Effect of Counterpart Roughness on Abrasive Wear Characteristics of Side Plate of FRP Ship

FRP 선박 외판재의 연삭마모 특성에 관한 상대재 거칠기의 영향

  • Kim, Hyung-Jin (School of Mechanical and Aerospace Engineering/Institute of Marine Industry, Gyeongsang National University) ;
  • Koh, Sung-Wi (School of Mechanical Engineering Pukyons National University) ;
  • Kim, Jae-Dong (Institute of Marine Industry, Gyeongsang National University)
  • 김형진 (경상대학교 기계항공공학부/해양산업연구소) ;
  • 고성위 (부경대학교 기계공학부) ;
  • 김재동 (경상대학교 해양산업연구소)
  • Published : 2008.12.31

Abstract

The effect of counterpart roughness on abrasive wear characteristics of side plate materials of FRP ship, which were composed of glass fiber and unsaturated polyester resin composites, were investigated at ambient temperature by pin-an-disc friction test. The friction coefficient, wear rate and cumulative wear volume of these materials against SiC abrasive paper were determined experimentally. The wear rate of these materials decreased rapidly with sliding distance and then maintained a constant value. It was increased as counterpart roughness was rougher in a wear test. The cumulative wear volume tended to increase nonlinearly with sliding distance and depended on applied load and sliding speed for these composites. It could be verified by SEM photograph of fracture surface that major failure mechanisms were overlapping layers, microcutting, deformation of resin, delamination, and cracking.

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