and Luo, X.Y.
College/School:College of Medical Veterinary and Life Sciences > Institute of Cancer Sciences
College of Science and Engineering > School of Mathematics and Statistics > Mathematics
Journal Name:International Journal of Applied Mechanics
Journal Abbr.:Int. J. of Appl. Mech.
ISSN:1758-8251
ISSN (Online):1758-826X

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