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A 1-D Infiltration/cure model was developed to simulate fabrication of advanced textile composites by the resin film infusion process. The simulation model relates the applied temperature and pressure processing cycles, along with the experimentally measured compaction and permeability characteristics of the fabric preforms, to the temperature distribution, the resin degree of cure and viscosity, and the Infiltration flow front position as a function of time. The model also predicts the final panel thickness, fiber volume fraction, and resin mass for full saturation as a function of compaction pressure. Composite panels were fabricated using the RTM (Resin Transfer Molding) film infusion technique from knitted, knitted/stitched, and 2-D woven carbon preforms and Hercules 3501-6 resin. Fabric composites were fabricated at different compaction pressures and temperature cycles to determine the effects of the processing on the properties. The composites were C-scanned and micrographed to determine the quality of each panel. Advanced cure cycles, developed from the RTM simulation model, were used to reduce the total cure cycle times by a factor of 3 and the total Infiltration times by a factor of 2.NTIS controlled terms: Composite materials - Composite structures - Epoxy resins - Fabrics - Forming techniques - Temperature distribution - Casting - Compacting - Infiltration - Permeability - Preforms - Simulation - Time [ Last edited by 科學(xué)狂牛 on 2010-12-15 at 14:28 ] |
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2樓2010-12-15 19:16:22
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The simulation model relates the applied temperature and pressure processing cycles, along with the experimentally measured compaction and permeability characteristics of the fabric preforms, to the temperature distribution, the resin degree of cure and viscosity, and the Infiltration flow front position as a function of time。 模擬模型與實(shí)際溫度和處理循環(huán)的壓力有關(guān)，并且與織物預(yù)成型的實(shí)驗(yàn)測(cè)量的凝結(jié)和滲透性能聯(lián)系起來(lái)，包括溫度分布，樹脂凝固與粘度，以及前端隨時(shí)間變化的滲透流等因素。 |
3樓2010-12-15 19:32:54
4樓2010-12-15 19:33:54
5樓2010-12-15 19:41:24
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Composite panels were fabricated using the RTM (Resin Transfer Molding) film infusion technique from knitted, knitted/stitched, and 2-D woven carbon preforms and Hercules 3501-6 resin. Fabric composites were fabricated at different compaction pressures and temperature cycles to determine the effects of the processing on the properties. The composites were C-scanned and micrographed to determine the quality of each panel. Advanced cure cycles, developed from the RTM simulation model, were used to reduce the total cure cycle times by a factor of 3 and the total Infiltration times by a factor of 2. 制備復(fù)合板使用針織，針織/縫合和RTM（樹脂傳遞成型）膜滲透技術(shù)的兩維機(jī)織碳纖維預(yù)成品及Hercules 3501-6樹脂。在不同壓制壓力和溫度循環(huán)時(shí)制作了織物復(fù)合材料，以確定對(duì)性能的處理效果。該復(fù)合材料進(jìn)行C-掃描和進(jìn)行顯微觀察以確定每個(gè)面板的質(zhì)量。從RTM仿真模型中得到優(yōu)異的凝固周期，被用來(lái)減少3倍的凝固周期，總滲透周期減少2倍。 |
6樓2010-12-15 19:54:17
科學(xué)狂牛(金幣+20, 翻譯EPI+1):非常感謝 2010-12-17 07:58:19
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Composite materials - Composite structures - Epoxy resins - Fabrics - Forming techniques - Temperature distribution - Casting - Compacting - Infiltration - Permeability - Preforms - Simulation - Time 復(fù)合材料 -復(fù)合材料結(jié)構(gòu) -環(huán)氧樹脂- 布料- 成型技術(shù)- 溫度分布- -鑄造-充填-滲透 -滲透性-預(yù)制- 仿真-時(shí)間 翻譯完畢！！ |
7樓2010-12-15 19:56:47
8樓2010-12-17 08:00:28
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