서지주요정보
Jk 적분을 이용한 이방성 복합적층판에 대한 혼합모우드 균열문제의 해석 = Applicationn of the Jk integral to the analysis of mixed mode crack problems for anisotropic composite laminates
서명 / 저자 Jk 적분을 이용한 이방성 복합적층판에 대한 혼합모우드 균열문제의 해석 = Applicationn of the Jk integral to the analysis of mixed mode crack problems for anisotropic composite laminates / 주석재.
발행사항 [대전 : 한국과학기술원, 1990].
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소장정보

등록번호

8000302

소장위치/청구기호

학술문화관(문화관) 보존서고

DAE 9005

휴대폰 전송

도서상태

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리뷰정보

초록정보

The $J_k$ integral method is presented to decompose mixed mode stress intensity factors into mode I and mode II component for the anisotropic body with a crack. Narrow rectangular contours introduced by Cherepanov is adapted to obtain a simple form of the $J_k$ integral formula. Substituting functions of a complex variable defining the singular solution near the crack tip in an anisotropic body into the formula, the complete relations between $J_1$, $J_2$ and $K_Ⅰ$, $K_{Ⅱ}$ are obtained. The relation between $J_1$ and $K_Ⅰ$, $K_{Ⅱ}$ is identical to the existing one. To extract mixed mode stress intensity factors from a finite element solution, the $J_k$ integral is evaluated from it. Path independence of the $J_1$ integral is maintained numerically well. Unlike other path independent integral method developed for mixed mode crack problems the present method does not need calculating the auxiliary solution or decomposing the displacement. Numerical results of problems with existing solutions are compared and demonstrate the accuracy, stability and versatility of the method. The $\hat{J}_k$ integral as an extension of the $J_k$ integral is also presented for the problems with body forces and thermal loads, etc. Numerical results for an arc crack in a rotating disk are given and agree well with the existing Boundary Element results. Numerical results for a cracked plate subjected to thermal loads are also given and agree well with the existing $\hat{J}$ integral results obtained along a contour far from the crack tip and without neglecting the contribution of an area integral.

서지기타정보

서지기타정보
청구기호 {DAE 9005
형태사항 ix, 109 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Seok-Jae Chu
지도교수의 한글표기 : 홍창선
지도교수의 영문표기 : Chang-Sun Hong
학위논문 학위논문(박사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 52-56
주제 Laminated materials.
Boundary element method.
Stress concentration.
복합 재료. --과학기술용어시소러스
내부 균열. --과학기술용어시소러스
모드 1. --과학기술용어시소러스
모드 2. --과학기술용어시소러스
파괴 역학. --과학기술용어시소러스
Fracture mechanics.
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