建立了描述双尺度单胞内树脂流动的数学模型,基于最小势能原理建立了织物单胞逼近真实的几何模型.研究了由纱线卷曲和相互挤压引起的微观渗透率分布的不均匀性及其在流动求解上的处理方法;基于有限差分法建立了树脂流动控制方程数值求解方法,并开发了相应软件包,求得了单胞内树脂流动压力和速度场,进而获得了渗透率预测值;通过与文献预测数据和实验值对比,证明了本文中预测模型和求解方法的正确性.
参考文献
| [1] | Verleye B,Croce R,Griebel M.Permeability of textile reinforcements:Simulation,influence of shear and validation[J].Composites Science and Technology,2008,68:2804-2810. |
| [2] | Verleye B,Lomov S V,Long A.Permeability prediction for the meso macro coupling in the simulation of the impregnation stage of Resin Transfer Moulding[J].Composites:Part A,2010,41:29-35. |
| [3] | Velov E B,Lomov S V.Modelling of permeability of textile reinforcements:Lattice Boltzmann method[J].Composites Science and Technology,2004,64:1069-1080. |
| [4] | Chen Zuorong,Ye Lin,Lu Meng.Permeability predictions for woven fabric preforms[J].Journal of Composite Materials,2010,44(13):1569-1586. |
| [5] | 吴晓青,李嘉禄,刘井红.缝合预制件在RTM中的渗透性[J].复合材料学报,2008,25(3):93-97.Wu Xiaoqing,Li Jialu,Liu Jinghong.Permeability of stitched preform in RTM[J].Acta Materiae Compositae Sinica,2008,25(3):93-97. |
| [6] | 简抗抗,张佐光,顾轶卓,孙志杰.不同纤维堆积状态下饱和渗透率实验研究[J].复合材料学报,2006,23(1):31-36.Jian Kangkang,Zhang Zuoguang,Gu Yizhuo,Sun Zhijie.Experimental research of saturated permeability with different fiber stacking states[J].Acta Materiae Compositae Sinica,2006,23(1):31-36. |
| [7] | 祝君军,段跃新,陈吉平,肇研.碳纤维经编织物定型参数及渗透特性[J].复合材料学报,2012,29(3):42-48.Zhu Junjun,Duan Yuexin,Chen Jiping,Zhao Yan.Packifier parameters and permeability characteristics of non-crimp stitched carbon fabric[J].Acta Materiae Compositae Sinica,2012,29(3):42-48. |
| [8] | 李敏,马晓星,王绍凯,张佐光.测试条件对集束纤维单向渗透率的影响[J].复合材料学报,2009,26(6):72-77.Li Min,Ma Xiaoxing,Wang Shaokai,Zhang Zuoguang.Permeability analysis of unidirectional fiber assembly under different testing conditions[J].Acta Materiae Compositae Sinica,2009,26(6):72-77. |
| [9] | 吴晓青,李嘉禄.基于单向流动研究三维编织预制件的渗透性[J].复合材料学报,2007,24(3):116-120.Wu Xiaoqing,Li Jialu.Permeability of the 3D braided preform based on the unidirectional flow measurement[J].Acta Materiae Compositae Sinica,2007,24(3):116-120. |
| [10] | 戴福洪,张博明,杜善义.用均匀化方法预报平纹织物的渗透率[J].复合材料学报,2009,26(2):90-93.Dai Fuhong,Zhang Boming,Du Shanyi.Permeability prediction of fabric preform using homogenization method[J].Acta Materiae Compositae Sinica,2009,26(2):90-93. |
| [11] | 倪爱清,王继辉,朱以文.复合材料液体模塑成型工艺中预成型体渗透率张量的数值预测[J].复合材料学报,2007,24(6):50-56.Ni Aiqing,Wang Jihui,Zhu Yiwen.Numerical prediction of saturated permeability tensor of a woven fabric for use in the fluid simulation of liquid composite molding[J].Acta Materiae Compositae Sinica,2007,24(6):50-56. |
| [12] | 吴炎,晏石林,谭华.具有空隙尺寸双尺度特性的纤维织物渗透虑率的预测[J].固体力学学报,2008,29(S1):80-84.Wu Yan,Yan Shilin,Tan Hua.Predication of permeability in a glass-fiber mat with dual-scale proe size[J].Chinese Journal of Solid Mechanics,2008,29(S1):80-84. |
| [13] | Heardman E,Lekakou C,Bader M G.In-plane permeability of sheared fabrics[J].Composites:Part A,2001,32:933-940. |
| [14] | Verleye B,Klitz M,Croce R,Roose D,Lomov S V,Verpoest I.Computation of the permeability of textiles with experimental validation for monofilament and non crimp fabrics[J].Computational Textiles,2007,55:93-109. |
| [15] | Song Y S,Chung K,Kang T J,Youn J R.Numerical prediction of permeability tensor for three dimensional circular braided preform by considering intra tow flow[J].Polymers and Polymer Composites,2005,13:323-334. |
| [16] | Gebart B A.Permeability of unidirectional reinforcements for RTM[J].Journal of Composite Materials,1992,26(8),1100-1133. |
| [17] | Patankar S V,Spalding D B.A calculation procedure for heat,mass and momentum transfer in three-dimensional parabolic flows[J].Int J Heat Mass Transfer,1972,15:1787-1806. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%