TY - JOUR
T1 - Effect of the interfacial nanostructure on the interlaminar fracture toughness and damage mechanisms of directly bonded carbon fiber reinforced thermoplastics and aluminum
AU - Ota, Hiroki
AU - Jespersen, Kristine Munk
AU - Saito, Kei
AU - Wada, Keita
AU - Okamoto, Kazuki
AU - Hosoi, Atsushi
AU - Kawada, Hiroyuki
N1 - Funding Information:
This work was supported by the Kanagawa Institute of Industrial Science and Technology, JSPS KAKENHI (grant number 18H01342), and the Amada Foundation. The synchrotron radiation experiments were performed at the BL14B2 beamline of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institution (proposal number 2018B1789).
Funding Information:
This work was supported by the Kanagawa Institute of Industrial Science and Technology, JSPS KAKENHI (grant number 18H01342 ), and the Amada Foundation . The synchrotron radiation experiments were performed at the BL14B2 beamline of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institution (proposal number 2018B1789).
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/12
Y1 - 2020/12
N2 - 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.
AB - 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.
KW - A. Nano-structures
KW - A. Polymer-matrix composites (PMCs)
KW - B. Fracture toughness
KW - E. Joints/joining
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U2 - 10.1016/j.compositesa.2020.106101
DO - 10.1016/j.compositesa.2020.106101
M3 - Article
AN - SCOPUS:85090857484
SN - 1359-835X
VL - 139
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 106101
ER -