4.7 Article

A collaborative grading optimization method of rib-reinforced ultra-thick composite pressure hull

Related references

Note: Only part of the references are listed.
Article Engineering, Mechanical

Investigation on the compressive mechanical properties of ultra-thick CFRP laminates

Yu Gao et al.

Summary: This study explores the compressive failure behavior of ultra-thick laminates and finds that delamination plays a key role in the failure process. The low interlaminar normal strength and wrinkle defects significantly reduce the compressive strength. The Puck criterion provides the most accurate prediction for matrix-dominant failure behavior, while Tsai-Wu 3D has the smallest error for delamination-dominant behavior.

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES (2023)

Article Engineering, Marine

Experimental and numerical analyses on buckling and strength failure of composite cylindrical shells under hydrostatic pressure

Xinhu Zhang et al.

Summary: This paper investigates the buckling and strength failure of composite cylindrical shells under hydrostatic pressure through experimental tests and finite element method. The effects of various factors on the critical buckling pressure and strength failure pressure are discussed.

OCEAN ENGINEERING (2022)

Article Engineering, Marine

Data-driven optimization design of a novel pressure hull for AUV

Ming Yang et al.

Summary: This paper presents a novel design of a ring-stiffened arched cylindrical (RAC) hull for autonomous underwater vehicles (AUVs), and proposes a data-driven approach for efficiently designing pressure hulls with irregular structures. The optimization design of the RAC structure for AUV is performed, and pressure tests are carried out to verify the proposed approach.

OCEAN ENGINEERING (2022)

Article Engineering, Marine

Buckling prediction for composite laminated cylindrical shells in underwater environment

Zhun Li et al.

Summary: This paper presents buckling solutions for composite laminated cylindrical shells in the underwater environment. Two calculation formulas are proposed to predict the buckling pressure for the underwater composite cylinders with different boundary conditions. The results are validated by comparison with experimental data and consider the influences of geometrical imperfections.

OCEAN ENGINEERING (2022)

Article Engineering, Marine

Collapse of externally pressurized elliptical steel cylinders stiffened with helical composite stripes

Xinlong Zuo et al.

Summary: This study investigates the collapse behavior of externally pressurized elliptical steel cylinders stiffened with helically wound composite stripes. The results show that the reinforcement provided by the composite stripes significantly improves the loading capacity of the steel cylinders, and elliptical steel-composite cylinders are less sensitive to imperfections.

OCEAN ENGINEERING (2022)

Article Engineering, Marine

Design and optimization of cylindrical hull with non-uniform arch ribs for underwater gliders based on approximate model and experiments

Cheng Wang et al.

Summary: This study proposes a cylindrical hull with non-uniform arch ribs to increase compressibility and decrease buoyancy factor of underwater vehicles. The optimal hull, obtained through design optimization and verified by finite element method and pressure tests, shows improved deformation and reduced mass compared to a conventional cylindrical hull.

OCEAN ENGINEERING (2022)

Article Engineering, Marine

Study on carbon fiber composite hull for AUV based on response surface model and experiments

Jixin Liu et al.

Summary: This study investigates the strength and stability of a carbon fiber composite cylindrical hull with strengthening ribs for an AUV using FEA and RSM. Critical design parameters are determined based on empirical formulas and test results, with parameter sensitivity analysis and response surface optimization conducted. A response surface quadratic model is established to evaluate the accuracy and determine final parameters for hull strength and stability, which is verified through tests and engineering applications.

OCEAN ENGINEERING (2021)

Article Mechanics

Influence of fiber cutting at the composite grid intersection on the compressive performance of laminate

Yu Gao et al.

Summary: This study conducted experimental and numerical analysis to investigate the impact of different cutting methods at composite grid intersections on compressive failure performance. The results indicated significant reduction in compressive strength, with dominant failure mechanisms being fiber fracture and inter-ply delamination. The numerical simulations aligned well with experimental findings, providing practical insights for design and manufacturing of thick AFP composite grid structures.

COMPOSITE STRUCTURES (2021)

Article Engineering, Marine

A Buckling Analysis and Optimization Method for a Variable Stiffness Cylindrical Pressure Shell of AUV

Zhaoqi Yang et al.

Summary: This study presents an analysis and optimization method for the variable stiffness composite cylindrical shell pressure structure of AUV, verifying its effectiveness through DFE and surrogate methods. The results indicate that the proposed model and method are accurate and efficient for optimizing critical buckling pressure.

JOURNAL OF MARINE SCIENCE AND ENGINEERING (2021)

Article Materials Science, Composites

Buckling load prediction of grid-stiffened composite cylindrical shells using the vibration correlation technique

Davoud Shahgholian-Ghahfarokhi et al.

COMPOSITES SCIENCE AND TECHNOLOGY (2018)

Article Materials Science, Composites

Fabrication and testing of composite orthogrid sandwich cylinder

Shu Jiang et al.

COMPOSITES SCIENCE AND TECHNOLOGY (2017)

Article Engineering, Marine

Conceptual design of a composite pressure hull

R. Craven et al.

OCEAN ENGINEERING (2016)

Article Engineering, Mechanical

Optimization of Hybrid Laminated Composites using a Genetic Algorithm

Rafael Holdorf Lopez et al.

JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING (2009)

Article Mechanics

Postbuckling of composite cylinders under external hydrostatic pressure

Seong-Hwa Hur et al.

COMPOSITE STRUCTURES (2008)

Article Materials Science, Composites

Microfibril reinforced polymer-polymer composites: Application of Tsai-Hill equation to PP/PET composites

C. Fuchs et al.

COMPOSITES SCIENCE AND TECHNOLOGY (2006)

Article Engineering, Marine

Optimum design of multiple intersecting spheres deep-submerged pressure hull

CC Liang et al.

OCEAN ENGINEERING (2004)

Article Engineering, Multidisciplinary

Buckling load analysis of grid stiffened composite cylinders

S Kidane et al.

COMPOSITES PART B-ENGINEERING (2003)

Article Mechanics

Optimal laminations of thin underwater composite cylindrical vessels

T Messager et al.

COMPOSITE STRUCTURES (2002)

Review Mechanics

Review of advanced composite structures for naval ships and submarines

AP Mouritz et al.

COMPOSITE STRUCTURES (2001)