Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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Aging Characteristics of Glass Fabric/Phenolic Composites for Tilting Train Using Accelerated Aging Tester

가속노화시험장치를 적용한 틸팅열차용 유리섬유직물/페놀릭 복합재의 노화특성 평가

  • 윤성호 (금오공과대학교 기계공학부) ;
  • 남정표 (금오공과대학교 기계공학부) ;
  • 황영은 (금오공과대학교 기계공학부) ;
  • 이상진 ((주)한국화이바 철도차량사업부) ;
  • 신광복 (한밭대학교 기계공학부)
  • Published : 2005.04.01
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Abstract

Aging characteristics of glass fabric/phenolic composites for tilting train subjected to combined environmental aging factors were investigated. A 2.5KW accelerated aging tester with a xenon-arc lamp was used to provide environmental aging factors such as temperature, moisture, and ultraviolet. A series of aging tests were conducted up to 3000 hours and several types of specimens were prepared along the warp direction and the fill direction. Mechanical degradations for tensile, flexural, and shear properties were evaluated as a function of exposure times through a material testing system. Thermal analysis properties such as storage shear modulus, loss shear modulus, and tan 3 were measured through a dynamic mechanical analyzer. Finally exposed surfaces of the composites were examined using a scanning electron microscope. According to the experimental results, mechanical properties and thermal analysis properties of glass fabric/phenolic composites were found to be slightly degraded as a function of exposure times due to combined environmental effects.

Keywords

References

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