2024-03-28T20:49:36Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00007477
2023-01-16T03:52:58Z
320:321:322
Effect of Stress Ratio on Growth Behavior of Mode II Interlaminar Fatigue Cracks in High Strength GFRP
高強度GFRPのモードII層間はく離疲労き裂進展におよぼす応力比の影響
松原, 剛
20982
MATSUBARA, Go
20983
尾野, 英夫
20984
ONO, Hideo
20985
田中, 啓介
20986
TANAKA, Keisuke
20987
Mode II
Fatigue
Delamination
GFRP
Stress Ratio
Energy Release Rate
Crack Propagation
Interlaminar Shear
Composite Material
The mode II fatigue crack growth behavior from delamination was investigated with UD laminates (made of unidirectional laminates) and C laminates (made of unidirectional laminates and cloth laminates) of high strengh glass fiber reinforced plastics (GFRP). Fatigue crack growth tests were carried out by end notched flexure speciments at the stress ratios R=0.3, 0.1, -0.5, and -1. In UD laminates, the theshold of energy release rate range, ⊿GⅡth, of fatigue crack growth was independent of the stress ratio. In C laminates, the ⊿GⅡth value at negative stress ratios was about four times of that at positive stress ratios. In C laminates, a fatigue crack propagated along the interface of the unidirectional laminate at positive stress ratios, while along the interface of the cloth cloth laminate at negative stress ratios. When the stress ratio was negative, the fracture surface of C laminates was rough because of the resin rich area of fabric crossing, and this roughness shielded the crack tip, restricting the shearing deformation near the crack tip. Thus the crack growth resistance of C laminates at negative stress ratios in much larger than that at positive stress ratios.
journal article
日本機械学会
2004-04
application/pdf
日本機械学會論文集 A編
692
70
580
587
http://hdl.handle.net/2237/9159
0387-5008
https://nagoya.repo.nii.ac.jp/record/7477/files/JsMecEngA_70-692-580.pdf
jpn
http://ci.nii.ac.jp/naid/110004998724/
日本機械学会
本文データは学協会の許諾に基づきCiNiiから複製したものである。