서지주요정보
적층 복합재 구조물에 대한 확률유한요소법과 시스템 신뢰도 해석 = Stochastic finite element method and system reliability analysis for laminated composite structures
서명 / 저자 적층 복합재 구조물에 대한 확률유한요소법과 시스템 신뢰도 해석 = Stochastic finite element method and system reliability analysis for laminated composite structures / 박지상.
발행사항 [대전 : 한국과학기술원, 1995].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8005914

소장위치/청구기호

학술문화관(문화관) 보존서고

DAE 95011

휴대폰 전송

도서상태

이용가능(대출불가)

사유안내

반납예정일

리뷰정보

초록정보

The stochastic finite element method was developed based on second moment method for the probabilistic analysis of laminated composite structures in which physical properties have uncertainties and variability. The material properties, fiber angles, laminate thickness, and curvatures were modeled as random parameters. The random thickness and fiber angles affect the strain-displacement relations and principal material directions. This randomness was considered in the formulation to obtain accurate statistical responses. A procedure of system reliability analysis using the stochastic finite element method was also presented. Composite structure was considered as a random structure to involve the effect of uncertainties of structure itself on reliability. Composite laminates were assumed to be multicomponent series system, and the correlations between possible failure modes of different components were considered to obtain consistent probability of system failure. The system reliability is obtained by bi-modal bounds of probability of system failure. The methods were verified through comparison of the results with those obtained by the Monte Carlo simulations for two example problems. Statistics of structural responses were derived very accurately. Narrow bounds of failure probability were obtained with acceptable accuracy. The developed methods can be applied to practical design and analysis of composite structures. A design procedure of bolted joint in composite structures under the requirement of reliability was exemplified. The developed methods are very efficient and accurate enough to be applied to engineering problems, and can assess the risk of structures quantitatively and logically.

서지기타정보

서지기타정보
청구기호 {DAE 95011
형태사항 xiii, 115 p. : 삽화 ; 26 cm
언어 한국어
일반주기 부록 : A, 일차전단변형 쉘 요소
저자명의 영문표기 : Ji-Sang Park
지도교수의 한글표기 : 홍창선
지도교수의 영문표기 : Chang-Sun Hong
학위논문 학위논문(박사) - 한국과학기술원 : 항공우주공학과,
서지주기 참고문헌 : p. 73-75
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