FEM Study of the Strain Kinematics in the 3D Nanofibrous Structure Prepared by the Electrospinning Process
- 1 Institute for Nanomaterials, Advanced Technologies and Inovation, Technical University of Liberec, Liberec, Czech Republic
- 2 Department of Nonwovens, Technical University of Liberec, Liberec, Czech Republic
- 3 Department of Machine Elements and Mechanism, Technical University of Liberec, Liberec, Czech Republic
- 4 Department of Machine Elements and Mechanism, Technical University of Liberec, Liberec, Czech Republic
Abstract
Finite element model (FEM) was used for the study and description of the arising 3D nanofiber structure strain caused by the pressure of the flowing gas. Computer simulation using an adaptive networking through implicit FEM algorithm can be utilized for a significant improvement of the study of anisotropic strain in the deformed 3D nanostructure. The created model is based on the empirical Laplace-Poisson differential equation for the flow, where gas particles are moving with certain kinetic energy. The kinetic energy depends on the speed, time and temperature and affects the re sulting strain of 3D nanofiber structure. The simulation results were compared to the results obtained from the image analysis of real samples and showed that this FEM model can determine individual phases of structure strain. The com parison shows that the developed FEM model can be an important tool in the study of the strain in the arising 3D nano - fiber structure and it can provide valuable information for optimization of 3D nanofiber structure production by the electrospinning process.
- A. Formhals, “Process and Apparatus for Preparing Artificial Threads,” US patent No. 1.975.504, 1934.
- Y. Wang, et al., “Modeling and Fabrication of Electros pun Polymer Nanofibers with Tailored Architectures for Tissue Engineering Scaffold Applications,” IEEE International Conference on Computational Intelligence for Measurement Systems and Applications, CIMSA ‘09, 11-13 May 2009, pp. 226-229, doi:10.1109/CIMSA.2009.5069954
- X. Wang, H. Niu, X. Wang and T. Lin, “Needleless Elec trospinning of Uniform Nanofibers Using Spiral Coil Spinnerets,” Journal of Nanomaterials, Vol. 2012, 2012, Article ID: 785920. doi:10.1155/2012/785920
- A. Suzuki and K. Arino, “Polypropylene Nanofiber Sheets Prepared by CO2 Laser Supersonic Multi-Drawing,” European Polymer Journal, Vol. 48, No.7, 2012, pp. 1169-1176. doi:10.1016/j.eurpolymj.2012.04.003
- L. Dong, Y. Liu, R. Wang, W. M. Kang and B. W. Cheng, “Mathematical Model of Electric Field Distribution at a Critical State in Bubble Electrospinning, ” Journal of Fiber Bioengineering and Informatics, Vol. 3, No. 2, 2010, pp. 117-120. doi:10.3993/jfbi09201010
- M. Petru, O. Novak and P. Lepsik, “Increase of the Efficiency of the Production Lines for the Spinning of Inor ganic Nanofibers by the Electrostatic Field Intensity Op timization,” MM Science Journal, 2012, pp. 382-385. http://www.mmscience.eu/archives/MM_Science_201217.pdf
- D. Herak, A. Kabutey, M. Divisova and S. Simanjuntak, “Mathematical Model of the Mechanical Behavior of Jatropha curcas L. Seed under Compression Loading,” Bio systems Engineering, Vol. 114, No. 3, 2013, pp. 279-288. doi:10.1016/j.biosystemseng.2012.12.007
- M. Petru, O. Novak, D. Herak and S. Simanjuntak, “Finite Element Method Model of the Mechanical Behavior of Jatropha curcas L. Seed under Compression Loading,” Biosystems Engineering, Vol. 111, No. 4, 2012, pp. 412-421. doi:10.1016/j.biosystemseng.2012.01.008
- M. Petru, O. Novak and P. Lufinka, “Study and Analysis of Transmissibility of Car Seat with Non Polyurethane Material,” Proceedings of 50th Annual Conference on Experimental Stress Analysis, Tabor, 4-7 June 2012, pp. 321-326.
- D. Vejrych and L. Sevcik, “Assesing the Distribution of Deformation in Layers in 3D Nanostructures Spinning into Another Space,” Proceedings of the 5th International Mechanical Engineering Forum, Prague, 20-22 June 2012, pp. 962-970.
- M. Dekys and O. Broncek, “Measuring Strain of the Lattice Towers,” Communications: Scientific Letters of the University of Zilina, Vol. 14, No. 3, 2012, pp. 39-42. http://www.uniza.sk/komunikacie/archiv/2012/3/3_2012en.pdf