The buckling of a corrugated carbon fibre cylinder under external hydrostatic pressure
TL;DR: In this article, a carbon fiber corrugated circular cylinder was tested to destuction under external hydrostatic pressure, where the structure was modelled with several orthotropic axisymmetric thin-walled shell elements.
About: This article is published in Ocean Engineering.The article was published on 2001-09-01. It has received 23 citations till now. The article focuses on the topics: Hydrostatic pressure & Buckling.
TL;DR: In this article, the authors investigated the optimum design of a composite elliptical deep-submerged pressure hull under hydrostatic pressure to minimize the buoyancy factor of the submersible pressure hull with constraints on the failure criteria and the buckling strength of the hulls.
Abstract: The design of deep submersible pressure hull's structural is one of the core technologies of submersible development of human history. Submersible pressure hulls with fiber-reinforced multilayer constructions have been developed in the recent years as substitutes for classical metallic ring-stiffened pressure hulls; strength and stability are its top priority. This paper investigates the optimum design of a composite elliptical deep-submerged pressure hull under hydrostatic pressure to minimize the buoyancy factor of the submersible pressure hull under constraints on the failure criteria and the buckling strength of the hulls to reach the maximum operating depth. The thickness and the fiber orientation angles in each layer, the radii of the ellipse, and stringers dimensions were taken as design variables and determined in the design process. The optimization procedures are performed using commercial finite element analysis software ANSYS. Additionally, a sensitivity analysis is performed to study the infl...
TL;DR: In this article, an experimental study on corrugated thin-walled structures under uniform peripheral pressure is presented, and different buckling/failure modes are identified and investigated in the current experimental study.
TL;DR: In this paper, the authors deal with the description of the stability loss and postbuckling for multilayered composite structures, both experimental results and theoretical predictions are presented and discussed.
TL;DR: In this paper, the buckling of circumferentially corrugated cylindrical shells under uniform external pressure, along with the effects of corrugation on buckling, was studied.
Abstract: The paper focuses on the buckling of circumferentially corrugated cylindrical shells under uniform external pressure, along with the effects of corrugation on the buckling. The buckling of ...
TL;DR: In this article, the buckling behavior of cross-ply cylinders under hydrostatic pressure is investigated using a semi-analytical finite element based on a consistent first order shear deformable shell theory.
01 Jan 1989
TL;DR: In this article, the methodes are numeriques and the fonction de forme reference record created on 2005-11-18, modified on 2016-08-08.
Abstract: Keywords: methodes : numeriques ; fonction de forme Reference Record created on 2005-11-18, modified on 2016-08-08
01 Jan 1938
TL;DR: This chapter discusses the Behavior of Bodies Under Stress, which involves tension, Compression, Shear, and Combined Stress, and the role of Fasteners and Joints in this Behavior.
Abstract: Chapter 1. Introduction Chapter 2. Stress and Strain: Important Relationships Chapter 3. The Behavior of Bodies Under Stress Chapter 4. Principles and Analytical Methods Chapter 5. Numerical Methods Chapter 6. Experimental Methods Chapter 7. Tension, Compression, Shear, and Combined Stress Chapter 8. Beams Flexure of Straight Bars Chapter 9. Curved Beams Chapter 10. Torsion Chapter 11. Flat Plates Chapter 12. Columns and Other Compression Members Chapter 13. Shells of Revolution Pressure Vessels Pipes Chapter 14. Bodies under Direct Bearing and Shear Stress Chapter 15. Elastic Stability Chapter 16. Dynamic and Temperature Stresses Chapter 17. Stress Concentration Chapter 18. Fatigue and Fracture Chapter 19. Stresses in Fasteners and Joints Chapter 20. Composite Materials Chapter 21. Solid Biomechanics Appendix A. Properties of a Plane Area Appendix B. Mathematical Formulas and Matrices Appendix C. Glossary Index
01 Feb 1988
TL;DR: In this paper, the test methods recommended in these data sheets apply to resin matrix composites reinforced with orientated continuous fibres and are valid for all grades of carbon glass and aramid fibres, in both U/D tape and woven fabric forms.
Abstract: : The test methods recommended in these data sheets apply to resin matrix composites reinforced with orientated continuous fibres. They are valid for all grades of carbon glass and aramid fibres, in both U/D tape and woven fabric forms including mixed fibre hybrid combinations, provided that the modes of failure are representative. Epoxy resin matrix systems were used in the development of these methods, but, although confirmatory test evidence is lacking, other resin systems should be equally suitable provided that the composite properties fall within any prescribed test limitations and that valid failure modes are obtained. All multidirectional laminates, including woven fabric laminates, must have their ply orientations and stacking sequence balanced about the mid-plane and the longitudinal axis to ensure axial loading and to prevent rotational, flexural, or off-axis displacements. Great Britain.
01 Jan 1941
TL;DR: Schwalbe as discussed by the authors presented a thesis for the degree of doctor of philosophy at the University of Illinois in 1936 and extended the analysis, but the final results were substantially the same.
Abstract: "The investigation ... is a part of the thesis presented by the author ... for the degree of doctor of philosophy ... at the University of Illinois in 1936 ... W.L. Schwalbe ... extended the analysis ... but the final results are substantially the same."--Introd.
TL;DR: In this article, numerical solutions have been produced for the asymmetric instability of thin-walled circular cylindrical and truncated conical shells under external pressure, which can be applied to vessels of varying thickness or those subjected to unsymmetrical loading or with complex boundary conditions.
Abstract: Numerical solutions have been produced for the asymmetric instability of thin-walled circular cylindrical and truncated conical shells under external pressure. The solutions for the circular cylinder have shown that the assumed buckling configurations of Nash and Kaminsky were quite reasonable for fixed ends. Comparison was also made of the finite-element solution of conical shells with other analyses. From these calculations, it was shown that the numerical solutions were superior to the analytical ones, as the former could be readily applied to vessels of varying thickness or those subjected to unsymmetrical loading or with complex boundary conditions.