Optimization of a Flat Die Including Elongational Viscosity Effects
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Y. Sun
Abstract
A software package for optimization of polymer extrusion dies is developed. Die geometry is optimized such that a uniform velocity distribution is obtained at the die exit without excessively increasing the pressure drop in the die. The software uses the BFGS optimization algorithm, and employs the adjoint method to obtain the design sensitivities. The optimization software is successfully used to optimize the geometry of a flat die for polymer sheet extrusion such that a uniform velocity distribution is obtained at the die exit, without increasing the pressure drop in the die.
Acknowledgements
This work was supported by the National Science Foundation Grant DMI-0200091.
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You will find the article and additional material by entering the document number IIPP1905 on our website at www.polymer-process.com
References
1 Tadmor, Z., Klien, I.: Engineering Principles of Plasticating Extrusion. Van Nostrand Reinhold, New York (1970).Search in Google Scholar
2 Michaelli, W.: Extrusion Dies for Plastics and Rubber. Hanser, Munich (1992)Search in Google Scholar
3 Sun, Y., Gupta, M.: Int. Polym. Process. 18, p. 356 (2003)10.3139/217.1781Search in Google Scholar
4 Sun, Y., Gupta, M.: SPE ANTEC Tech. Papers 50, p. 3307 (2004)Search in Google Scholar
5 PELDOM software, Plastic Flow, LLC, 1206 Birch Street, Houghton, MI 49931 (www.plasticflow.com)Search in Google Scholar
6 Pichelin, E., Coupez, T.: Comput. Methods Appl. Mech. Eng. 163, p. 359 (1998)10.1016/S0045-7825(98)00024-3Search in Google Scholar
7 Babuska, I.: Numer. Math. 16, p. 322 (1971)10.1007/BF02165003Search in Google Scholar
8 Brezzi, F.: RAIRO, Anal. Numer. 8, p. 129 (1974)10.1051/m2an/197408R201291Search in Google Scholar
9 Bathe, K. J.: Finite Element Procedures. Prentice Hall, New Jersey (1998)Search in Google Scholar
10 Bird, R. B., Armstrong, R. C., Hassager, O.: Dynamics of Polymeric Liquids, Vol. 1,2. Wiley, New York (1987)Search in Google Scholar
11 Sarkar, D., Gupta, M.: J. Reinf. Plast. Comp. 20, p. 1473 (2001)10.1177/073168401772679101Search in Google Scholar
12 Beaupre, P., Gupta, M.: Int. Polym. Process. 17, p. 370 (2002)10.3139/217.1714Search in Google Scholar
13 Nocedal, J., Wright, S. J.: Numerical Optimization. Springer, New York (1999)10.1007/b98874Search in Google Scholar
14 Tortorelli, D. A., Michaleris, P.: Inverse Problems in Engineering 1, p. 71 (1994)10.1080/174159794088027573Search in Google Scholar
15 Gifford, W. A.: Poly. Eng. Sci. 41, p. 1886 (2001)10.1002/pen.10885Search in Google Scholar
© 2005 Hanser Publishers, Munich
Articles in the same Issue
- Contents
- Regular Contributed Articles
- An Improvement on Design of Sheet Extrusion Dies
- Organic-Inorganic Hybrid Material Synthesis by on Line Coupling Twin Screw Extruder with a Microwave Oven
- Water Penetration Stability in Water Assisted Injection Molded Symmetric Ribs
- A New Plasticating Model for Amorphous and Semi-crystalline Polymers in Single Screw Extruders
- Simultaneous Biaxial Stretching of Polypropylene Resins of Varying Tacticity
- Optimization of a Flat Die Including Elongational Viscosity Effects
- Experimental Study on Factors Influencing Throughput Rate and Process of Polymer-Mineral Filler Mixing in a Twin Screw Extruder
- 3D Finite Element Simulation of Processing of Generalized Newtonian Fluids in Counter-rotating and Tangential TSE and Die Combination
- Simulation of Heat Transfer in Laser Transmission Welding
- Influence of Power Law and Isothermal Simplification on the Accuracy in Single Screw Extrusion
- Melt Intercalation in Montmorillonite/Polystyrene Nanocomposites
- Experimental Investigation of the Effect of the Bubble Cone on the Cooling Jets used in the Blown Film Manufacturing Process
- Molding of Thin Sheets Using Impact Micro-injection Molding
- Rapid communications
- Ultrasonic Vibration Hot Embossing
- PPS news
- PPS news
- Seikei-kakou abstracts
- Seikei-kakou abstracts
Articles in the same Issue
- Contents
- Regular Contributed Articles
- An Improvement on Design of Sheet Extrusion Dies
- Organic-Inorganic Hybrid Material Synthesis by on Line Coupling Twin Screw Extruder with a Microwave Oven
- Water Penetration Stability in Water Assisted Injection Molded Symmetric Ribs
- A New Plasticating Model for Amorphous and Semi-crystalline Polymers in Single Screw Extruders
- Simultaneous Biaxial Stretching of Polypropylene Resins of Varying Tacticity
- Optimization of a Flat Die Including Elongational Viscosity Effects
- Experimental Study on Factors Influencing Throughput Rate and Process of Polymer-Mineral Filler Mixing in a Twin Screw Extruder
- 3D Finite Element Simulation of Processing of Generalized Newtonian Fluids in Counter-rotating and Tangential TSE and Die Combination
- Simulation of Heat Transfer in Laser Transmission Welding
- Influence of Power Law and Isothermal Simplification on the Accuracy in Single Screw Extrusion
- Melt Intercalation in Montmorillonite/Polystyrene Nanocomposites
- Experimental Investigation of the Effect of the Bubble Cone on the Cooling Jets used in the Blown Film Manufacturing Process
- Molding of Thin Sheets Using Impact Micro-injection Molding
- Rapid communications
- Ultrasonic Vibration Hot Embossing
- PPS news
- PPS news
- Seikei-kakou abstracts
- Seikei-kakou abstracts
