scholarly journals Effect of water absorption on Mode I interlaminar fracture toughness of flax/basalt reinforced vinyl ester hybrid composites

2017 ◽  
Vol 168 ◽  
pp. 813-825 ◽  
Author(s):  
F.A. Almansour ◽  
H.N. Dhakal ◽  
Z.Y. Zhang
Keyword(s):  
Fracture Toughness ◽  
Water Absorption ◽  
Vinyl Ester ◽  
Hybrid Composites ◽  
Mode I ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture ◽  
Effect Of Water

scholarly journals The Effect of Water Absorption on Mode I Intterlaminar Fracture Toughness of Aramid Fibre Reinforced Plastics

1999 ◽  
Vol 8 (2) ◽  
pp. 096369359900800
Author(s):  
Hideki Sembokuya ◽  
Masaki Hojo ◽  
Kiyoshi Kemmochi
Keyword(s):  
Fracture Toughness ◽  
Water Absorption ◽  
Aramid Fibre ◽  
Mode I ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture ◽  
Reinforced Plastics ◽  
Effect Of Water

Mode I interlaminar fracture toughness tests were carried out for aramid fibre reinforced epoxy laminates. Specimens immersed in water were also tested for comparison. The effect of water absorption on interlaminar fracture toughness was small for the aramid/epoxy laminates used in this study.

Flexural Property and Mode I Interlaminar Fracture Toughness of Plain Woven Carbon Fiber Reinforced Plastics after Water Absorption and Freezing

2014 ◽  
Vol 627 ◽  
pp. 109-112
Author(s):  
Hideaki Katogi ◽  
Kenichi Takemura
Keyword(s):  
Fracture Toughness ◽  
Carbon Fiber ◽  
Water Absorption ◽  
Flexural Property ◽  
Mode I ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics

In this study, the effects of water absorption and freezing on flexural property and mode I interlaminar fracture toughness of Carbon Fiber Reinforced Plastics (CFRP) were investigated. Plain woven carbon fiber was used as reinforcement. Epoxy resin was used as matrix. Water absorption test was conducted at 90°C for 24, 100, 250 and 500 hrs. After water absorption, the specimens were kept under-15°C for 24 hrs. Static three point flexural and Double Cantilever Beam (DCB) tests were conducted after water absorption and freezing. As a result, flexural strength and mode I interlaminar fracture toughness of CFRP after water absorption and freezing decreased with an increase of immersion time. Flexural modulus of CFRP did not change after water absorption and freezing. And flexural strength and mode I interlaminar fracture toughness of frozen CFRP after water absorption were lower than those of water absorbed CFRP. From the observation using scanning electron microscope, it is understood that the water absorption and freezing affects the interfacial adhesion between fiber and matrix.

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