Design optimization of laminated composite plates with static and dynamic considerations in hygrothermal environments

Cho, Hee-Keun

doi:10.1007/s12541-013-0187-7

Cited by 8 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Over several decades, the study on design optimization for laminated composite structures like beams and plates is preferred and has attracted a certain attention from many researchers around the world. A lot of these previous studies focused on singleobjective optimization in which the fitness functions are usually maximizing fundamental frequency [2][3][4][5][6][7], or maximizing buckling load [8][9][10][11][12][13], or maximizing strain energy/stress [14][15][16][17], or minimizing weight [18][19][20], or topology optimization [21,22] while design variables are frequently fiber orientation angles, fiber distribution and thickness of layers.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization of laminated composite beam structures using NSGA-II algorithm

Vo-Duy

Duong-Gia

Ho-Huu

et al. 2017

Composite Structures

113

View full text Add to dashboard Cite

The paper deals with the multi-objective optimization problem of laminated composite beam structures. The objective function is to minimize the weight of the whole laminated composite beam and maximize the natural frequency. The design variables include fiber volume fractions, thickness and fiber orientation angles of layers, in which the fiber volume fractions are taken as continuous design variables with the constraint on manufacturing process while the thickness and fiber orientation angles are considered as discrete variables. The beam structure is subject to the constraint in the natural frequency which must be greater than or equal to a predetermined frequency. For free vibration analysis of the structure, the finite element method is used with the two-node Bernoulli-Euler beam element. For solving the multi-objective optimization problem, the nondominated sorting genetic algorithm II (NSGA-II) is employed. The reliability and effectiveness of the proposed approach are demonstrated through three numerical examples by comparing the current results with those of previous studies in the literature.

show abstract

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization of laminated composite beam structures using NSGA-II algorithm

Vo-Duy

Duong-Gia

Ho-Huu

et al. 2017

Composite Structures

113

View full text Add to dashboard Cite

show abstract

Hygrothermal vibration of a laminated sandwich plate with magnetostrictive faces and a homogeneous core

Zenkour

El-Shahrany

2021

Polymer Composites

View full text Add to dashboard Cite

Hygrothermal forced vibration and damping analyses of a simply supported symmetric laminated composite plate with homogeneous core and magnetostrictive layers are examined using the exponential displacement model in this article. Three hygrothermal environment distribution types are investigated: uniform, linear and nonlinear rises in the present analysis. The equations of motion for laminated rectangular plates subjected to hygrothermal loads and in-plane forces in x and y directions are developed through Hamilton's principle. The closed-form solution is arrived at based on Navier's technique to analyze the hygrothermal effect on the vibrational behavior of the structure. Some parametric examples are presented to discuss the effects of the smart layer location, lamination schemes, mode number, aspect ratio, thickness ratio, feedback gain control value, in-plane forces, core thickness-to-fiber reinforced layer thickness ratio, magnetostrictive layer thickness to fiber-reinforced layer thickness ratio, temperature and moisture changes on vibration response of the proposed model. The study results illustrate that the high hygro ratio weakens the plate stiffness, and accordingly, the amplitude of the deflection increases with raising the moisture and/or temperature. The numerical results emphasize the strong role of the feedback control gain values and the smart layer position in controlling the system vibration. The largest deflections and highest damping time interval happen in the uniform temperature distribution and moisture concentration case. Moreover, the vibration frequencies of the thin smart plates are smaller than the thick ones.

show abstract

Optimization of laminated composite cylindrical shells to maximize resistance to buckling and failure when subjected to axial and torsional loads

Cho

2018

Int. J. Precis. Eng. Manuf.

View full text Add to dashboard Cite

Design optimization of laminated composite plates with static and dynamic considerations in hygrothermal environments

Cited by 8 publications

References 11 publications

Multi-objective optimization of laminated composite beam structures using NSGA-II algorithm

Multi-objective optimization of laminated composite beam structures using NSGA-II algorithm

Hygrothermal vibration of a laminated sandwich plate with magnetostrictive faces and a homogeneous core

Optimization of laminated composite cylindrical shells to maximize resistance to buckling and failure when subjected to axial and torsional loads

Contact Info

Product

Resources

About