Carbon fibre reinforced plastics. Unidirectional laminates. Determination of the apparent interlaminar shear strength

1997 ◽  
Keyword(s):  
Shear Strength ◽  
Carbon Fibre ◽  
Interlaminar Shear Strength ◽  
Reinforced Plastics ◽  
Interlaminar Shear ◽  
Carbon Fibre Reinforced Plastics

The system of carbon fibre-reinforced plastics micro-tubes for self-healing of glass fibre-reinforced plastics laminates

2016 ◽  
Vol 51 (12) ◽  
pp. 1717-1727 ◽  
Author(s):  
Sergejs Vidinejevs ◽  
Andrey Aniskevich
Keyword(s):  
Shear Strength ◽  
Carbon Fibre ◽  
Symmetry Plane ◽  
Interlaminar Shear Strength ◽  
Self Healing ◽  
Reinforced Plastics ◽  
Static Indentation ◽  
Healing Agent ◽  
Interlaminar Shear ◽  
Carbon Fibre Reinforced Plastics

A system of pultruded carbon fibre-reinforced plastics micro-tubes is used for self-healing simulation in laminated polymer composite. The system consists of a package of micro-tubes, placed in the symmetry plane of the GFR/epoxy laminate stack. Healing agent is a mixture of the epoxy resin and hardener. The healing agent releases and penetrates into the cracks after the composite is damaged by the quasi-static indentation. The specimens are healed at 30℃ for 24 h. Rectangular specimens notched under ASTM D2733 have been subjected to tensile test to determine interlaminar shear strength. Shear strength of specimens has been compared in three states (virgin, damaged and healed) for various ways of healing. After the most effective self-healing, the interlaminar shear strength has been recovered to 70 ± 15% of those for virgin specimens that almost twice exceeds the residual strength of the damaged specimens.

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