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Showing 1 to 6 of 6 for “"Center-Gated Disk"”.
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Improved Prediction of Glass Fiber Orientation in Basic Injection Molding Geometries
… and long glass fiber (LGF) orientation in a center-gated disk and end-gated plaque injection molding test geometry using a simulation method that has not been attempted previously. Previous work has used assumptions to simplify the fiber orientation geometry (assuming a thin cavity) or flow …
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Improvement in Orientation Predictions of High-Aspect Ratio Particles in Injection Mold Filling Simulations
… evolution of short glass fiber orientation in a center-gated disk was experimentally determined along the radial direction at three different heights representative of the shell, transition and core layers, respectively. Orientation data along the shell and transition layers in the lubrication …
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Microassembly technology for modular, polymer microfluidic devices
… variations of injection molded components. A center-gated disk with micro scale assembly features was replicated. Simulations using a commercial package (Moldflow) overestimated replication fidelity. Mold surface temperatures and injection speeds significantly affected the experimental …
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Fiber orientation in injection-molded composites: A comparison of theory and experiment
… weight percent of glass fibers. The parts are a center-gated disk and a film-gated strip. Orientation is measured from polished cross-sections and reported as a function of position, both across the thickness and in the flow direction. Both parts have a layered structure, with outer shell layers …
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Assessing an Orientation Model and Stress Tensor for Semi-Flexible Glass Fibers in Polypropylene Using a Sliding Plate Rheometer: for the Use of Simulating Processes
… Two fiber orientation models were investigated to predict the transient orientation of the long glass fiber systems explored. One model, the Folgar-Tucker model, has been particularly useful for predicting fiber orientation in short glass fiber systems and was used in this paper to assess …
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Modeling of Microstructures and Stiffness of Injection Molded Long Glass Fiber Reinforced Thermoplastics
… non-lubricated squeeze flow and injection molded center-gated disk, allows the simulated fiber re-orient rate to be dependent on the local flow-type. This empirical variable strain reduction factor might help to improve the fiber orientation predictions especially in complex flow, because it can …