Dynamic eigenstrain behavior of magnetoelastic functionally graded cellular cylinders

Akbarzadeh, A.H.; Fu, Jiawei; Chen, Zengtao; Qian, Linfang

doi:10.1016/j.compstruct.2014.05.036

Cited by 23 publications

(4 citation statements)

References 48 publications

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“…Previous studies have focused on the development of porous piezoelectric materials for hydrostatic sensor applications such as active and passive sensor due to their superior hydrostatic piezoelectric strain ( d h ) and piezoelectric voltage coefficient ( g h ) compared with fully dense piezoelectric materials. Porous piezoelectric materials are lightweight with low acoustic impedance and high voltage sensitivity properties . In this study, the effect of porosity percent on voltage generation from piezoelectric was investigated using COMSOL Multiphysics simulation.…”

Section: Resultsmentioning

confidence: 99%

Improving piezoelectric and pyroelectric properties of electrospun PVDF nanofibers using nanofillers for energy harvesting application

Abbasipour

Khajavi

Yousefi

et al. 2018

Polymers for Advanced Techs

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In this study, it was aimed to increase the piezoelectric and pyroelectric properties of electrospun polyvinylidene fluoride (PVDF) nanofibers simultaneously by using specific nanofillers. Graphene oxide (GO), graphene, and halloysite nanotubes with different concentrations (0, 0.05, 0.4, and 1.6% wt/wt) were combined with PVDF solution and were fabricated in the form of nanofibers through electrospinning. Pyroelectric properties of samples were measured by submerging sealed samples in hot water (360°K) and ice (270°K). The piezoelectric properties of the samples were evaluated through bending tests. The microstructural, mechanical, and thermal properties of the electrospun PVDF nanocomposite were investigated using scanning electron microscope, Instron instrument, and thermogravimetric analysis, respectively. To further support the experimental observations for generating electric voltage in the bended nanogenerator, the PVDF nanogenerator (PNG) was also modeled by a finite element analysis based on the theory of linear piezoelectricity using COMSOL Multiphysics simulation software. Experimental results showed that adding nanofillers could improve the piezoelectric and pyroelectric properties of all samples, associated with the increment of β-phase in the nanofibers. It was concluded that adding nanofillers could increase pyroelectricity about 50% more than piezoelectricity in pristine PVDF nanofiber web. The PNG containing 1.6 wt% GO showed the highest efficiency in terms of piezoelectricity and pyroelectricity. In addition, the results showed that the ratio of piezoelectric to pyroelectric coefficients was constant (~1.5) and it was independent of the nanofiller type and content. The effect of external force and vibration frequency on the output voltage was also investigated. Increasing the compressive force and vibration frequency caused a greater output voltage. Finally, the fabricated nanogenerator was integrated on insole and elbow to investigate its energy harvesting capabilities from body movement.

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Section: Resultsmentioning

confidence: 99%

Improving piezoelectric and pyroelectric properties of electrospun PVDF nanofibers using nanofillers for energy harvesting application

Abbasipour

Khajavi

Yousefi

et al. 2018

Polymers for Advanced Techs

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“…To explore the effect of tailoring the pore architecture across cellular metamaterials on tuning the thermal flow, topology and cell relative density of supershape pores can be graded according to the concept of functionally graded cellular materials (FGCMs) [59,60]. Among all the possibilities, only the effect of pore rotation angle variation on the heat flux and temperature distribution is investigated here.…”

Section: Functionally Graded Cellular Materialsmentioning

confidence: 99%

Thermal conductivity of architected cellular metamaterials

et al. 2019

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“…Liu et al, 2017;Z. Liu et al, 2019;Ngo et al, 2018), Manufacture of sandwich panels (Akbarzadeh et al, 2014;Sarvestani et al, 2018). In this context the search for the use of green materials in order to preserve the environment are created (Gao et al, 2010;Nguyen et al, 2018), one of them the energy saving in printing (Gordeev et al, 2018), so it is necessary a body of knowledge of the factors that can improve the mechanical properties of the printed material, there are numerous process parameters that can be defined in printing using fused deposition modeling (FDM).…”

Section: Introductionmentioning

confidence: 99%

Central composite disigns for optimization of the energy factor in 3D printing

Barbosa,

Peruchi,

Rotella Junior

2023

R. G. Secr.

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This study proposes an optimization strategy to analyze the trade-off between the conflicting objectives of minimizing energy use in 3D printing by fused deposition modeling. The motivation for this work is the need to optimize natural resources, finite in nature, in a more competitive industrial reality and increasingly focused on sustainability, another important point is that energy savings generate improvement in consumption raising organizational profit. The methodologies used were a brief review of the literature and response surface methodology in a CCD experiment. The modeling of the specimen took place through the CAD Fusion 360 software, its development began with the creation of a rectangular 2D sketch, obeying the parameters of 80 mm in its length and 10 mm in width, an Ender 3 printer, yellow PLA, was used following the guidelines set out in ISO 178. Objective of the research is to optimize the manufacturing process using fused deposition modeling, reducing energy consumption (kwh). A complete factorial design was used , as factors: the printing speed (X1), the printing density (X2), layer height (X3) and the layer width (X4), as a response of the experiment were adopted for the manufacturing process, energy (Y). The residue normality tests were performed, with a p-value of 0.170 > 0.05, showing that the data are normal, the VIF below 10 and R-sq (adj) is above 87.16%, the equation has the validated model.

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Dynamic eigenstrain behavior of magnetoelastic functionally graded cellular cylinders

Cited by 23 publications

References 48 publications

Improving piezoelectric and pyroelectric properties of electrospun PVDF nanofibers using nanofillers for energy harvesting application

Improving piezoelectric and pyroelectric properties of electrospun PVDF nanofibers using nanofillers for energy harvesting application

Thermal conductivity of architected cellular metamaterials

Central composite disigns for optimization of the energy factor in 3D printing

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