Modeling and Finite Element Analysis of Flow in SMC Compression Molding
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S.-K. Youn
Abstract
A new flow model is developed for the analysis of compression molding of sheet molding compounds (SMC) and a penalty finite element formulation is presented to predict flow front progressions more accurately. In this model SMC is assumed nonisothermal fluid, which has different viscosities in extension and in shear. The flow is allowed to slip at the mold and is resisted by friction force which is proportional to the relative velocity at the mold surface. For the verification of the model, the press force and flow patterns are compared with those of experiments and available results by other works in this field. It is also demonstrated, using the computational procedure described and the proposed model, that optimal initial charge shapes for the filling can be effectively computed.
© 1995, Carl Hanser Verlag, Munich
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Sixteenth in a Series: Berstorff: Pioneer of Calenders and Screw Extruders
- Screw Extrusion/Continuous Mixing
- A Throughput Model for Grooved Bush Extruders
- Modeling of Polymer Devolatilization in a Multi-vent Screw Extruder
- Models of Flow and Experimental Studies on a Modular List/Buss Kokneter
- A Study of Distributive Mixing in Counterrotating Twin Screw Extruders
- Stress Controlled Simultaneous On-line Measurements of Viscosity, Flow Exponent, and Melt Index
- Film
- Microporous Film, Made from β-Crystalline Phase Polypropylene
- Analyses of Bowing Phenomena in Successive Transverse Stretching and Thermosetting Process for Biaxially Oriented Film
- Molding
- Comparative Wide-angle X-ray and Microscopical Studies on the Layered Structure in Injection Molded Polypropylene Disks
- Cooling Process Window Development for Injection Molding
- Modeling and Finite Element Analysis of Flow in SMC Compression Molding
- Reactive Processing
- Tool Heat Transfer Analysis in Resin Transfer Molding
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Sixteenth in a Series: Berstorff: Pioneer of Calenders and Screw Extruders
- Screw Extrusion/Continuous Mixing
- A Throughput Model for Grooved Bush Extruders
- Modeling of Polymer Devolatilization in a Multi-vent Screw Extruder
- Models of Flow and Experimental Studies on a Modular List/Buss Kokneter
- A Study of Distributive Mixing in Counterrotating Twin Screw Extruders
- Stress Controlled Simultaneous On-line Measurements of Viscosity, Flow Exponent, and Melt Index
- Film
- Microporous Film, Made from β-Crystalline Phase Polypropylene
- Analyses of Bowing Phenomena in Successive Transverse Stretching and Thermosetting Process for Biaxially Oriented Film
- Molding
- Comparative Wide-angle X-ray and Microscopical Studies on the Layered Structure in Injection Molded Polypropylene Disks
- Cooling Process Window Development for Injection Molding
- Modeling and Finite Element Analysis of Flow in SMC Compression Molding
- Reactive Processing
- Tool Heat Transfer Analysis in Resin Transfer Molding
