Model study on the strain and stress distributions in the vicinity of an arterial stenosis

Issue title: 25th Anniversary Volume

Article type: Research Article

Authors: Nakamura, Masahide | Sawada, Tadashi

Affiliations: Akita University, Mechanical Engineering Akita, Japan

Note: [] Accepted by: C.G. Caro

Abstract: By the evaluation of the strain and stress distributions in the vicinity of a stenosis, it is suggested that the bending moment generated by the axial force acting on a stenosis is one of the causes of the post-stenotic dilatation. The conditions which enhance this bending moment are investigated and it is expected that the present mechanism is specially effective for the artery where the ratio of wall thickness to radius is very small. Lastly, the concrete numerical value of this bending moment is evaluated and it is shown that the bending moment generated by this mechanism is large enough to cause the post-stenotic dilatation.

Keywords: post-stenotic dilatation, strain-stress analysis, shell theory

DOI: 10.3233/BIR-1988-25408

Journal: Biorheology, vol. 25, no. 4, pp. 685-695, 1988