서지주요정보
성형 잔류 열응력을 고려한 축방향 하중을 받는 튜브형 단면 겹치기 접착 조인트의 파괴에 관한 연구 = Failure of the adhesively bonded tubular single lap joints under axial tensile loads considering the fabrication residual thermal stresses
서명 / 저자 성형 잔류 열응력을 고려한 축방향 하중을 받는 튜브형 단면 겹치기 접착 조인트의 파괴에 관한 연구 = Failure of the adhesively bonded tubular single lap joints under axial tensile loads considering the fabrication residual thermal stresses / 김영구.
저자명 김영구 ; Kim, Young-Goo
발행사항 [대전 : 한국과학기술원, 1998].
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소장정보

등록번호

8009164

소장위치/청구기호

학술문화관(문화관) 보존서고

DME 98048

SMS전송

도서상태

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반납예정일

초록정보

The tensile load bearing capability of adhesively bonded tubular single lap joints which is calculated with the linear mechanical properties of the adhesive is usually much less than the experimentally determined because the majority of the load transfer of adhesively bonded joints is accomplished by the nonlinear behavior of rubber-toughened epoxy adhesive. Also, as the adhesive thickness increases, the calculated tensile load bearing capability with the linear mechanical properties of the adhesive increases, while, the experimentally determined tensile load bearing capability decreases on the contrary. In this paper, the stress analysis of the adhesively bonded tubular single lap steel-steel joints and carbon/epoxy composite-steel joints under axial tensile load was performed with taking into account the nonlinear mechanical properties and fabrication residual thermal stresses of adhesive. The nonlinear tensile properties of adhesive were approximated by an exponential equation which was represented by the initial tensile modulus and ultimate tensile strength of the adhesive. The stress distributions in the adhesive were calculated by applying the load obtained from the tensile tests. From the tensile tests and the stress analysis of adhesively bonded joints, the failure model for adhesively bonded tubular single lap joints was proposed. Using the results of stress analysis, the failure model for the adhesively bonded tubular single lap steel-steel joints and carbon/epoxy composite-steel joints under tensile load was developed, which can be used to predict the load bearing capability of the joint. From the failure model, it was found that the fracture of the adhesively bonded joint was much influenced by the fabrication residual thermal stresses. As a practical application of the developed adhesive joining theory, in this work, a composite robot structure was designed and manufactured with adhesive joining technology. After manufacturing the composite arm, the dynamic property and operational performance were compared to those of the hybrid third robot arm that was composed of the aluminum yoke, the composite tubular structure and the aluminum flange. From the experiments, it was found that the composite third robot arm contributed to improving both the dynamic characteristics and operational performance of the articulated robot.

서지기타정보

서지기타정보
청구기호 {DME 98048
형태사항 xv, 151 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Young-Goo Kim
지도교수의 한글표기 : 이대길
지도교수의 영문표기 : Dai-Gil Lee
학위논문 학위논문(박사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 146-151
주제 접착제
복합재료
조인트
파괴
Adhesive
Composites
Joint
Failure
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