Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Assessment of Low Velocity Impact Damage of Filament Wound Composite Vessels with Surface Protective Materials

필라멘트 와인딩 복합재 압력용기의 저속충격손상 평가에 관한 연구

  • Lee, Jang-Ho (Researcher Center for Urban Wind Energy Systems, Kunsan National University) ;
  • Kang, Ki-Weon (Researcher Center for Urban Wind Energy Systems, Kunsan National University)
  • 이장호 (국립군산대학교 도시형풍력발전원천기술연구센터, 기계자동차공학부) ;
  • 강기원 (국립군산대학교 도시형풍력발전원천기술연구센터, 기계자동차공학부)
  • Received : 2010.06.23
  • Accepted : 2010.08.10
  • Published : 2010.08.31
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Abstract

This paper presents the impact damage behavior of filament wound composite vessels and the effect of surface protective materials on their impact resistance. Using an instrumented impact testing machine, a series of impact tests was performed on the base panels and the protected panels (panels with surface protective materials of rubber, kevlar/epoxy or glass/epoxy laminates) that were cut from the full scale vessel. And the impact damage parameters were used to identify the effect of protective materials on the damage resistance of composite vessels. Damage resistance of the composite vessels was considerably affected by the protective materials regardless of the shape of the indenters. Among the protective materials, glass/epoxy laminates was the most effective mean for improving the damage resistance of composite vessels.

본 논문은 필라멘트 와인딩 공법으로 제조된 복합재 압력용기의 충격손상 및 이에 대한 표면 보호재료의 영향을 평가한 것이다. 낙하식 충격시험기를 이용하여 기본 패널과 보호재료(고무, kevlar/epoxy 및 glass/epoxy)가 표면에 접착되어 있는 보호 패널에 대한 저속 충격시험을 실시하였다. 복합재 압력용기의 손상 저항성에 대한 표면 보호재료의 영향을 정량화하기 위하여 충격손상 파라미터를 도입하였다. 복합재 압력용기의 손상 저항성은 충격압자의 형상과 관계없이 표면 보호재료의 영향을 크게 받았으며 이러한 표면 보호재료중 glass/epoxy가 가장 큰 보호효과를 나타내었다.

Keywords

References

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