Effect of Fiber Orientation on Scratch Resistance in Unidirectional Carbon-Fiber-Reinforced Polymer Matrix Composites

Author:

Bora Mustafa Ozgur1,Çoban Onur2,Sinmazcelik Tamer2,Gunay Volkan3

Affiliation:

1. Mechanical Engineering Department, Kocaeli University Veziroğlu Campus, 41040, Izmit/Turkey,

2. Mechanical Engineering Department, Kocaeli University Veziroğlu Campus, 41040, Izmit/Turkey

3. TUBITAK-MAM, Materials Institute, P.O. Box 21, 41470, Gebze/Turkey

Abstract

Polymer composites have been widely used in industrial applications because of their high-specific strength and modulus. During their maintenance and service life small scratches can be formed on the surface of the composite material. These small scratches can result in crack initiation causing material failure and also some esthetic defects. When we consider that polymer composites may have various fiber orientations, it is possible to develop a remarkable increase in their scratch resistance. For this reason it is necessary to investigate the effect of fiber orientation on scratch resistance for polymer composites. In this study, scratch resistance of continuous carbon-fiber-reinforced polyetherimide composites were investigated as a function of fiber orientations by means of CSM microscratch tester machine. During the experiments the relation between the scratch resistance and operational parameters are determined as a function of scratch hardness, penetration depth, and coefficient of friction.

Publisher

SAGE Publications

Subject

Materials Chemistry,Polymers and Plastics,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites

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