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Determining the Compressive Behavior of an Ultra-Thin Elastoviscoplastic Membrane Used in Sealing a Microchannel Hemodialyser

[+] Author Affiliations
Patrick S. McNeff, Brian K. Paul

Oregon State University, Corvallis, OR

Paper No. ICNMM2015-48366, pp. V001T01A001; 7 pages
  • ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems
  • ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels
  • San Francisco, California, USA, July 6–9, 2015
  • Conference Sponsors: Heat Transfer Division, Fluids Engineering Division
  • ISBN: 978-0-7918-5687-1
  • Copyright © 2015 by ASME


In past efforts, the conditions were determined for the hermetic sealing of a microchannel hemodialyser produced by pressing a hot-embossed polycarbonate microchannel lamina containing sealing bosses, against a 25 μm thick elastoviscoplastic hemodialysis membrane. In this paper, a procedure is developed for quantifying the compressive mechanical behavior of the membrane during loading. An energy balance, of the work of clamping to the strain energy within the membrane, is used to derive a model for predicting the force required to seal the membrane. The force model is used to predict the force required to press a boss a certain distance into the membrane, providing validation of the procedure for measuring the compressive properties of ultra-thin elastoviscoplastic membranes.

Copyright © 2015 by ASME



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