Axially aligned grooves can be formed on the hollow fiber membrane (HFM) inner surface under some controlled fabrication conditions during a typical immersion precipitation-based phase inversion fabrication process. Such grooved HFMs are finding promising medical applications for nerve repair and regeneration. For better nerve regeneration performance, the HFM groove geometry should be carefully controlled. Towards this goal, in this study the polyacrylonitrile (PAN) HFM groove number has been modeled based on the radially inward pressure-induced buckling mechanism. HFM has been modeled as a long six-layer fiber membrane, and the HFM inner skin layer has been treated as a thin-walled elastic cylindrical shell under the shrinkage-induced inward radial pressure. The groove number has been reasonably estimated based on the resulting buckling mode as compared with the experimental measurements.
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e-mail: yongh@clemson.edu
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June 2011
Research Papers
Investigation of Inner Surface Groove Formation Under Radially Inward Pressure During Immersion Precipitation-Based Hollow Fiber Membrane Fabrication
Jun Yin,
Jun Yin
Department of Mechanical Engineering,
Clemson University
, Clemson
, SC 29634
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Nicole Coutris,
Nicole Coutris
Department of Mechanical Engineering,
Clemson University
, Clemson
, SC 29634
Search for other works by this author on:
Yong Huang
Yong Huang
Department of Mechanical Engineering,
e-mail: yongh@clemson.edu
Clemson University
, Clemson
, SC 29634
Search for other works by this author on:
Jun Yin
Department of Mechanical Engineering,
Clemson University
, Clemson
, SC 29634
Nicole Coutris
Department of Mechanical Engineering,
Clemson University
, Clemson
, SC 29634
Yong Huang
Department of Mechanical Engineering,
Clemson University
, Clemson
, SC 29634e-mail: yongh@clemson.edu
J. Manuf. Sci. Eng. Jun 2011, 133(3): 031003 (8 pages)
Published Online: June 8, 2011
Article history
Received:
April 3, 2010
Revised:
March 19, 2011
Online:
June 8, 2011
Published:
June 8, 2011
Citation
Yin, J., Coutris, N., and Huang, Y. (June 8, 2011). "Investigation of Inner Surface Groove Formation Under Radially Inward Pressure During Immersion Precipitation-Based Hollow Fiber Membrane Fabrication." ASME. J. Manuf. Sci. Eng. June 2011; 133(3): 031003. https://doi.org/10.1115/1.4003950
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