Fatigue failure analysis of surface-cracked (+/- 45 degrees)(3) filament-wound GRP pipes under internal pressure
Küçük Resim Yok
Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SAGE PUBLICATIONS LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the fatigue behavior of (+/- 45 degrees)(3) filament-wound composite pipes with a surface crack under alternating internal pressure was investigated. Glass-reinforced plastic (GRP) pipes were made of E-glass/epoxy and tested in the open-ended condition. The pipes had a surface crack with a notch-aspect ratio of a/t = 0.2 and notch-to-thickness ratios of a/t = 0.25, 0.38, or 0.50 in the axial direction. Tests were carried out in accordance with ASTM D2992. This standard offers 25 cycles/min and a load ratio of R = 0.05. Tests were performed at three different load levels: 50%, 40%, and 30% of ultimate hoop stress. Whitening, leakage, and final failure of GRP pipes were observed, and fatigue test results were presented by means of S-N curves.
Açıklama
Anahtar Kelimeler
polymer-matrix composites (PMCs), fatigue, filament winding, surface crack, GRP pipe, internal pressure
Kaynak
JOURNAL OF COMPOSITE MATERIALS
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
46
Sayı
9
