High damping and high stiffness CFRP composites with aramid non-woven fabric interlayers

Nannan Ni, Yuefang Wen, Delong He, Xiaosu Yi, Tao Zhang, Yahong Xu

Research output: Journal PublicationArticlepeer-review

46 Citations (Scopus)

Abstract

A new kind of structural damping composite was prepared by interleaving aramid non-woven fabrics (ANF) between the carbon fiber reinforced polymer laminates. The composite damping behaviors were experimentally investigated using single cantilever beam vibration test and dynamic mechanical analysis. Meanwhile, the influence of the ANF interlayers on the composite mechanical properties was investigated by measuring the interlaminar shear strength, flexural modulus, flexural strength, compression after impact (CAI), type I interlaminar fracture toughness (GIC) and type II interlaminar fracture toughness (GIIC). It was found that the interleaved ANF layers greatly improved the composite damping properties with an increase as high as 56.3% in the composite loss factor, with a negligible influence on their flexible strength and modulus and interlaminar shear strength. Most importantly, the CAI, GIC and GIIC tests indicated that the composite interlaminar fracture toughness was significantly enhanced by interleaving ANF. Finally, the ANF reinforcing mechanism inside composites was discussed.

Original languageEnglish
Pages (from-to)92-99
Number of pages8
JournalComposites Science and Technology
Volume117
DOIs
Publication statusPublished - 9 Sep 2015
Externally publishedYes

Keywords

  • Buckling
  • Complex moduli
  • Damage tolerance
  • Structural composites
  • Vibration

ASJC Scopus subject areas

  • Ceramics and Composites
  • Engineering (all)

Fingerprint

Dive into the research topics of 'High damping and high stiffness CFRP composites with aramid non-woven fabric interlayers'. Together they form a unique fingerprint.

Cite this