Buckling and stress-competitive failure analyses of composite laminated cylindrical shell under axial compression and torsional loads

Mahdy, W.M.; Zhao, Libin; Liu, Fengrui; Rong, Pian; Wang, Huiping; Zhang, Jianyu

doi:10.1016/j.compstruct.2020.112977

Cited by 18 publications

(10 citation statements)

References 27 publications

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“…In this case, these two types of failure are mutually competitive, and if the structure meets any one failure criteria it will loose its load carrying capacity. Similar studies for the case of composite cylindrical shells have been performed very recently by Mahdy et al 5 and Choudhary et al 6…”

Section: Introductionsupporting

confidence: 75%

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Cross-section optimization of thin-walled open-section composite column for maximizing its ultimate strength

Choudhary

Mahato

Jana

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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This paper focuses on the optimization of thin-walled open cross-section laminated composite column subjected to uniaxial compressive load. The cross-section of the column is parameterized in such a way that it can represent a variety of shapes including most of the regular cross-sections such as H, C, T, and I sections. The objective is to obtain the best possible shape of the cross-section, by keeping a constant total material volume, which can maximize the ultimate load carrying capacity of the column. The ultimate strength of the column is determined by considering both buckling instability and material failure. For material failure, Tsai-Wu composite failure criterion is considered. As analytical solutions for these parameterized column models are not tractable, the ultimate loads of the composite columns are computed through finite-element analysis in ANSYS. And, the optimization is carried out by coupling these finite-element results with a genetic algorithm based optimization scheme developed in MATLAB. The optimal result obtained through this study is compared with an equivalent base model of cruciform cross-section. Results are reported for various lengths and boundary conditions of the columns. The comparison shows that a substantial increase of the ultimate load, as high as 610%, can be achieved through this optimization study. Thus, the present paper highlights some important characteristics of open cross-sections that can be useful in the design of thin-walled laminated column structures.

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Section: Introductionsupporting

confidence: 75%

“…It can be emphasized further that a stress-competitive failure analysis is necessary because the optimal cross-section shape may produce higher buckling load but it may fail against a stress-based failure criterion due to its weak material strength. 5…”

Section: Introductionmentioning

confidence: 99%

Cross-section optimization of thin-walled open-section composite column for maximizing its ultimate strength

Choudhary

Mahato

Jana

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…The material properties are: E 11 5 134.78 GPa, E 22 5 9.25 GPa, G 12 5 G 13 5 G 23 5 4.80 GPa, ν 12 5 ν 13 5 ν 23 5 0.286. In (Mahdy et al, 2021) and also we consider some common laminates. It is observed that optimal stacking sequence is having 107.80% increases in buckling load, when cylindrical shell is subjected to axial compressive load.…”

Section: Optimal Laminate Stacking For Various Materialsmentioning

confidence: 99%

Optimal design of composite cylindrical shells subject to compression buckling strength

Choudhary¹

2023

MMMS

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PurposeThe objective of the present work is to present the design optimization of composite cylindrical shell subjected to an axial compressive load and lateral pressure.Design/methodology/approachA novel optimization method is developed to predict the optimal fiber orientation in composite cylindrical shell. The optimization is carried out by coupling analytical and finite element (FE) results with a genetic algorithm (GA)-based optimization scheme developed in MATLAB. Linear eigenvalue were performed to evaluate the buckling behaviour of composite cylinders. In analytical part, besides the buckling analysis, Tsai-Wu failure criteria are employed to analyse the failure of the composite structure.FindingsThe optimal result obtained through this study is compared with traditionally used laminates with 0, 90, ±45 orientation. The results suggest that the application of this novel optimization algorithm leads to an increase of 94% in buckling strength.Originality/valueThe proposed optimal fiber orientation can provide a practical and efficient way for the designers to evaluate the buckling pressure of the composite shells in the design stage.

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“…According to the results, an optimal volume fraction might increase the stability of an MEE composite cylindrical shell under a specific multi-field coupled load. A competitive failure analysis framework for composite laminated cylindrical shells was contrasted under axial compression and torsional loads, as opposed to the prior failure analysis, which only examined buckling failure [28]. The higher the ratios of longitudinal compressive strength to longitudinal modulus, and shear strength to longitudinal modulus, of the composite material, the more possible it is for the material to buckle; otherwise, stress failure occurs.…”

Section: State Of the Artmentioning

confidence: 99%

Effects of geometry and material factors on the behavior of stiffened offshore pipe structures under hydrostatic pressure

Widiyanto

Prabowo

Muttaqie³

et al. 2022

J Appl Eng Science

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The world's oil and gas sectors are diverse. They utilize offshore pipes to generate millions of barrels of oil and gas to meet global energy demands. In this study we identified the critical buckling load that occurred on a cylinder shell (also known as radial buckling). Offshore pipe design must meet several criteria, one of which is the requirement for pipes to withstand the external hydrostatic pressure of seawater. The overall buckling load is calculated using the axial compression loading and the pressure on the entire surface of the cylinder shell (radial compression). The finite element analysis (FEA) method is used in our simulation. FEA is run using ABAQUS/CAE software with the Riks algorithm. Different types of cylinder shells are used in the simulation: unstiffened, stringer-stiffened, and ring-stiffened. The cylinder shell is loaded based on the depth of the installation. The material composition of the shell is varied with API 5L X65, copper-nickel alloy, and HY100 steel. The diameter sizes used are 28" (711.2 mm), 30" (762 mm), and 32" (812.8 mm). The simulation results show a critical buckling load for each variation. The critical buckling load is determined by the Young's modulus, geometric length, and moment of inertia. Based on the critical buckling loads generated, we also identify which cylinder shell composition is the strongest.

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Buckling and stress-competitive failure analyses of composite laminated cylindrical shell under axial compression and torsional loads

Cited by 18 publications

References 27 publications

Cross-section optimization of thin-walled open-section composite column for maximizing its ultimate strength

Cross-section optimization of thin-walled open-section composite column for maximizing its ultimate strength

Optimal design of composite cylindrical shells subject to compression buckling strength

Effects of geometry and material factors on the behavior of stiffened offshore pipe structures under hydrostatic pressure

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