2024-03-29T10:34:54Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00028706
2023-01-16T04:30:25Z
1942:1943:1944
Compressive fracture aspect of thick quasi-isotropic carbon fiber reinforced plastic laminates
Goto, Keita
94274
Arai, Masahiro
94275
Kano, Yuki
94276
Hara, Eiichi
94277
Ishikawa, Takashi
94278
Carbon fibres
Polymer-matrix composites (PMCs)
Fracture
Strength
High-speed images
The compressive fracture aspect for the thick quasi-isotropic carbon fiber reinforced plastic (CFRP) laminates was investigated using a high-speed camera to clarify the progress of the brooming fracture. The compressive fracture types of the laminates could be classified into two groups, i.e., the fractures initiating from the innermost 0° ply and those initiating from the fixed sections of the specimen. The standard deviation of the compressive strength for the innermost 0° ply-initiated fracture type was larger than that for the fixed-section fracture type, although the average compressive strengths for each fracture mode were similar. The initial fracture in the innermost 0° ply was caused by the microbuckling of the fibers. The numerical results demonstrated a considerable out-of-plane shear stress around the free edges of the specimen, especially for the innermost 0° ply. Such a shear stress is thought to cause the microbuckling at the innermost 0° ply, with the crack subsequently propagating toward the outer plies of the specimen. The compressive strength of the innermost 0° ply was an important factor affecting the fracture behavior of the thick quasi-isotropic CFRP laminates.
ファイル公開:2021-09-08
journal article
Elsevier
2019-09-08
application/pdf
Composites Science and Technology
181
107706
0266-3538
https://nagoya.repo.nii.ac.jp/record/28706/files/CSTE_2019_586_revised.pdf
eng
https://doi.org/10.1016/j.compscitech.2019.107706
© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/