Fatigue behavior of surface cracked filament wound pipes with high tangential strength in corrosive environment
Küçük Resim Yok
Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCI LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this study is to examine the corrosion fatigue behavior of filament wound composite pipes with a surface crack under alternating internal pressure. The filament wound pipes are composed of multi-layered E-glass/epoxy composites with a [+/- 75 degrees](3) lay-up. The surface notches were formed on the outer surface of the pipe along the pipe axis. Dilute (0.6 M) HCl acid was applied to the surface crack region by a corrosion cell mounted on the outer surface of the pipe. The results of an experimental investigation into the corrosion fatigue tests are conducted to observe the oil leakage failure and the crack propagation of the composite pipe subjected internal pressure loading with an open ended condition in which the pipe can be deformed freely in the axial direction. The internal pressure was generated by conventional hydraulic oil for fatigue loading. The fatigue tests are performed at 0.42 Hz frequency and a stress ratio of R = 0.05 in accordance with ASTM D-2992 standard. The oil leakage from the crack tip was observed after the crack propagation reached to the critical stress intensity level. The fatigue crack propagation behavior with the environment exposure was strongly dependent on the crack parameters such as crack-depth ratio and crack-aspect ratio. The micro structure of the fracture surface with the effect of environment and the fatigue loading were also observed. (c) 2006 Elsevier Ltd. All rights reserved.
Açıklama
Joint 8th International Conference on Deformation and Fracture of Composites (DFC-8)/Experimental Techniques and Design in Composite Materials (ETDCM-7) -- APR 03-06, 2005 -- Univ Sheffield, Sheffield, ENGLAND
Anahtar Kelimeler
corrosion fatigue, filament winding, fracture, polymer-matrix composites (PMCs)
Kaynak
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
38
Sayı
4
