Optimum Design of Laminated Composite Plates for Maximum Thermal Buckling Loads

Singha, M.K.; Ramachandra, L. S.; Bandyopadhyay, Jayita

doi:10.1177/002199800772661930

Cited by 26 publications

(10 citation statements)

References 12 publications

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“…The convergence of the present optimization study is compared with the literature results [6,8] for Material 2. Therefore, the optimum fiber orientations are obtained for maximum thermal critical temperature with simply supported and clamped angle-ply laminated plates (N=4).…”

Section: Optimization Problemmentioning

confidence: 97%

“…In design procedures of composite laminated plates for a maximum thermal buckling load, golden section method was used as an optimization routine. Singha et al [8] maximized buckling temperatures of graphite/epoxy laminated composite plates for a given total thickness. The fiber orientations and thicknesses of layers were adopted as design variables.…”

Section: Introductionmentioning

confidence: 99%

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Thermal buckling load optimization of laminated composite plates

Topal

Uzman

2008

Thin-Walled Structures

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Section: Optimization Problemmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Thermal buckling load optimization of laminated composite plates

Topal

Uzman

2008

Thin-Walled Structures

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“…The buckling temperature was maximized for 3, 4 and 5 layered simply supported and clamped plates by Singha et al (2000) using both ply angles and thicknesses as design variables. The optimum solutions were obtained using a genetic algorithm coupled to finite element analysis based on first order shear deformation theory.…”

Section: S Adalimentioning

confidence: 99%

Optimization of Laminated Composites and Overview of Smart Material Applications

Adali

2003

Modern Trends in Composite Laminates Mechanics

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The issues, problems and techniques concerning the optimization of laminated composites are discussed and specific cases of design optimization are presented. After a general introduction to methods of optimization of composites with emphasis on genetic algorithms, a discussion of design and decision variables is given and problem complexities are highlighted. This is followed by specific examples of composites design under deterministic conditions, and in particular, stiffness and strength optimization, thermal buckling, and optimization with multiple objectives are studied. The design uncertainties are the subject of the separate chapter where design optimization techniques such as convex modelling and anti-optimization are illustrated again by means of specific examples involving uncertain material, load and geometric data. Section 6 provides an overview of the properties and applications of widely used smart materials which is followed by some specific examples of the use of smart materials in vibration control and composite design applications. It is noted that sections 1-5 (except the material on genetic algorithms) are an abridged version of the material in Adali (2003) which is being published in these Lecture Notes with the permission of CRC Press.

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“…Walker et al 36 maximized buckling temperatures. Singha et al 37 also maximized buckling temperatures of graphite/epoxy laminated composite plates using the finite element method with four node shear deformable plate element. Genetic Algorithm was employed for five layered plates.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Damaged Composite Plates Under Buckling and Post buckling condition in Hygrothermal Environment employing an Inverse Hyperbolic Shear Deformation Theory

Sreehari

Maiti

2015

56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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This paper deals with the incorporation of Inverse Hyperbolic Shear Deformation Theory (IHSDT), optimization with Unified Particle Swarm Optimization (UPSO) method and damage incorporation in buckling analysis of composite structures which all has received no attention yet. In the present investigation, buckling and post buckling analysis under hygrothermal loads using IHSDT, optimization of the critical buckling temperature of laminated plates considering the fiber orientation as design variable by employing a UPSO algorithm, effect of damage in buckling behaviour using an anisotropic damage model, etc. of laminated composite plates are discussed. FEM formulation and programming in MATLAB environment have been done. Optimized critical buckling temperature of laminated plates with internal flaw is found out with the fiber orientation as design variable. The outcomes and remarks from this work will assist to address some key issues concerning composite structures. Nomenclature u 0 , v 0 , w 0 = midplane displacements θ x, θ y = rotations at the midplane [K], [K nl ], [K G ] = global linear, nonlinear, and geometric stiffness matrices {U} = global displacement field λ cr = inplane magnification factor h = thickness of the plate w = maximum out of plane displacement θ l = ply angles of n layers T= temperature x i (t), v i (t) = position and velocity of particles at t th iteration of optimization rand = random numbers lying between 0 and 1 R, u = constriction and unification factors pbest, gbest, lbest = previous best position of particle itself, global best, and local best parameters of UPSO Γ 1 , Γ 2 = anisotropic damage parameters

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Optimum Design of Laminated Composite Plates for Maximum Thermal Buckling Loads

Cited by 26 publications

References 12 publications

Thermal buckling load optimization of laminated composite plates

Thermal buckling load optimization of laminated composite plates

Optimization of Laminated Composites and Overview of Smart Material Applications

Optimization of Damaged Composite Plates Under Buckling and Post buckling condition in Hygrothermal Environment employing an Inverse Hyperbolic Shear Deformation Theory

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