Results 111 to 120 of about 201 (142)
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Fatigue of Bolted Joints in SMC-R18 Sheet Molding Compound Composites
Journal of Composites Technology and Research, 1990Bolted joints in SMC-R18 sheet molding compound composites were studied with the goal of determining joint proportions that provide long fatigue lives. The joint parameters considered were the edge margin in terms of the (e/d) ratio (where e is the edge margin and d is the hole parameter), the lateral pitch in terms of the (w/d) ratio (where w is the ...
W Steven Johnson +4 more
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Reaction and thermal analysis for SMC (sheet molding compound) molding in complicated geometries
Polymer Engineering & Science, 1989AbstractA finite element technique has been developed for coupled reaction and heat transfer analysis in which mass diffusion is negligible. The temperature unknowns are located at nodal points, while the reaction variables (species concentrations, reaction rates) are at the Gauss points in each element. With a mechanistic kinetic model, the SMC (sheet
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AIP Conference Proceedings, 2021
Sheet Molding Compound (SMC) is specifically a fiber Reinforced plastic which has usually composed with glass fibers impregnated between two layers of thermosetting resin, fillers, additives, catalysts, inhibitors, impact modifiers and also internal mold release agent.
Morshed Mahmud +3 more
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Sheet Molding Compound (SMC) is specifically a fiber Reinforced plastic which has usually composed with glass fibers impregnated between two layers of thermosetting resin, fillers, additives, catalysts, inhibitors, impact modifiers and also internal mold release agent.
Morshed Mahmud +3 more
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Polymer Composites, 1995
AbstractA sequential design optimization scheme based on artificial neural networks (ANN) is proposed. It is a combination of an ANN model and a nonlinear programming algorithm. The proposed scheme is implemented with network training, optimization, and sheet molding compound (SMC) process simulation in a closed loop.
Jun‐Tien Twu, L. James Lee
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AbstractA sequential design optimization scheme based on artificial neural networks (ANN) is proposed. It is a combination of an ANN model and a nonlinear programming algorithm. The proposed scheme is implemented with network training, optimization, and sheet molding compound (SMC) process simulation in a closed loop.
Jun‐Tien Twu, L. James Lee
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Temperature increase of sheet molding compound (SMC‐R65) in flexural fatigue test
Polymer Composites, 1983AbstractThe temperature increase in flexural fatigue testing of sheet‐molding compound SMC‐R65 is investigated within a range of testing frequencies from 1000 cpm to 2200 cpm. Variation of the testing frequency affects the temperature increase and, based on 10 percent reduction in flexural stiffness, the effect of changing frequency on the fatigue ...
S. V. Hoa, Q. B. Nguyen
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Flexible Sheet Molding Compound (SMC) Using Aliphatic Polyester as Cross Linker
International Polymer Processing, 2003Abstract Thermoset resins are brittle and have a poor resistance to crack initiation and growth. This is attributed to their amorphous and highly cross-linked structure. In composite parts made from thermoset molding compositions such as Sheet Molding Compound (SMC) and Bulk Molding Compound (BMC), the initial stage of composite failure ...
M. Esfandeh, M. R. Ebrahimi
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Mathematical Modeling Of The Spiral Flow Tool For Sheet Molding Compound (SMC)
AIP Conference Proceedings, 2004A new design of the spiral flow tool has been used to gain further insight into the dynamic interactions of the composite material during the compression molding process. The geometry of the new design has been improved from its predecessor, and an addition of an extensive data acquisition system has been made to the new spiral flow tool.
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Determination of the orientation of short glass fibers in sheet molding compound (SMC)
Polymer Composites, 1987AbstractA computer based semiautomatic procedure has been developed to measure the fiber orientation on the surface of Sheet Molding Compound (SMC) plaques. The principal orientation direction and the Hermans' orientation descriptor were used to summarize the fiber orientation distribution.
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Dimensional stability and property gradients in thick sheet molding compound (SMC) sections
Polymer Engineering & Science, 1990AbstractThe dimensional stability of sample cylinders cured with sheet molding compound pastes was investigated. A significant amount of dimensional change was found for these samples when they were annealed. Furthermore, the amount of change varied with location from the center to the wall along the radial direction of the sample cylinder to form a ...
H. T. Kau, L. A. Petrusha
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An experimental study of the dynamics of the curing process of sheet molding compound (SMC) paste
Polymer Engineering & Science, 1989Abstract The dynamic curing behavior of sheet molding compound (SMC) has been investigated by using a cylindrical cure reactor. Both thermal and mechanical responses were determined for R‐25 SMC paste. The responses from this material were analyzed to determine the chemical and physical transformations that occur during the SMC ...
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