• Title, Summary, Keyword: Split Disk Test Dress Disk Test

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A Study on the Optimum Evaluation Method for Tensile NOL Ring Specimen Manufactured by Filament Winding Process (Filament winding에 의해 제조된 복합재료 NOL RING시험편의 최적 인장강도 평가법에 관한 연구)

  • 권순철;임철문;배창원;엄수현;김윤해
    • Proceedings of the Korean Society For Composite Materials Conference
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    • pp.203-207
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    • 2000
  • Filament Winding Process is a comparatively simple operation in which continuous reinforcements in the form of roving are wound over a rotating mandrel. And now well established as a versatile method for storage tanks and pipe for the chemical and other industries . In this study, tensile strength of a filament wound ring specimens were evaluated by split disk test fixture and dress disk test fixture , The results obtained from experiments were compared with the theoretical values obtained by the rule of mixtures. And the purpose of this paper is the suggestion of an appropriate test method for the evaluation of tensile properties of filament wound structures .The tensile strength of a ring specimen tested by the dress disk test showed better agreement with the theoretical values than of a ring specimen tested by the split disk test because the stress concentration in edges of a split disk test fixture is more severe than that of dress disk test fixture. The results showed that the tensile strength of a ring specimen was influenced by the geometry of test fixture, the continuity of fibers, fiber-tension, fiber-end and stress concentration in specimen.

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A Study on the Evaluation Method for Tensile Ring Specimen Manufactured by Filament Winding Process (필라멘트 와인딩 공법으로 제조된 링 시험편의 인장강도 평가법에 관한 연구)

  • 배창원;권순철;임철문;엄수현;김윤해
    • Proceedings of the Korean Society of Marine Engineers Conference
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    • pp.15-20
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    • 2000
  • Filament winding process is a comparatively simple operation in which continuous reinforcements in the form of roving are wound over a rotating mandrel. And it is now well established as a versatile method for storage tanks and pipe for the chemical and other industries. In this study, tensile strength of a filament wound ring specimens were evaluated by split disk test fixture and dress disk test fixture. The results obtained from experiments were compared with the theoretical values obtained by the rule of mixtures in composites . And the purpose of this paper is the suggestion of an appropriate test method for the evaluation of tensile properties of filament wound structures. The tensile strength of a ring specimen tested by the dress disk test showed better agreement with the theoretical values than that of a ring specimen tested by the split disk test because the stress concentration in edges of a split disk test fixture is more severe than that of dress disk test fixture. The results showed that the tensile strength of a ring specimen was influenced by the geometry of test fixture, the continuity of fibers, fiber-tension, fiber-end and stress concentration in specimen.

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A Study on the Evaluation Method for optimal Tensile NOL Ring Composite Specimen Manufactured by Filament Winding Process-to manufacture and elvaluate the composite turbine blade of wind generator system- (필라멘트 와인딩 공법으로 제조된 복합재료 NOL Ring 시험편의 최적 인장강도의 평가법에 관한 연구 -풍력발전용 복합재료 터빈블레이드 제조 및 평가를 목적으로-)

  • 배창원;권순철;임철문;엄수현;김윤해
    • Journal of Advanced Marine Engineering and Technology
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    • v.25 no.1
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    • pp.87-94
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    • 2001
  • Filament winding process is a comparatively simple operation in which continuous reinforcements in the form of roving are wound over a rotating mandrel. And now it is well established as a versatile method for storage tanks and pipe for the chemical and other industries. In this study, tensile strength of a filament wound ring specimens were evaluated by split disk test fixture and dress disk test fixture. The results obtained from experiments were compared with the theoretical values obtained by the rule of mixture. And the purpose of this paper is to suggest an appropriate test method for the evaluation of tensile properties of filament wound structures. The tensile strength of a ring specimens tested by the dress disk test showed better agreement with the theoretical values than of a ring specimen tested by the split disk test because the stress concentration in edges of s split disk test fixture is more severe than the that of dress disk test fixture. The results showed that the tensile strength of a ring specimen was influenced by the geometry of test fixture, the continuity of fibers, fiber-tension, fiber-end and stress concentration in specimen.

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A Study on the Optimum Evaluation Method for Tensile NOL Ring Specimen Manufactured by Filament Winding Process (Filament Winding에 의해 제조된 복합재료 NOL Ring시험편의 최적 인장강도 평가법에 관한 연구)

  • 김윤해;권술철;임철문
    • Composites Research
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    • v.14 no.2
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    • pp.8-12
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    • 2001
  • Filament Winding Process is a comparatively simple operation in which continuous reinforcements in the form of roving are wound over a rotating mandrel. It is well established and versatile method for storage tanks and pipes for the chemical and other industries. In this study, tensile strength of a filament wound ring specimens were evaluated by a split disk test fixture and a dress disk test fixture. The results obtained from experiments were compared with the theoretical values from the rule of mixtures. The purpose of this paper is the suggestion of an appropriate test method for the evaluation of tensile properties of filament wound structures. The tensile strength of a ring specimen tested by the dress disk test showed better agreement with the theoretical values than those tested by the split disk test because of higher stress concentration in edges of a split disk test fixture. The results showed that the tensile strength of a ring specimen was influenced by the geometry of test fixture, the continuity of fibers, fiber-tension, fiber-end and stress concentration in specimen.

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