Residual stress and circumferential stress distribution in a finite element model of the arterial wall

Nooshin Haghighi Pour*, Mohammad Tafazzoli Shadpour, Albert Avolio

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

Stress distribution of the arterial wall is an important factor in biomechanics of arteries. It has been suggested that excessive stress leads to arterial degeneration and lesion formation. In addition to circumferential tensile stress caused by luminal pressure, arterial wall contains circumferential residual stress with compressive and tensile components with maximum values on intima and adventitia respectively. The compressive residual stress component compensates part of maximum tensile stress, and therefore decreases severity of tension on endothelial lining. If an arterial ring is cut in radial direction it opens. The degree of opening angle is a determinant of circumferential residual stress. In this investigation, Finite element modeling was used to evaluate circumferential residual stress in a typical model of cross section of human aorta with differing opening angle and Young's modulus of elasticity. Results show that residual stress values are influenced by structural and mechanical parameters. Elevation of the opening angle and stiffening of the arterial wall resulted in increase of residual stress level.

Original languageEnglish
Title of host publicationProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
Place of PublicationManchester, United Kingdom
PublisherASME
Pages535-541
Number of pages7
Volume2
ISBN (Electronic)0791837416
ISBN (Print)0791841731, 9780791841730, 079184174X
DOIs
Publication statusPublished - 2004
Externally publishedYes
EventProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis - 2004 - Manchester, United Kingdom
Duration: 19 Jul 200422 Jul 2004

Other

OtherProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis - 2004
CountryUnited Kingdom
CityManchester
Period19/07/0422/07/04

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  • Cite this

    Pour, N. H., Shadpour, M. T., & Avolio, A. (2004). Residual stress and circumferential stress distribution in a finite element model of the arterial wall. In Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004 (Vol. 2, pp. 535-541). [ESDA2004-58313] Manchester, United Kingdom: ASME. https://doi.org/10.1115/ESDA2004-58313