| CFRP拉挤工艺过程固化度数值模拟与实验 |
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| 引用本文： | 陈幸开,谢怀勤,曲艳双.CFRP拉挤工艺过程固化度数值模拟与实验[J].北京科技大学学报,2009,31(6). |
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| 作者姓名： | 陈幸开 谢怀勤 曲艳双 |
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| 作者单位： | 1. 哈尔滨工业大学材料科学与工程学院,哈尔滨,150001
2. 哈尔滨玻璃钢研究院,哈尔滨,150036 |
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| 基金项目： | 黑龙江省自然科学基金资助项目(No.E01-10) |
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| 摘 要： | 碳纤维增强塑料(CFRP)拉挤成型过程中固化度和温度变化为强耦合关系.通过差示扫描量热(DSC)实验计算得到模型所需的固化动力学参数,根据固化动力学和传热学理论建立了非稳态温度场与固化动力学数学模型,采用有限元与有限差分相结合的方法和ANSYS求解耦合场的间接耦合法对拉挤工艺不同工况下CFRP固化度进行数值模拟.采用特殊设计制作的铝毛细管封装的布拉格光栅光纤(FBG)传感器,屏蔽了荷载效应应变干扰,对CFRP温度场实时检测,从而计算得到实时固化度;同时采用索氏萃取实验测定CFRP制品固化度.结果表明,模拟与实验结果基本吻合.
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| 关 键 词： | 碳纤维增强塑料 拉挤工艺 固化度 非稳态温度场 布拉格光栅光纤 索氏萃取 |
Simulation and experiment of the degree of cure during CFRP pultrusion |
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| CHEN Xing-kai,XIE Huai-qin,QU Yan-shuang.Simulation and experiment of the degree of cure during CFRP pultrusion[J].Journal of University of Science and Technology Beijing,2009,31(6). |
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| Authors: | CHEN Xing-kai XIE Huai-qin QU Yan-shuang |
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| Abstract: | The degree of cure and temperature are coupled during the pultrusion of carbon fiber reinforced plastics(CFRP).The models of unsteady temperature field and curing were established according to the curing kinetics and heat transfer theory. Kinetic parameters needed for simulation were obtained from differential scanning calorimetry(DSC) experiment.The finite element method,finite different method and indirect decoupling method based on ANSYS were implemented to simulate degree-of-cure profiles in CFRP during... |
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| Keywords: | carbon fiber reinforced plastics pultrusion degree of cure unsteady temperature field fiber Bragg grating Sorbitic extraction |
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