Numerical modeling of crack propagation in Human Aorta

Raja Jayendiran, Annie Ruimi

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

1 Citation (Scopus)

Abstract

A 3D finite element model to predict the stress state and tear propagation on the human aorta is presented. The human aorta is modeled as a three-layered hyperelastic cylindrical shell with a radial tear in the intima layer and circumferential tear in the media layer. The ultimate strength and fracture energy required for the onset of crack propagation is obtained from the literature and used as an input to the simulations. The effect of depth and length of the tear on the critical pressure show that the critical pressure decreases when tear length and depth increase. The variation of von Mises stress on the aortic layers due to crack propagation is investigated. This study will provide additional insight into the mechanics of aortic dissection (AD) with the possibility of being used in designing new clinical protocols.

Original languageEnglish
Title of host publicationBiomedical and Biotechnology Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume3
ISBN (Electronic)9780791858363
DOIs
Publication statusPublished - 1 Jan 2017
EventASME 2017 International Mechanical Engineering Congress and Exposition, IMECE 2017 - Tampa, United States
Duration: 3 Nov 20179 Nov 2017

Other

OtherASME 2017 International Mechanical Engineering Congress and Exposition, IMECE 2017
CountryUnited States
CityTampa
Period3/11/179/11/17

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Jayendiran, R., & Ruimi, A. (2017). Numerical modeling of crack propagation in Human Aorta. In Biomedical and Biotechnology Engineering (Vol. 3). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2017-70376