Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Effect of Spew Fillet on Failure Strength Properties of Natural Fiber Reinforced Composites Including Adhesive Bonded Joints

접착제 접합된 자연섬유강화 복합재료의 파괴강도 특성에 미치는 접착제 필릿의 영향

  • Yoon Ho-Chel (Dept. of Mechanical Design, Chonbuk Nat'l Univ.,) ;
  • Choi Jun-Yong (Dept. of Mechanical Design, Chonbuk Nat'l Univ.,) ;
  • Kim Yong-Jig (Dept. of Industrial Facilities Control, Iksan Nat'l Collage) ;
  • Lim Jae-Kyoo (Research Center of Industrial Technology, Engineering Research Institute, Faculty of Mechanical & Aerospace System Eng., Chonbuk Nat'l Univ.,)
  • 윤호철 (전북대학원 기계설계학과) ;
  • 최준용 (전북대학원 기계설계학과) ;
  • 김연직 (국립익산대학 산업설비제어과) ;
  • 임재규 (전북대학교 기계항공시스템공학부, 공업기술연구센터)
  • Published : 2005.12.01
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Abstract

This paper is concerned with a study on fracture strength of composites in an adhesive single lap joint. The tests were carried out on joint specimens made with hybrid stacked composites consisting of the polyester and bamboo natural fiber layer. The main objective of this work was to evaluate the fracture properties adjacent to adhesive bonded joint of natural fiber reinforced composite specimens. From the results, natural fiber reinforced composites have lower tensile strength than the original polyester. But tensile-shear strength of natural fiber reinforced composites with bamboo layer far from adhesive bond is as high as that of the original polyester adhesive bonded joints. Spew filet at the end of the overlap reduced the stress concentration at the bonded area. Spew fillet and position of bamboo natural fiber layer have a peat effect on the tensile-shear strength of natural fiber reinforced composites including adhesive bonded joints.

Keywords

References

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