树脂基复合材料固化温度场工艺因素影响的数值模拟
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摘要
主要讨论辅助材料层和空气层流对复合材料固化温度场的影响。采用有限元方法求解温度-化学耦合场和流-固体传热场,具体数值分析了透气毡的厚度、密度,空气层流的厚度,以及风压对固化温度、固化度、固化速率的作用。结果表明,辅助材料层不论其密度还是厚度,都影响很小,而层流厚度及风压会引起固化温度滞后与超越,同时热压罐风压或者风速可以调制树脂的固化速率。
This paper mainly focuses on curing temperature field of composite materials with auxiliary material layer and forced convection. Using finite element method,the solutions of temperature-chemical coupling field and fluid-solid heat transfer field are obtained. Especially,the effects of the thickness,density of breath cloth,thickness and wind pressure of laminar air flow on curing temperature,curing degree and curing rate are analyzed numerically.The results show that the density and thickness of auxiliary material layer have little effect on curing field. The laminar thickness and the wind pressure will cause the curing temperature lag and overstep and the curing rate of the resin can be modulated by wind pressure or wind speed in autoclave.
This paper mainly focuses on curing temperature field of composite materials with auxiliary material layer and forced convection. Using finite element method,the solutions of temperature-chemical coupling field and fluid-solid heat transfer field are obtained. Especially,the effects of the thickness,density of breath cloth,thickness and wind pressure of laminar air flow on curing temperature,curing degree and curing rate are analyzed numerically.The results show that the density and thickness of auxiliary material layer have little effect on curing field. The laminar thickness and the wind pressure will cause the curing temperature lag and overstep and the curing rate of the resin can be modulated by wind pressure or wind speed in autoclave.
引文
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[7]刘哲.热固性树脂基复合材料固化变形数值模拟分析[D].哈尔滨:哈尔滨工业大学,2014(6):1.
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[13]阎勇,庄茁,周正刚,等.树脂比热容对复合材料固化过程数值模拟的影响[J].航空材料学报,2006(2):37-40.
[14]张纪奎,关志东,郦正能.热固性复合材料固化过程中温度场的三维有限元分析[J].复合材料学报,2006(2):175-179.
[15]赵倩,李敏,李艳霞,等.复合材料厚制件固化过程温度分布影响因素的模拟分析[C]//大型飞机关键技术高层论坛暨中国航空学会2007年学术年会论文集.中国航空学会,2007.
[16]李君,姚学锋,刘应华,等.复合材料固化过程中温度及应变场分布的解析[J].清华大学学报,2009(5):767-771.
[17]张纪奎,郦正能,关志东,等.热固性复合材料固化过程三维有限元模拟和变形预测[J].复合材料学报,2009,26(1):174-178.
[18]张纪奎,郦正能,关志东,等.热固性树脂基复合材料固化变形影响因素分析[J].复合材料学报,2009,26(1):179-184.
[19]王俊敏,郑志镇,陈荣创,等.树脂基复合材料固化过程固化度场和温度场的均匀性优化[J].工程塑料应用,2015(4):55-61.
[2]范玉青,张丽华.超大型复合材料基体部件应用技术的新进展[J].航空学报,2009,30(3):534-543.
[3]Qi Zhu,Philippe H Geubelle,Min Li,et al. Dimensional accuracy of thermoset composites:simulation of process-induced residual stresses[J]. Journal of Composite Materials,2001,35(24):2071-2205.
[4]贾丽杰.树脂基复合材料结构固化变形的研究进展[J].航空制造技术,2011(15):102-105.
[5]李建川,何凯,彭建,等.纤维增强热固性复合材料构件的固化变形研究进展[J].纤维复合材料,2013,3(1):45.
[6]王晓霞.热固性树脂基复合材料的固化变形数值模拟[D].济南:山东大学,2012(5):25.
[7]刘哲.热固性树脂基复合材料固化变形数值模拟分析[D].哈尔滨:哈尔滨工业大学,2014(6):1.
[8]Yi S,Hilton H H,Ahmad M F. A finite element approach for cure simulation of the rmasetting matrix composites[J]. Computers and Structures,1997,64(1-4):383-388.
[9]Oh J H,Lee D G. Cure cycle for thick glass/epoxy composite laminates[J]. Journal of composite materials,2002,36(1):19-45.
[10]Pantelelis N,Vrouvakis T,Spentzas K. Cure cycle design for composite materials using computer simulation and optimization tools[J]. Forschung Im Ingenieurwesen,2003,67(6):254-262.
[11] Cheung A,Yu Y,Pochiraju K. Threedimensional finite element simulation of curing of polymer composites[J]. Finite Elem Anal Des,2004,40:895-912.
[12]左德峰,朱金福,黄再兴.树脂基复合材料固化过程中温度场的数值模拟[J].南京航空航天大学学报,1999,31(6):701-795.
[13]阎勇,庄茁,周正刚,等.树脂比热容对复合材料固化过程数值模拟的影响[J].航空材料学报,2006(2):37-40.
[14]张纪奎,关志东,郦正能.热固性复合材料固化过程中温度场的三维有限元分析[J].复合材料学报,2006(2):175-179.
[15]赵倩,李敏,李艳霞,等.复合材料厚制件固化过程温度分布影响因素的模拟分析[C]//大型飞机关键技术高层论坛暨中国航空学会2007年学术年会论文集.中国航空学会,2007.
[16]李君,姚学锋,刘应华,等.复合材料固化过程中温度及应变场分布的解析[J].清华大学学报,2009(5):767-771.
[17]张纪奎,郦正能,关志东,等.热固性复合材料固化过程三维有限元模拟和变形预测[J].复合材料学报,2009,26(1):174-178.
[18]张纪奎,郦正能,关志东,等.热固性树脂基复合材料固化变形影响因素分析[J].复合材料学报,2009,26(1):179-184.
[19]王俊敏,郑志镇,陈荣创,等.树脂基复合材料固化过程固化度场和温度场的均匀性优化[J].工程塑料应用,2015(4):55-61.