纤维复合材料
纖維複閤材料
섬유복합재료
FIBER COMPOSITES
2014年
3期
14-16
,共3页
平纹织物%单胞%渗透率%数值模拟
平紋織物%單胞%滲透率%數值模擬
평문직물%단포%삼투솔%수치모의
plain fabric%unit cell%permeability%numerical simulation
运用树脂在纤维束内和纤维束间的耦合流动模型，结合Darcy定律，建立平纹织物的单胞模型，模拟预测单胞Z方向的渗透率，并通过改变单胞厚度尺寸参数研究纤维体积分数与渗透率的关系。结果表明：单胞的渗透率随着纤维体积分数的增加而减小，模拟结果与Kozeny－Carman方程对比，二者偏差很小，且在纤维体积分数52．5％处重合，表明该计算方案是合理的。
運用樹脂在纖維束內和纖維束間的耦閤流動模型，結閤Darcy定律，建立平紋織物的單胞模型，模擬預測單胞Z方嚮的滲透率，併通過改變單胞厚度呎吋參數研究纖維體積分數與滲透率的關繫。結果錶明：單胞的滲透率隨著纖維體積分數的增加而減小，模擬結果與Kozeny－Carman方程對比，二者偏差很小，且在纖維體積分數52．5％處重閤，錶明該計算方案是閤理的。
운용수지재섬유속내화섬유속간적우합류동모형，결합Darcy정률，건립평문직물적단포모형，모의예측단포Z방향적삼투솔，병통과개변단포후도척촌삼수연구섬유체적분수여삼투솔적관계。결과표명：단포적삼투솔수착섬유체적분수적증가이감소，모의결과여Kozeny－Carman방정대비，이자편차흔소，차재섬유체적분수52．5％처중합，표명해계산방안시합리적。
Simulation resin flow behavior by coupling the inter-tow and intra-tow flows,combined with Darcy's law,a u-nit cell of the plain fabric was established.The permeability of unit cell was simulated on the Z directions,and changed the parameters of thickness of unit cell to study relationship between fiber volume fraction and permeability.The results show that permeability decreases with the increase of fiber volume fraction,the simulation results compared with Kozeny-Carman equation,the difference is very small,and in the volume fraction 52.5% overlap,indicates that the calculation program is reasonable.
