Optimal Design of Plated/Shell Structures under Flutter Constraints—A Literature Review

Muc, Aleksander; Flis, Justyna; Augustyn, Marcin

doi:10.3390/ma12244215

Cited by 23 publications

(6 citation statements)

References 240 publications

(225 reference statements)

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“…The material function in P-FGM is expressed using volume fraction expression in Equation ( 2) and young's modulus variation from Equation (3). For P-FGM beam analysis the integration is performed from (−h/2) to (h/2) to obtain the stiffness coefficients of Equations ( 16)- (18).…”

Section: Power-law Function Fgm Beammentioning

confidence: 99%

“…A new insight on the potential application of FGM for an extreme environment such as for fire protection was presented in [15,16]. There has also been a significant interest in FGM plate analysis through both analytical and finite element investigation such as in [17][18][19][20]. Literature on FGM beams under arbitrarily distributed loading, crack growth, and bilayer FGM cantilever beams are also available in [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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A Simplified Stress Analysis of Functionally Graded Beams and Influence of Material Function on Deflection

Althoey

Ali

2021

Applied Sciences

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This paper aims at providing a simplified analytical solution for functionally graded beam stress analysis and optimized material gradation on the beam deflection. The power-law (P-FGM) and exponential (E-FGM) material functions were considered for an exact solution of the normal and shear stress distributions across the beam thickness. Optimization of material function on the FGM beam deflection, which is new of its kind, was also investigated considering both simply supported and cantilever beams. It was observed that the non-dimensional normal stress and shear stress are independent of the elastic moduli values of the constituent materials but rather depends on both the ratio of the elastic moduli and the location across the beam thickness in the E-FGM material function model. This observation was first validated from available kinds of literature and through numerical simulation using ABAQUS and extended to the P-FGM stress analysis. The maximum deflection on the FGM beam occurred for a homogenous steel beam while the minimum deflection was observed on the beam with a P-FGM material function. The results of this work demonstrate that if properly designed and optimized, FGMs can provide an alternative material solution in structural applications.

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Section: Power-law Function Fgm Beammentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Simplified Stress Analysis of Functionally Graded Beams and Influence of Material Function on Deflection

Althoey

Ali

2021

Applied Sciences

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“…Fatigue problems of structures with a singular notch [47,48], 4. Free vibrations and flutter problems of plates and cylindrical shells [49][50][51].…”

Section: Analysis Of Macroscopic (Global) Failure Modes Of Composite Structuresmentioning

confidence: 99%

Introduction to Macroscopic Optimal Design in the Mechanics of Composite Materials and Structures

Muc

2021

J. Compos. Sci.

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The main goal of building composite materials and structures is to provide appropriate a priori controlled physico-chemical properties. For this purpose, a strengthening is introduced that can bear loads higher than those borne by isotropic materials, improve creep resistance, etc. Composite materials can be designed in a different fashion to meet specific properties requirements.Nevertheless, it is necessary to be careful about the orientation, placement and sizes of different types of reinforcement. These issues should be solved by optimization, which, however, requires the construction of appropriate models. In the present paper we intend to discuss formulations of kinematic and constitutive relations and the possible application of homogenization methods. Then, 2D relations for multilayered composite plates and cylindrical shells are derived with the use of the Euler–Lagrange equations, through the application of the symbolic package Mathematica. The introduced form of the First-Ply-Failure criteria demonstrates the non-uniqueness in solutions and complications in searching for the global macroscopic optimal solutions. The information presented to readers is enriched by adding selected review papers, surveys and monographs in the area of composite structures.

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“…Recently, piezoelectric layers have been used on thick porous plates to study the aeroelastic flutter [13]. Furthermore, aeroelastic optimization has been investigated for materials with piezoelectric actuators and sensors [14]. Adding a shunt circuit to a piezoelectric material can create a piezopatch to effectively modify the wing's aeroelastic behaviour.…”

Section: Introductionmentioning

confidence: 99%

Smart Wing Flutter Suppression

Moosavi

Elasha

2022

Designs

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In this work, it has been shown the effect of a piezoelectric material on postponing the flutter phenomenon and even removing it completely on a regular wing. First, the system response of a smart wing with only plunge DOF and pitch DOF are presented. Using an efficient piezopatch can effectively decay the oscillations of the smart wing in a very short time. In addition, implementing one piezopatch in the plunge DOF of a regular wing with three DOF can postpone the flutter speed by 81.41%, which is a considerable increase in the flutter speed. We then present the effect of adding one more piezopatch to a smart wing in the pitch DOF to further postpone the flutter phenomenon. The flutter speed in a smart wing can be postponed by 115.96%, which is a very considerable value. Finally, adding one more piezopatch on a smart wing in the control DOF can completely remove the flutter phenomenon from the wing, which represents a great achievement in the dynamic aeroelectic behavior of a wing.

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Optimal Design of Plated/Shell Structures under Flutter Constraints—A Literature Review

Cited by 23 publications

References 240 publications

A Simplified Stress Analysis of Functionally Graded Beams and Influence of Material Function on Deflection

A Simplified Stress Analysis of Functionally Graded Beams and Influence of Material Function on Deflection

Introduction to Macroscopic Optimal Design in the Mechanics of Composite Materials and Structures

Smart Wing Flutter Suppression

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