Design optimization of lay-up and composite material system to achieve minimum buoyancy factor for composite elliptical submersible pressure hull

Fathallah, Elsayed; Qi, Hui; Tong, Lili; Helal, Mahmoud

doi:10.1016/j.compstruct.2014.11.002

Cited by 54 publications

(16 citation statements)

References 24 publications

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“…where X t , X c , Y t , Y c and S denote the ultimate longitudinal, transversal and shear strength constants, respectively. Also, (σ 11 , σ 22 and τ 12 ) denote the applied longitudinal, transversal and shear stress components, respectively, and can be calculated using Equation (10) [48]:…”

Section: Maximum Stress Failure Criteriamentioning

confidence: 99%

Numerical Analysis and Dynamic Response of Optimized Composite Cross Elliptical Pressure Hull Subject to Non-Contact Underwater Blast Loading

et al. 2019

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Among the most important problems confronted by designers of submarines is to minimize the weight, increase the payload, and enhance the strength of pressure hull in order to sustain the hydrostatic pressure and underwater explosions (UNDEX). In this study, a Multiple Intersecting Cross Elliptical Pressure Hull (MICEPH) subjected to hydrostatic pressure was first optimized to increase the payload according to the design requirements. Thereafter, according to the optimum design results, a numerical analysis for the fluid structure interaction (FSI) phenomena and UNDEX were implemented using nonlinear finite element code ABAQUS/Explicit. The propagation of shock waves through the MICEPH was analyzed and the response modes (breathing, accordion and whipping) were discussed. Furthermore, the acceleration, displacement and failure index time histories at different locations were presented. The results showed that the greatest acceleration occurred in the athwart direction, followed by the vertical and longitudinal directions. Additionally, the first bubble pulse has a major effect on athwart acceleration. Moreover, the analysis can be effectively used to predict and calculate the failure indices of pressure hull. Additionally, it provides an efficient method that reasonably captures the dynamic response of a pressure hull subjected to UNDEX.

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Section: Maximum Stress Failure Criteriamentioning

confidence: 99%

Numerical Analysis and Dynamic Response of Optimized Composite Cross Elliptical Pressure Hull Subject to Non-Contact Underwater Blast Loading

et al. 2019

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“…Lund [11] optimized laminated composite structures using failure criteria. Likewise, Fathallah et al [12][13][14][15] investigated the optimization of composite pressure hull for both maximizing the buckling load capacity and minimizing the buoyancy factor. Also, Panteleev [16] optimized sandwich structures and assured a reduction in their weight of 23% compared with the constant thickness plate.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, a multi-objective optimization methodology for non-circular cross-section pressure hull, as illustrated in Figure 1, is presented. T700/epoxy and B(4)5505/Epoxy composites have promise for these applications according to [12]. T700/Epoxy is used at extreme depths while B(4)5505/Epoxy is used at shallow-to-moderate depths.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Sandwich Composite Deep Submarine Pressure Hull Considering Failure Criteria

Helal

Huang

Wang

et al. 2019

JMSE

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The pressure hull is the primary element of submarine, which withstands diving pressure and provides essential capacity for electronic systems and buoyancy. This study presents a numerical analysis and design optimization of sandwich composite deep submarine pressure hull using finite element modeling technique. This study aims to minimize buoyancy factor and maximize deck area and buckling strength factors. The collapse depth is taken as a base in the pressure hull design. The pressure hull has been analyzed using two composite materials, T700/Epoxy and B(4)5505/Epoxy, to form the upper and lower faces of the sandwich composite deep submarine pressure hull. The laminated control surface is optimized for the first ply failure index (FI) considering both Tsai–Wu and maximum stress failure criteria. The results obtained emphasize an important fact that the presence of core layer in sandwich composite pressure hull is not always more efficient. The use of sandwich in the design of composite deep submarine pressure hull at extreme depths is not a safe option. Additionally, the core thickness plays a minor role in the design of composite deep submarine pressure hull. The outcome of an optimization at extreme depths illustrates that the upper and lower faces become thicker and the core thickness becomes thinner. However, at shallow-to-moderate depths, it is recommended to use sandwich composite with a thick core to resist the shell buckling of composite submarine pressure hull.

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“…As for the optimization of composites structures, a number of papers are available [7][8][9]. Topal et al [7] optimized the fiber orientation of symmetrically angle-ply square laminated plates under uniform thermal loads and biaxial compressive.…”

Section: Introductionmentioning

confidence: 99%

“…Herath et al [8] proposed an optimization scheme to design shape adaptive laminated composite marine propellers. Fathallah et al [9] performed the optimization of lay-up sequence using three composite materials by minimizing the buoyancy factor of submersible pressure hull.…”

Section: Introductionmentioning

confidence: 99%

Design optimization of composite cylinders for submersible pressure hulls

Shen¹,

Pan

Jiang

2016

Proceedings of the 2016 4th International Conference on Mechanical Materials and Manufacturing Engineering

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Design optimization of lay-up and composite material system to achieve minimum buoyancy factor for composite elliptical submersible pressure hull

Cited by 54 publications

References 24 publications

Numerical Analysis and Dynamic Response of Optimized Composite Cross Elliptical Pressure Hull Subject to Non-Contact Underwater Blast Loading

Numerical Analysis and Dynamic Response of Optimized Composite Cross Elliptical Pressure Hull Subject to Non-Contact Underwater Blast Loading

Numerical Analysis of Sandwich Composite Deep Submarine Pressure Hull Considering Failure Criteria

Design optimization of composite cylinders for submersible pressure hulls

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