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Dynamic Finite Element Modelling of a Hydrogel-Based Micro-Valve With 2-Way Fluid Structure Interactions

[+] Author Affiliations
Philipp J. Mehner, Anthony Beck, Andreas Voigt, Uwe Marschner, Andreas Richter

Technische Universität Dresden, Dresden, Germany

Paper No. SMASIS2017-3859, pp. V002T03A025; 10 pages
doi:10.1115/SMASIS2017-3859
From:
  • ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 2: Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation; Structural Health Monitoring
  • Snowbird, Utah, USA, September 18–20, 2017
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5826-4
  • Copyright © 2017 by ASME

abstract

We propose a finite element model which describes the dynamic behavior of hydrogels for step-responses and quasi-static regimes. The material properties are implemented in a fluid structure interaction (FSI) model which simulates the swelling behavior of hydrogels within a micro-valve. The resulting volume change effects the fluid domain describing the mass-flow behavior of the micro-valve. Furthermore, the concept is implemented in a high-level circuit and flow chart model to efficiently predict the response behavior of hydrogel-based micro-valves.

With these tools a foundation is set to efficiently simulate microfluidic systems with the aim to develop a fully computer-aided design process. The presented method will help to better understand, predict and visualize the behavior of hydrogels and support the development of highly integrated hydrogel-based microfluidic circuits.

Copyright © 2017 by ASME

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