Optimization of the Laminate Structure of a Composite Cylinder Based on the Combination of Response Surface Methodology (RSM) and Finite Element Analysis (FEA)

This study optimized the laminate structure of a composite cylinder under the constraint of minimum layup thickness. Based on the progressive damage theory, a finite element model of the cylinder was established, and the NOL ring tensile test was used to verify the accuracy of the damage theory. The...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2022-10, Vol.27 (21), p.7361
Main Authors: Li, Zhiqi, Liu, Yipeng, Qi, Liangliang, Mei, Zhonghao, Gao, Ruize, Yu, Muhuo, Sun, Zeyu, Wang, Ming
Format: Article
Language:English
Subjects:
Carbon fibers
composite cylinder
Composite materials
Deformation
Design optimization
Energy
Epoxy resins
Failure analysis
FEA
Finite element analysis
Finite element method
Gas cylinders
Genetic algorithms
Hydrogen
Laminates
optimization design
Optimization techniques
Pressure
Response surface methodology
RSM
Shear strength
Stacking sequence (composite materials)
Stress concentration
Tensile strength
Tensile tests
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Summary:This study optimized the laminate structure of a composite cylinder under the constraint of minimum layup thickness. Based on the progressive damage theory, a finite element model of the cylinder was established, and the NOL ring tensile test was used to verify the accuracy of the damage theory. The winding angle, the number of layers, and the helical/hoop ratio (the stacking sequence) were selected as the optimization factors, and the burst pressure value was used to evaluate the quality of the laminate structure. Then the orthogonal experiments were designed by RSM. Combined with FEA, the function model of the burst pressure of the gas cylinder and each optimization factor was established to obtain the optimal layering scheme, satisfying the minimum burst pressure. In addition, finite element analysis was used to verify the optimal scheme, demonstrating that the error of the burst pressure predicted by the quadratic model established by the response surface design was not more than 5%. This study provides a faster and more efficient optimization method for the optimization design of composite gas cylinder layers.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27217361