以S-2玻璃纤维/环氧648变厚度层板为研究对象,采用热压罐工艺成型,考察了不同铺层方式和阶梯宽度下缺陷的形成情况.研究结果表明,由于厚度梯度的存在,层板中容易产生纤维分布不均、富树脂、孔隙和分层缺陷,这与树脂的二维流动、纤维的滑移和结构的不对称性有关,铺层方式对各种缺陷影响显著.变厚度层板成型过程中倾角减小使得尺寸难以预测和控制,成型过程中应尽量避免树脂的流动.
参考文献
| [1] | 赵渠森.先进复合材料手册[M].北京:机械工业出版社,2003:747-748. |
| [2] | Hoa SV;Naji MI .Curing of thick angle-bend thermoset composite part: curing cycle effect on thickness variation and fiber volume fraction[J].Journal of Reinforced Plastics and Composites,1999(8):702-723. |
| [3] | Malak I. Naji;Suong V. Hoa .Curing of thick angle-bend thermoset composite part: curing process modification for uniform thickness and uniform fiber volume fraction distribution[J].Journal of Composite Materials,2000(20):1710-1755. |
| [4] | Hubert Pascal;Vaziri Reza;Poursartip Anoush .A two-dimensional flow model for the process simulation of complex shape composite laminates[J].Int Numerical Methods in Engineering,1999,44:1-26. |
| [5] | Hubert Pascal;Poursartip Anoush .A review of flow and compaction modeling relevant to thermoset matrix laminate processing[J].Journal of Reinforced Plastics and Composites,1998,17(04):286-318. |
| [6] | Pascal Hubert;Anoush Poursartip;Composites Group .Aspects of the Compaction of Composite Angle Laminates: An Experimental Investigation[J].Journal of Composite Materials,2001(1):2-26. |
| [7] | Min Li;Charles L. Tucker III .Modeling and simulation of two-dimensional consolidation for thermoset matrix composites[J].Composites, Part A. Applied science and manufacturing,2002(6):877-892. |
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