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Title: An arbitrary Lagrangian–Eulerian finite element formulation for a poroelasticity problem stemming from mixture theory

Journal Article · · Computer Methods in Applied Mechanics and Engineering
 [1];  [2]
  1. Pennsylvania State Univ., University Park, PA (United States). Center for Neural Engineering
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Computational Simulation Group

In this paper, a finite element formulation is developed for a poroelastic medium consisting of an incompressible hyperelastic skeleton saturated by an incompressible fluid. The governing equations stem from mixture theory and the application is motivated by the study of interstitial fluid flow in brain tissue. The formulation is based on the adoption of an arbitrary Lagrangian–Eulerian (ALE) perspective. We focus on a flow regime in which inertia forces are negligible. Finally, the stability and convergence of the formulation is discussed, and numerical results demonstrate agreement with the theory.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Grant/Contract Number:
AC04-94AL85000; CMMI-1537008
OSTI ID:
1429778
Alternate ID(s):
OSTI ID: 1550052
Report Number(s):
SAND2017-4971J; 653205
Journal Information:
Computer Methods in Applied Mechanics and Engineering, Vol. 323; ISSN 0045-7825
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Cited By (3)

Functional hyperemia drives fluid exchange in the paravascular space posted_content November 2019
Functional hyperemia drives fluid exchange in the paravascular space preprint August 2020
Functional hyperemia drives fluid exchange in the paravascular space preprint August 2020

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