Static analysis of piezoelectric functionally graded porous plates reinforced by graphene platelets

Lieu, Nguyen Thi Bich; Hung, Nguyen Xuan

doi:10.31814/stce.nuce2019-13(3)-06

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…In this paper, the finite element method was employed for structural analysis and the moving morphable bar method was applied for structural optimization. In the near future, a combination of isogeometric analysis [27,28] and moving polygonal morphable voids [29] in the design of porous materials will be explored.…”

Section: Discussionmentioning

confidence: 99%

Two-scale design of porosity-like materials using adaptive geometric components

Hoang

2020

STCE

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This paper is an extension of our recent work that presents a two-scale design method of porosity-like materials using adaptive geometric components. The adaptive geometric components consist of two classes of geometric components: one describes the overall structure at the macrostructure and the other describes the structure of the material at the microstructures. A smooth Heaviside-like elemental-density function is obtained by projecting these two classes on a finite element mesh, namely fixed to reduce meshing computation. The method allows simultaneous optimization of both the overall shape of the macrostructure and the material structure at the micro-level without additional techniques (i.e., material homogenization), connection constraints, and local volume constraints, as often seen in most existing methods. Some benchmark structural design problems are investigated and a selected design is post-processed for 3D printing to validate the effectiveness of the proposed method. Keywords: topology optimization; concurrent optimization; porosity structures; two-scale topology optimization; adaptive geometric components.

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Section: Discussionmentioning

confidence: 99%

Two-scale design of porosity-like materials using adaptive geometric components

Hoang

2020

STCE

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“…In this study, Kerr viscoelastic foundation model, refined zigzag theory, and analytical procedure were adopted. Lieu and Hung 37 examined the static behavior of piezoelectric GPL-reinforced porous rectangular plates subjected to mechanical and electrical loads by an isogeometric analysis approach. Chen et al 38 investigated the natural frequencies of piezoelectric GPL-reinforced porous nanobeams by a general modified strain gradient theory and the differential quadrature method.…”

Section: Introductionmentioning

confidence: 99%

Static bending mesh-free analysis of smart piezoelectric porous beam reinforced with graphene platelets

Hung

Duc

Tú

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper presents static analysis and response of smart piezoelectric porous beams by mesh-free approach. The beam consists of a functionally graded porous core reinforced with graphene platelets (GPLs) and two piezoelectric face layers. The effective material properties of the core vary smoothly through the thickness direction, and they are estimated based upon Halpin–Tsai micromechanical model. The electric potential is assumed to vary linearly across the thickness of the piezoelectric layers. Polynomial basis function-based C1-Hermite interpolation for all displacement and electric potential variables of the problem is proposed for the mesh-free method to discretize the equilibrium equations. Parametric studies are carried out to investigate the effects of material parameters and boundary conditions on the deflection and stresses of the beam subjected to mechanical and/or electrical load(s). Furthermore, the study also highlights the piezoelectric effect on the static bending control of the proposed beam.

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Static analysis of piezoelectric functionally graded porous plates reinforced by graphene platelets

Cited by 2 publications

References 28 publications

Two-scale design of porosity-like materials using adaptive geometric components

Two-scale design of porosity-like materials using adaptive geometric components

Static bending mesh-free analysis of smart piezoelectric porous beam reinforced with graphene platelets

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