The internal structure and conformation of prepreg with respect to reliable automated processing
The internal structure and conformation of prepreg with respect to reliable automated processing
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预浸料的内部结构和构象与可靠的自动化加工有关
DOI：
10.1016/j.compositesa.2010.11.014
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发表时间：
2011
影响因子：
8.7
通讯作者：
K. Potter
中科院分区：
文献类型：
--
作者：
D. Lukaszewicz;K. Potter
复合胶带的自动化加工依赖于高质量的材料。高质量可以定义为严格的尺寸公差和材料性能的低变异性。在这里，我们研究了未固化预浸料带的孔隙率、树脂含量和表面粗糙度的变化，并讨论了自动化加工的影响。在未固化的磁带中观察到一个特征的空隙分布，这可以与最初的制造联系起来。树脂含量在空间上存在显著差异，可能对自动铺层产生不利影响。最后，研究表明，这两种预浸料都具有一定的表面粗糙度，这可能与铺层过程中的粘性和夹持空气量有关。
Automated processing of composite tape relies on high quality material. High quality can be defined as tight dimensional tolerances and low variability of the material properties. Here, we study the variability of voidage, resin content and surface roughness of uncured prepreg tapes and discuss the implications for automated processing. A characteristic voidage distribution in the uncured tapes is observed that can be linked to initial manufacture. Resin content significantly varies spatially and may affect automated layup detrimentally. Finally, it is shown that both prepregs have a characteristic surface roughness, which may be linked to tack and the amount of entrapped air during layup.