Three dimensional flow simulation and structural analysis on stiffness of fiber reinforced anisotropic parts
Fiber orientation and micromechanics should be understood for exact prediction of physical properties and deformation of anisotropic composite parts which are generally treated as homogeneous materials for flow simulation and transversely isotropic materials for structural analyses. Fiber orientation has a significant effect on the mechanical properties and final shape of injection-molded parts. Fiber orientations in glass fiber (GF) reinforced PBT composites were observed by using a microtomography (Micro-CT) and the three dimensional CT results agreed with the prediction. Mechanical properties of the anisotropic composites were estimated by coupled three dimensional flow and structural analyses in which the micromechanics and the fiber orientation were considered spontaneously. In order to verify the coupled FE simulation results a theoretical model and a simple Representative Volume Element (RVE) model were employed. The coupled 3D analyses were in good agreement with the experimental data and the simple RVE model predicted higher stiffness than the experiments but lower stiffness than theoretical upper bound.
- Fischer, J. M., 2003, Handbook of molded part shrinkage and warpage, Norwich, NY.
- Foss, P. H., 2004, Coupling of flow simulation and structural analysis for glass-filled thermoplastics, Polym. Compos. 25, 343-354.
- Foster, R. J., P. J. Hine, and I. M. Ward, 2009, Characterisation and modeling of polypropylene/carbon nanofibre nanocomposites, Polymer 50, 4018-4027.
- Kim, S. Y., H. J. Oh, S. H. Kim, C. H. Kim, S. H. Lee, and J. R. Youn, 2008, Prediction of residual stress and viscoelastic deformation of film insert molded parts, Polym. Eng. Sci. 48, 1840-1848.
- Ding, M., A. Odgaard, and I. Hvid, 1999, Accuracy of cancellous bone volume fraction measured by micro-CT scanning, J. Biomech. 32, 323-326.
- Shen, H., S. Nutt, and D. Hull, 2004, Direct observation and measurement of fiber architecture in short fiber-polymer composite foam through micro-CT imaging, Compo. Sci. Tech. 64, 2113-2120.
- Gogos, C. G. and C-F. Huang, 1986, The process of cavity filling including the fountain flow in injection molding, Polym. Eng. Sci. 26, 1457-1466.
- Patcharaphun, S., B. Zhang, and G. Menning, 2007, Simulation of three-dimensional fiber orientation in weldline areas during push-pull-processing, J. Reinf. Plast. Comp. 26, 977-985.
- Folkes, M. J., 1982, Short fibre reinforced thermoplastics, Resear Studies Press.
- Van Krevelen, D. W., 1990, Properties of polymers, Elsevier, Amsterdam.
- Tandon, G. P. and G. J. Weng, 1984, The Effect of aspect ratio of inclusions on the elastic properties of unidirectionally aligned composites, Polym. Compos. 5, 327-333.
- Gusev, A., H. R. Lusti, and P. J. Hine, 2002, Stiffness and thermal expansion of short fiber composites with fully aligned fibers, Adv. Eng. Mater. 4, 927-931.
- Rosato, Donald V. and Dominick V. Rosato, 1995, Injection molding handbook 2nd ed.
- Kim, S. Y., S. H. Lee, S. J. Baek, and J. R. Youn, 2008, Thermoviscoelastic behavior of film-insert-molded parts prepared under various processing conditions, Macromol. Mater. Eng. 293, 969-978.
- Yoo, K. M., S. W. Lee, D. H. Yoon, Y. E. Cho, J. P. Yu, H. S. Park, and J. R. Youn, 2003, injection molding of vertebral fixed cage implant, Fiber. Polym. 4, 89-96.
- Hwang, C. J. and T. H. Kwon, 2002, A Full 3D Finite Element Analysis of the Powder Injection Molding Filling Process Including Slip Phenomena, Polym. Eng. Sci. 42, 33-50.
- Bernasconi, A., F. Cosmi, and D. Dreossi, 2008, Local anisotropy analysis of injection moulded fibre reinforced polymer composites, Compo. Sci. Tech. 68, 2574-2581.
- Folgar, F. P. and C. L. Tucker, 1984, Orientation behavior of fibers in concentrated suspensions, J. Reinf. Plast. Comp. 3, 98-119.
- Shen, Y. K., P. H. Yeh, and J. S. Wu, 2001, Numerical simulation for thin wall injection molding of fiber-reinforced thermoplastics, Int. Comm. Heat Mass Transfer 28, 1035-1042.
- Chang, R. Y. and W. H. Yang, 2001, Numerical simulation of mold filling in injection molding using a three-dimensional finite volume approach, Int. J. Numer. Meth. Fl. 37, 125-148.
- Zhou, H., T. Geng, and D. Li, 2005, Numerical filling simulation of injection molding based on 3D finite element model, J. Reinf. Plast. Comp. 24, 823-830.
- Barbero, E. J., 1998, Introduction to composite materials design, Taylor & Francis Group.
- Bowles, D. E. and S. S. Tompkins, 1989, Prediction of Coefficients of Thermal Expansion for Unidirectional Composites, J. Compos. Mater. 23, 370-388.
- Schapery, R. A., 1968, Thermal expansion coefficients of composite materials based on energy principles, J. Compos. Mater. 2, 380-404.
- Carpenter, B., S. Patil, R. Hoffman, B. Lilly and J. Castro, 2006, Effect of machine compliance on mold deflection during injection and packing of thermoplastic parts, Polym. Eng. Sci. 46, 844-852.
- Sun, C. T. and R. S. Vaidya, 1996, Prediction of composite properties from a representative volume element, Compo. Sci. Tech. 56, 171-179.
- Cox, H. L., 1952, The elasticity and strength of paper and other fibrous materials, British J. Appl. Phy. 3, 72-79.
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