@article{oai:nagoya.repo.nii.ac.jp:00007456,
 author = {松原, 剛 and MATSUBARA, Go and 西川, 弘泰 and NISHIKAWA, Hiroyasu and 仁瓶, 寛太 and NIHEI, Kanta and 田中, 啓介 and TANAKA, Keisuke},
 issue = {700},
 journal = {日本機械学會論文集 A編},
 month = {Dec},
 note = {The effect of mode mixty on 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 strength glass fiber reinforced plastics (GFRP). Fatigue crack growth tests were carried out by mixed mode bending specimens at a stress ratio of R=0.1. In UD and C laminates, the crack propagation rate da/dN decreased as mixed mode ratio G_Ⅰmax/G_Tmax decreased when compared at the same total maximum energy release rate G_Tmax (=G_Ⅰmax +G_Ⅱmax). At a constant crack propagation rate under mixed mode loading, the driving force is expressed in terms of a linear combination of the pure mode Ⅰ G_Ⅰmax and the pure mode Ⅱ G_Ⅱmax. The G_Tmax in C laminates approached the G_Tmax in UD laminates as G_Ⅰmax/G_Tmax increased at the same crack propagation rate. In UD and C laminates, fiber bridging took place at G_Ⅰmax/G_Tmax=0.70 and the crack propagation rate was expressed by a power function of the maximum value, G_T tipmax, of the energy release rate at the crack tip. Fractographic observation UD and C laminates showed that the crack propagation path was on the surface of fibers at G_Ⅰmax/G_Tmax≦0.41 and some resin facture was observed at G_Ⅰmax/G_Tmax=0.70.},
 pages = {1733--1740},
 title = {高強度GFRP積層板の層間はく離疲労き裂進展におよぼす混合モード比の影響},
 volume = {70},
 year = {2004}
}