Study on inter-ply friction between woven and unidirectional prepregs and its effect on the composite forming process
Study on inter-ply friction between woven and unidirectional prepregs and its effect on the composite forming process
复制标题
机织预浸料与单向预浸料层间摩擦力及其对复合材料成型过程的影响研究
DOI：
10.1016/j.compstruct.2021.113888
复制
发表时间：
2021
影响因子：
6.3
通讯作者：
H. Kim
中科院分区：
文献类型：
--
作者：
Jeong Yeop Kim;Yeon;J. Baek;Won Yong Song;H. Kim
本文研究了编织和单向（UD）碳/环氧预浸料之间的层间摩擦行为，并探讨了其对成型过程的影响。根据预浸料的纤维方向、温度、滑动速度和压力求得摩擦系数(COF)。此外，还测量了剪切模量和弯曲刚度等成形性能。此外，混合编织/UD预浸料通过U型模具成型，成型过程通过商业软件PAM-FORM实现。然后，观察沿纤维方向的摩擦阻力的影响。结果发现，层间位移的差异受到纤维方向摩擦行为的显着影响，并且改变了成型过程后的剪切角分布和皱纹。
In this paper, the inter-ply frictional behavior between woven and unidirectional (UD) carbon/epoxy prepregs was studied and its effect on the forming process was investigated. The coefficient of friction (COF) was obtained according to the fiber direction of the prepreg, the temperature, the sliding speed and the pressure. Also, the forming properties such as shear modulus and bending stiffness were measured. In addition, hybrid woven/UD prepregs were formed by U-shape mold and the forming process was implemented by commercial software PAM-FORM. Then, the influence of the frictional resistance along the fiber direction was observed. As a result, it was found that the difference in the interlayer displacement was significantly affected by the frictional behavior according to the fiber direction, and it changed the shear angle distribution and wrinkles after the forming process.