Impact characteristics of composite panel stitched by I-fiber process
Impact characteristics of composite panel stitched by I-fiber process
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DOI：
10.1016/j.compositesa.2019.105644
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发表时间：
2019-12-01
影响因子：
8.7
通讯作者：
Choi, Jin-Ho
中科院分区：
文献类型：
--
作者：
Kim, Cheol-Hwan;Sim, Hyung-Woo;Choi, Jin-Ho
在制造过程或操作过程中产生的冲击损坏是肉眼看不到的，很难修复，并降低了产品的使用寿命。通过加强z向强度可以减小损伤面积。Z向加固和缝合是典型的Z向加固方法。I纤维缝合工艺是一种非常有前途的技术，它结合了Z-钉扎和传统缝合工艺的优点。本文研制了工字纤维缝制的复合材料板材，并进行了冲击试验。测量了冲击后的损伤面积和抗压强度，并与未缝合的板材进行了比较。对一块叠层顺序为[45/0/-45/90](3S)的复合板进行了50×50 mm的加固，并对6种不同缝合密度和缝制方式的复合板进行了冲击试验和评价。
Impact damage generated during manufacturing processes or operations are undetectable by the naked eye, hard to repair, and decrease the lifetime of a product. The damage area can be reduced by reinforcing the z-directional strength. Z-pinning and stitching are typical z-directional reinforcement methods. The I-fiber stitching process is a very promising technology that combines the advantages of Z-pinning and a conventional stitching process. In this paper, composite panels stitched by the I-fiber process were manufactured, and impact tests were performed. The damage areas and compressive strengths after impact were measured and compared with an unstitched panel. A reinforcing area of 50 x 50 mm was reinforced in a composite panel having a stacking sequence of [45/0/ - 45/90](3s), and the impact tests of six composite panels with different stitching densities and patterns were tested and evaluated.