서지주요정보
보강된 복합 적층 평판의 좌굴 및 좌굴후 거동해석 = Buckling and postbuckling behavior of stiffened laminated composite panels
서명 / 저자 보강된 복합 적층 평판의 좌굴 및 좌굴후 거동해석 = Buckling and postbuckling behavior of stiffened laminated composite panels / 김광수.
저자명 김광수 ; Kim, Kwang-Soo
발행사항 [대전 : 한국과학기술원, 1994].
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등록번호

8004576

소장위치/청구기호

학술문화관(문화관) 보존서고

MAE 94007

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초록정보

A nonlinear finite element analysis of buckling and postbuckling behavior of I-and hat-stiffened laminated composite flat panels is presented. Progressive failure analysis is also conducted to predict failure characteristics and postbuckling compressive strength. In the nonlinear finite element formulation, the updated Lagrangian scheme based on the second Piola-Kirchhoff stress tensor and the Green strain tensor is used. For the finite element modeling of stiffened panels, the eight-node degenerated shell element is utilized. For the progressive failure analysis, the maximum stress criterion is applied to the average stress in each layer of all the finite elements and stiffness modulus and stress corresponding to the each failure mode are reduced to zero. The behaviors of stiffened panels loaded in axial compression with various stiffener spacings and cap thicknesses of I-stiffener are investigated. The postbuckling compressive strength of stiffened panels is much higher than their initial buckling stress. The initial buckling stress and postbuckling compressive strength of hat-stiffened panels are higher than those of I-stiffened panels since local buckling deformations in skin and stiffener of hat-stiffened panels are small. Once first compression fiber failure occurs in the stiffener, the stiffness of stiffened panel decreases abruptly and catastrophic failure occurs. While increasing cap thickness of I-stiffener increases only initial buckling stress, decreasing stiffener spacing increases both the initial buckling stress and postbuckling compressive strength.

서지기타정보

서지기타정보
청구기호 {MAE 94007
형태사항 viii, 75 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Kwang-Soo Kim
지도교수의 한글표기 : 홍창선
지도교수의 영문표기 : Chang-Sun Hong
학위논문 학위논문(석사) - 한국과학기술원 : 항공우주공학과,
서지주기 참고문헌 : p. 39-40
주제 Laminated materials.
Finite element method.
Strains and stresses.
Fracture mechanics.
좌굴. --과학기술용어시소러스
복합 재료. --과학기술용어시소러스
유한 요소법. --과학기술용어시소러스
파괴 역학. --과학기술용어시소러스
Buckling (Mechanics)
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