A model is presented which can be used to explain the friction condition on the interface between the composites and the mold during sheet-like parts compression molding of fibre-reinforced thermoplastics. The composites is treated as an incompressible isotropic fluid. Circular hollow disk is compressed in order to derive the position of the neutral surface which can explain the interfacial friction from consideration of minimum energy dissipation. From the theory and the experiment, it is clear that there is slip on the mold surface. By using the nondimensional parameter which measures the ratio ofvicous to frictional resistance, the phenomenon of the friction can be well explained.
From H. Hojo 1 | E. G. Kim 1 | T. Onodera 1 | H. Yaguchi 1 | S. H. Kim 1 | M. Koshimoto 1
1Department of Mechanical Engineering II, Tohoku University, Sendai, Japan
Appeared in International Polymer Processing 1989/03, Page 179-182
Direct link: http://www.polymer-process.com/IPP890179
Position of Neutral Surface during Hollow Disk Compression Molding of Long Fibre-Reinforced Thermoplastics [470 KB]
Free access for subscribers. PPS-Members: For Access Password please contact your Society.
|© 2013 by Carl Hanser Verlag|