균일한 외압을 받는 원환보강 원통구조의 비선형 좌굴 특성
Nonlinear Buckling Characteristics of Ring-stiffened Circular Cylinders under Uniform External Pressure
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초록
This study aimed to analyze the nonlinear buckling of ring-stiffened circular cylinders under uniform external pressure, e.g. hydrostatic pressure, considering material nonlinearity and initial imperfection. In the present study, we analyzed the collapse pressure of pressure vessels using ANSYS Workbench, which is a framework of finite element methods. First, linear buckling analysis is performed to find collapse modes of the model. Second, scaling the first mode shape with small factor, geometric model is pre-deformed. And then, by analyzing the nonlinear buckling of the pre-deformed shape, the collapse pressure is estimated. To verify the validity of the analyses, we compared the results with Ross’experimental results. Finally, we applied it to ring-stiffened circular cylindrical shell of the pressure hull of a small submarine.
Abstract
This study aimed to analyze the nonlinear buckling of ring-stiffened circular cylinders under uniform external pressure, e.g. hydrostatic pressure, considering material nonlinearity and initial imperfection. In the present study, we analyzed the collapse pressure of pressure vessels using ANSYS Workbench, which is a framework of finite element methods. First, linear buckling analysis is performed to find collapse modes of the model. Second, scaling the first mode shape with small factor, geometric model is pre-deformed. And then, by analyzing the nonlinear buckling of the pre-deformed shape, the collapse pressure is estimated. To verify the validity of the analyses, we compared the results with Ross’experimental results. Finally, we applied it to ring-stiffened circular cylindrical shell of the pressure hull of a small submarine.
참고문헌 (18)
- 김승민, "초기 형상결함과 잔류응력이 있는 원환보강 원통의 최종강도에 관한 실험 및 이론 연구", 석사, pp.2001
- 김을년, "잠수함 압력선체의 피로강도에 대한 실험적 연구", 대한조선학회 논문집, 47(1), pp.67~75 (2010), 대한조선학회
- 김흥열, "소형 잠수함 압력선체의 구조설계", 대한조선학회 논문집, 49(2), pp.116~123 (2012), 대한조선학회[DOI]
- 박치모, "상용소프트웨어를 이용한 원환보강 원통의 최종강도해석(I)", 한국해양공학회지, 15(2), pp.120~123 (2001)
- 박치모, "상용소프트웨어를 이용한 원환보강 원통의 최종강도 해석(Ⅱ)", 한국해양공학회지, 16(1), pp.36~40 (2002), 한국해양공학회
- 신장용, "심해용 압력용기에 대한 붕괴해석", 한국해양공학회지, 13(4), pp.82~97 (1999)
- 조상래, "원환보강 원통의 최종강도 실험연구", 대한조선학회 2000년도 추계학술대회논문집, pp.314~319 (2000)
- 조상래, "수압을 받는 복합재 원통의 최종강도 실험 연구", 한국해양공학회지, 21(3), pp.52~57 (2007), 한국해양공학회
- Bryan, G. H., "Application of the Energy Test to the Collapse of a Long Thin Pipe under External Pressure", Proc. Camb. Phil. Soc, 6, pp.287~292 (1888)
- Hydrostatic Pressure Buckling of a Ringstiffened Tube, "Bryant, A.R.", ~, pp.NCRE Report No 306 (1954)
- Burcher, R., "Concepts in Submarine Design" (1995), Cambridge University Press
- "ANSYS Tutorial: Non Linear Buckling" (2010)[URL]
- Faulkner, D., "The Collapse Strength and Design of Submarines", RINA Symposium on Naval Submarine (1983)
- The Buckling under External Pressure of Circular Cylindrical Shells with Evenly Spaced, Equal Strength, Circular Ring-frames: Part III, "Kendrick, S.", ~, pp.NCRE Report No R244 (1953)
- Ross, C.T.F., "Pressure vessels: External pressure tech nology, 2nd ed." (2011), Woodhead publishing
- Von Mises, R., "Der Kritische Aussendruck für Allseits Belastete Zylindrische Rohre", Fest Zum 70 Geburstag von Prof. Dr A. Stodola, ~ (1929)
- Von Sanden, K., "The Strength of Cylindrical Shells, Stiffened by Frames and Bulkheads, under Uniform External Pressure on All Sides", David Taylor Model Basin Translation 38, ~ (1920)
- Windenburg, D.F., "Collapse by instability of thin cylindrical shells under external pressure", Trans. ASME, 11, pp.819~825 (1934)