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Compression Responses of Preform in Vacuum Infusion Process 被引量:4
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作者 段跃新 谭朝元 +1 位作者 肇研 孙静 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2008年第4期370-377,共8页
The final thickness of a product after the vacuum infusion process (VIP), which is equal to the fiber volume fraction, depends in part on the compression responses of the preform because one of the mold faces is fle... The final thickness of a product after the vacuum infusion process (VIP), which is equal to the fiber volume fraction, depends in part on the compression responses of the preform because one of the mold faces is flexible in VIE This study aims at investigating the compression responses of different fabrics under dry or wet conditions. The main factors affecting the compression response under investigation include, the vacuum pressure, the loading and unloading repeatability on the preform, the layup design, the kinds of fabrics, and the resin viscosity. Besides, the effects of some internal factors such as nesting and elastic recovery of fibers, lubrication of resin, friction between fibers, and so on, are also studied. In the end, this article expatiates the meaning of the matching requirements of the permeability of the preform and that of the distribution medium. 展开更多
关键词 vacuum infusion process compression response fiber volume fraction
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Mold Filling Analysis in Vacuum Infusion Molding Process Based on a High-Permeable Medium 被引量:2
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作者 Yingdan ZHU, Hua TAN and Jihui WANGState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2003年第5期467-471,共5页
The objective of this paper is to understand the flow mechanism through visualization experiments and discuss theinfluence of process parameters on mold filling process. A 2D leakage flow model is developed to simulat... The objective of this paper is to understand the flow mechanism through visualization experiments and discuss theinfluence of process parameters on mold filling process. A 2D leakage flow model is developed to simulate the moldingprocess, and the simulation results show good agreement with experiments. 展开更多
关键词 Vacuum infusion molding process (VIMP) High-permeable medium Mold filling SIMULATION
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Vacuum Infusion Molding Process Part 1:VIMP Based on a High-Permeable Medium 被引量:1
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作者 祝颖丹 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2003年第3期72-75,共4页
The visualization experiments were carried out to investigate the permeability of the high permeable medium (HPM) and the roles of the peel ply and the HPM in the mold filling.The influence of process parameters on m... The visualization experiments were carried out to investigate the permeability of the high permeable medium (HPM) and the roles of the peel ply and the HPM in the mold filling.The influence of process parameters on mold filling is discussed.Furthermore,the whole vacuum infusion molding process (VIMP) procedure is introduced in detail taking the manufacture of a model boat for example. 展开更多
关键词 vacuum infusion molding process high permeable medium PERMEABILITY mold filling
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Vacuum Infusion Molding Process (Part 2 VIMP Based on Grooves)
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作者 祝颖丹 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2003年第4期68-71,共4页
The optimal parameters for flow grooves and supply grooves were determined by a series of experiments,and the influences of various molding conditions on the mold filling process were analyzed.Furthermore,the whole VI... The optimal parameters for flow grooves and supply grooves were determined by a series of experiments,and the influences of various molding conditions on the mold filling process were analyzed.Furthermore,the whole VIMP procedure based on grooves was introduced in detail taking the manufacture of a sandwich panel as an example. 展开更多
关键词 vacuum infusion molding process GROOVES mold filling
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Rheological Behaviors and Processing Windows of Low Viscosity Epoxy Resin for VIMP 被引量:2
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作者 刘卓峰 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2011年第5期931-934,共4页
The chemorheological behaviors of a low viscosity epoxy resin system (Huntsman 1564/3486) for vacuum infusion moulding process (VIMP) were studied with viscosity experiments.The dual-Arrhenius rheological model an... The chemorheological behaviors of a low viscosity epoxy resin system (Huntsman 1564/3486) for vacuum infusion moulding process (VIMP) were studied with viscosity experiments.The dual-Arrhenius rheological model and the engineering viscosity model were established and compared with the experimental data.The result showed that the viscosity in the earlier stage calculated by dual-Arrhenius model were smaller than the experimental data,while the data calculated by the engineering model were larger.Combining the two models together can predict the rheological behaviors of the resin system in a more credible manner.The processing windows of the resin system for VIMP were determined based on the two models.The optimum processing temperature is 30-45 ℃. 展开更多
关键词 vacuum infusion molding process(VIMP) epoxy resin rheological behaviors
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Flexural Properties of Grooved Perforation Sandwich Composites
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作者 方海 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2010年第4期583-587,共5页
Selecting H-60 PVC foam, four-axis E-glass non-woven fabric and vinyl resin, a type of innovative reinforced sandwich composite as grooved perforation sandwich (GPS) were fabricated by VIMP. The interfacial structur... Selecting H-60 PVC foam, four-axis E-glass non-woven fabric and vinyl resin, a type of innovative reinforced sandwich composite as grooved perforation sandwich (GPS) were fabricated by VIMP. The interfacial structure between the face and core of the sandwich is innovative because of the acuminate grooves in both sides of foam core and the holes perforated along core’s height. The fabrication results show that VIMP is a high-speed and cost-effective manufacturing method. The mechanical properties of the reinforced foam core were tested. The typical flexural failure modes of sandwich specimens were observed. The flexural stiffness and ultimate bearing capacity of sandwich were studied by ordinary sandwich beam theory and finite element method. 展开更多
关键词 vacuum infusion molding process (VIMP) grooved perforation sandwich (GPS) sandwich composite flexural properties
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