Avalanches and power law behavior in aortic dissection progression
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Date
2020-05-22, 2020
Authors
Zhang, Yanhang
Yu, Xunjie
Suki, Bela
Version
Published version
OA Version
Citation
Y. Zhang, X. Yu, B. Suki. 2020. "Avalanches and Power Law Behavior in Aortic Dissection Progression." Science Advances, Volume 6, Issue 21, https://doi.org/10.1126/sciadv.aaz1173
Abstract
Aortic dissection is a devastating cardiovascular disease known for its rapid propagation and high morbidity and mortality. The mechanisms underlying the propagation of aortic dissection are not well understood. Our study reports the discovery of avalanche-like failure of the aorta during dissection propagation that results from the local buildup of strain energy followed by a cascade failure of inhomogeneously distributed interlamellar collagen fibers. An innovative computational model was developed that successfully describes the failure mechanics of dissection propagation. Our study provides the first quantitative agreement between experiment and model prediction of the dissection propagation within the complex extracellular matrix (ECM). Our results may lead to the possibility of predicting such catastrophic events based on microscopic features of the ECM.
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Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).