Damage Resistance and Damage Tolerance Performance of Stitched Carbon Fiber /Foam Sandwich Composites

被引：0

作者：

Lai J. ^{[1
]}

Mo M. ^{[1
]}

Huang Z. ^{[2
]}

Wan Y. ^{[1
]}

He P. ^{[1
]}

机构：

[1] Polymer Processing Research Laboratory, School of Mechanical and Electric Engineering, Nanchang University, Nanchang

[2] Key Laboratory for Conveyance and Equipment of the Ministry of Education, East China Jiaotong University, Nanchang

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2022年 / 38卷 / 01期

关键词：

Damage resistance; Damage tolerance; Low-velocity impact; Stitched carbon fiber/ foam sandwich composites;

D O I：

10.16865/j.cnki.1000-7555.2022.0004

中图分类号：

学科分类号：

摘要：

The stitched and unstitched carbon fiber /foam sandwich composites were prepared by vacuum assisted resin transfer molding (VARTM) process, and low-velocity impact and post-impact compression experiments were car- ried out. The depth of the surface pits after impact was measured by a depth measuring instrument. The Origin software was used to fit the impact energy-pit depth curve that characterizes the damage resistance performance and the pit depth- residual compressive strength curve that characterizes the damage tolerance performance. Taking the unstitched compos- ites as comparison, it is found that stitching can effectively improve the damage resistance performance and damage tol- erance performance of carbon fiber /foam sandwich composites. There are inflection points on the damage resistance and damage tolerance curves of stitched and unstitched carbon fiber /foam sandwich composites, and the positions of the in- flection points of the damage resistance and damage tolerance are consistent. Before the inflection point, most damage of foam sandwich panels is matrix cracks and interlayer delamination damage. After the inflection point, fiber fracture damage occurs. © 2022, Editorial Board of Polymer Materials Science & Engineering. All right reserved.

引用

页码：123 / 130

页数：7

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