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Shock wave induced damage in kidney tissue

Weinberg, K. and Ortiz, M. (2005) Shock wave induced damage in kidney tissue. Computational Materials Science, 32 (3-4). pp. 588-593. ISSN 0927-0256.

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In a common medical procedure known as shock-wave lithotripsy hypersonic waves are generated and focused at the kidney stone. These shock waves are thought to fragment the stone but also lead to injuries of the kidney tissue. To predict and estimate this damage we develop here a mechanical model for the response of soft tissue to the exposure of shock waves. The material model combines shear induced finite plasticity with irreversible volumetric expansion as induced, e.g., by cavitating bubbles. Dynamic effects like micro-inertia and rate sensitivity are included. The time-discretized porous-viscoplastic constitutive updates are described in a fully variational manner. A finite element analysis localizes the damage in the human kidney in good agreement to clinical and experimental studies.

Item Type:Article
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Ortiz, M.0000-0001-5877-4824
Additional Information:© 2004 Elsevier. Available online 13 November 2004.
Subject Keywords:Finite deformations; Soft tissue; Plasticity
Issue or Number:3-4
Classification Code:PACS 46.35.+z87.10.+e46.15.−x
Record Number:CaltechAUTHORS:20171128-111255148
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Official Citation:K. Weinberg, M. Ortiz, Shock wave induced damage in kidney tissue, In Computational Materials Science, Volume 32, Issues 3–4, 2005, Pages 588-593, ISSN 0927-0256, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83515
Deposited By: Lydia Suarez
Deposited On:29 Nov 2017 20:54
Last Modified:24 Feb 2020 10:30

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