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A Study on Stress Corrosion Cracking of Fiber Reinforced Composite by Slow Strain Rate Test
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 Title & Authors
A Study on Stress Corrosion Cracking of Fiber Reinforced Composite by Slow Strain Rate Test
Lim, Jae-Gyu; Choi, Tae-Su;
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 Abstract
This paper was investigation of the stres corrosion cracking(SCC) mechanism and the properties of corrosion fracture surface of glass fiber reinforced plastics(GFRP) produced by hand lay up(HLU) method in synthetic sea water. Test material is GFRP, that was used vinylester type epoxy acrylate resin and an unsaturated polyester as the matrix and the chopped strand mat(CSM) type E-glss fiber as the reinforcement. The slow strain rate test(SSRT) was performed on dry, wet and saturated wet specimens in sea water. Here the pH concentration of synthetic sea water was 8.2 and the strain rate is 1 x () and test temperature ranges varied from to . It could be confirmed the fact that wet specimens tested at a particular test temperature ranges were appeared the eviences of SCC such as con-planar, mirror and hackle zone. Moreover, SCC of GFRP in sea water was characterised by falt fracture surfaces with only small amounts of fiber pull-out, in partial.
 Keywords
Slow Strain Rate Test;Glass Fiber Reinforced Plastics;GFRP;Stress Corrosion Cracking;Synthetic Sea Water;SCC Fracture Surface;
 Language
Korean
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