Effect of CNT film interleaves on the flexural properties and strength after impact of CFRP composites

被引：4

作者：

Li, Jianbin ^{[1
]}

Zhang, Zhifang ^{[1
]}

Fu, Jiyang ^{[1
]}

Liang, Zhihong ^{[1
]}

Hui, David ^{[2
]}

Ramakrishnan, Karthik Ram ^{[3
]}

机构：

[1] Guangzhou Univ, Res Ctr Wind Engn & Engn Vibrat, Guangzhou 510006, Peoples R China

[2] Univ New Orleans, Dept Mech Engn, New Orleans, LA USA

[3] Univ Bristol, Dept Aerosp Engn, Bristol BS8 1TR, England

来源：

NANOTECHNOLOGY REVIEWS | 2023年 / 12卷 / 01期

关键词：

fiber reinforced polymer composites; low velocity impact; carbon nanotubes film; residual flexural strength; FIBER-REINFORCED COMPOSITES; COMPRESSION-AFTER-IMPACT; ADHESIVELY BONDED JOINTS; POLYMER COMPOSITES; FUNCTIONALIZATION; BEHAVIOR; MODE;

D O I：

10.1515/ntrev-2023-0177

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The effects of embedding a midplane carbon nanotube (CNT) sheet on the impact damage resistance, tensile strength and propensity for interlaminar shear failure in a carbon fiber reinforced polymer matrix composite is experimentally evaluated. External and internal damage in the impacted composite laminates were characterized via surface profilometry and ultrasonic C-scan, respectively. The external dent areas and dent depths were greater for impacted laminates without the CNT sheet interleave, while the planar internal damage areas were greater for the impacted laminates with the CNT sheet. Destructive evaluation of the impacted laminates showed significant delaminations and matrix cracks in the vicinity of the midplane for the laminates with the CNT sheet, while damage was more distributed through the thickness in the non-CNT sheet ones. While a single CNT sheet interleave did not significantly affect the tensile strength of the laminate, residual strength after impact and the corresponding strain to failure was higher because of the CNT sheet interleave. The propensity for interlaminar shear failure was greater for laminates without the CNT sheet than those with the CNT sheet.

引用

页数：16

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