서지주요정보
복합재 압력용기의 기하학적 비선형및 재료 비선형 해석 = Geometrically and materially nonlinear analysis for composite pressure vessel
서명 / 저자 복합재 압력용기의 기하학적 비선형및 재료 비선형 해석 = Geometrically and materially nonlinear analysis for composite pressure vessel / 도영대.
발행사항 [대전 : 한국과학기술원, 1995].
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등록번호

8005494

소장위치/청구기호

학술문화관(문화관) 보존서고

DAE 95002

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An incremental Total Lagrangian Formulation is implemented for the analysis of filament wound pressure vessel with consideration of the material and geometric nonlinearities. In the present study, the degenerated finite shell element is implemented for the analysis. This element takes into account the variations of the winding angle and the thickness along the meridional line of the vessel. This model can also represent geometrical nonlinear behavior by considering large displacements/large rotations. For large displacement/large rotation shell problems, the incremental equations are derived using a quadratic approximation for the increment of the reference vectors in terms of the nodal rotation increments. This approach leads to a complete tangent stiffness matrix. For material nonlinearity, the analysis is performed by using the piecewise linear method, taking account of the nonlinear shear stress-strain relation. The results of numerical tests include the large deflection behavior of the selected composite shell problem. When compared with the previous analysis, the results are in good agreement with them. The filament wound pressure vessel is analyzed with consideration of the geometrically and materially nonlinearity. The numerical results agree fairly well with the existing experimental results. The burst failure of the filament wound pressure vessel composed of T-800 graphite/epoxy is studied with consideration of the geometric nonlinearity. A particular concern is made in predicting the propagation of damage after initial failure and the burst pressure of the filament wound pressure vessel as a function of applied load. In order to predict the burst pressure, a progressive failure analysis is performed by using a failure criteria with a property degradation model. Experiments is also conducted to measure the strains and the burst pressure of the filament wound pressure vessel. A fairly good agreement is obtained between the analysis and the test results.

서지기타정보

서지기타정보
청구기호 {DAE 95002
형태사항 x, 146 p. : 삽화 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Young-Dae Doh
지도교수의 한글표기 : 홍창선
지도교수의 영문표기 : Chang-Sun Hong
학위논문 학위논문(박사) - 한국과학기술원 : 항공우주공학과,
서지주기 참고문헌 : p. 84-88
주제 Composite materials.
Nonlinear mechanics.
Fracture mechanics.
laminated materials.
압력 용기. --과학기술용어시소러스
복합 재료. --과학기술용어시소러스
비선형성. --과학기술용어시소러스
파괴 역학. --과학기술용어시소러스
Prssure vessels.
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