Effect of the interfacial nanostructure on the interlaminar fracture toughness and damage mechanisms of directly bonded carbon fiber reinforced thermoplastics and aluminum

被引：25

作者：

Ota, Hiroki ^{[1
]}

Jespersen, Kristine Munk ^{[2
,3
]}

Saito, Kei ^{[3
]}

Wada, Keita ^{[3
]}

Okamoto, Kazuki ^{[3
]}

Hosoi, Atsushi ^{[3
,4
]}

Kawada, Hiroyuki ^{[3
,4
]}

机构：

[1] Waseda Univ, Dept Mat Sci, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan

[2] Kanagawa Inst Ind Sci & Technol KISTEC, Takatsu ku, 3-2-1 Sakado, Tokyo 2130012, Japan

[3] Waseda Univ, Dept Appl Mech & Aerosp Engn, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan

[4] Waseda Univ, Kagami Mem Res Inst Mat Sci & Technol, Shinjuku Ku, 2-8-26 Nishiwaseda, Tokyo 1690051, Japan

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2020年 / 139卷

关键词：

Joints/joining; Fracture toughness; Nano-structures; Polymer-matrix composites (PMCs); ENERGY-RELEASE RATES; WELDED-JOINTS; ALLOY; MICROSTRUCTURE; STRENGTH; METAL; CFRP;

D O I：

10.1016/j.compositesa.2020.106101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbon fiber reinforced thermoplastics (CFRTPs) are becoming of interest to mass production industries. In this study, we investigated the characteristics of the direct bonding technique to join an aluminum alloy and a CFRTP laminate by fabricating a nanostructure on the aluminum alloy surface. The effect of the nanostructure on the fracture toughness and the damage mechanisms were investigated. The nanostructure improved the fracture toughness by about 2.6 times compared with that without the nanostructure. From observations of the fracture surface, ductile failure of the matrix owing to the nanostructure occurred, suggesting that plastic deformation improved the fracture toughness. From X-ray computed tomography observations, intralaminar failure caused by the nanostructure occurred, which appeared to be a factor for the improved fracture toughness.

引用

页数：10

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