Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)

The Korean Society for Composite Materials (한국복합재료학회)
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A Study on the Nonlinear Structural Behavior of a High-Pressure Filament Wound Composite Vessel

소형 복합재료 고압력 용기에 대한 비선형적 구조거동에 관한 연구

  • 황경정 (한국기계연구원 복합재료그룹) ;
  • 박지상 (한국기계연구원 복합재료그) ;
  • 정재한 (한국기계연구원 복합재료그) ;
  • 김태욱 (한국기계연구원 복합재료그룹)
  • Published : 2002.10.01
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Abstract

Structural behavior of high-pressure composite vessels of TYPE 3 (full-wrapped over a seamless aluminum liner) was studied through numerical simulations based on 3D nonlinear finite element method. Under high-pressure loading, a TYPE 3 composite vessel shows material nonlinearity due to elastic-plastic deformation of aluminum liner, and mismatch of deformation at the junction of cylinder and dome causes geometrical nonlinearity. Finite element modeling and analysis technique considering this nonlinearity was presented, and a pressure vessel of 6.8L of internal volume was analyzed. Design specification to satisfy requirements was determined based on analysis results.

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