ガラスマット強化プラスチック複合材のサンド***ージョン挙動

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Sand erosion tests were performed on the resin matrix and the composites reinforced with glass chopped strand mat. The experimental apparatus used was the sand blasting type erosion tester. Crashed glass beads of 350 pm in average diameter were used as impingement particles. Glass fiber contents of composites were changed from 20 to 40 wt%. Experimental results showed the damage of the composites was controlled by a brittle mode damage and this behavior was emphasized with an increase of glass fiber contents. The characteristic results were recognized in the effect of attack angle on the erosion rates. At higher angles of attack, the erosion rates were larger with increasing of glass fiber contents. But at lower angles, the erosion rates were smaller with increasing of glass fiber contents. The maximum erosion rates of the FRP was obtained at higher angle of attack in comparison with the matrix resin. By SEM observation of the eroded surface, the different erosion damage form between higher angles of attack and lower angles of attack was recognized. The eroded surface of the matrix part in the FRP was the same as that of the resin specimen without glass fiber. On the other hand, the erosion behavior of glass fiber in the FRP was largely affected by angle of attack. At lower angle of attack, especially, the angle between impact direction of particle and the direction of fiber orientation gave the serious effect on the behavior of the erosion damage.
日本複合材料学会の論文

ガラスマット強化プラスチック複合材のサンド***ージョン挙動

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