scholarly journals Antiplane magneto-electro-elastic effective properties of three-phase fiber composites

2014 ◽  
Vol 51 (21-22) ◽  
pp. 3508-3521 ◽  
Author(s):  
Y. Espinosa-Almeyda ◽  
R. Rodríguez-Ramos ◽  
R. Guinovart-Díaz ◽  
J. Bravo-Castillero ◽  
J.C. López-Realpozo ◽  
...  
Keyword(s):  
Effective Properties ◽  
Fiber Composites ◽  
Three Phase

scholarly journals Effective Complex Properties for Three-Phase Elastic Fiber-Reinforced Composites with Different Unit Cells

Technologies ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 12
Author(s):  
Federico J. Sabina ◽  
Yoanh Espinosa-Almeyda ◽  
Raúl Guinovart-Díaz ◽  
Reinaldo Rodríguez-Ramos ◽  
Héctor Camacho-Montes
Keyword(s):  
Effective Properties ◽  
Elastic Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Effective Coefficients ◽  
Three Phase ◽  
Out Of Plane ◽  
Local Problems ◽  
Unit Cells

The development of micromechanical models to predict the effective properties of multiphase composites is important for the design and optimization of new materials, as well as to improve our understanding about the structure–properties relationship. In this work, the two-scale asymptotic homogenization method (AHM) is implemented to calculate the out-of-plane effective complex-value properties of periodic three-phase elastic fiber-reinforced composites (FRCs) with parallelogram unit cells. Matrix and inclusions materials have complex-valued properties. Closed analytical expressions for the local problems and the out-of-plane shear effective coefficients are given. The solution of the homogenized local problems is found using potential theory. Numerical results are reported and comparisons with data reported in the literature are shown. Good agreements are obtained. In addition, the effects of fiber volume fractions and spatial fiber distribution on the complex effective elastic properties are analyzed. An analysis of the shear effective properties enhancement is also studied for three-phase FRCs.

Design of Energy Absorbing Structure Using Topology Optimization With a Multi-Material Model

2003 ◽  
Author(s):  
Daeyoon Jung ◽  
Hae Chang Gea
Keyword(s):  
Topology Optimization ◽  
Strain Energy ◽  
Effective Properties ◽  
Service Condition ◽  
Material Model ◽  
Three Phase ◽  
The Mean ◽  
Energy Absorbing ◽  
Dual Objectives ◽  
Mean Compliance

To accommodate the dual objectives of many engineering applications, one to minimize the mean compliance for the stiffest structure under normal service condition and the other to maximize the strain energy for energy absorption during excessive loadings, topology optimization with a multi-material model is applied to the design of energy absorbing structure in this paper. The effective properties of the three-phase material are derived using a spherical micro-inclusion model. The dual objectives are combined in a ratio formation. Numerical examples from the proposed method are presented and discussed.

Effective properties of three-phase materials

1974 ◽  
Vol 7 (4) ◽  
pp. 281-294 ◽  
Author(s):  
M.A. Elsayed ◽  
J.J. McCoy
Keyword(s):  
Effective Properties ◽  
Three Phase

Effective properties of coated fiber composites with piezoelectric and piezomagnetic phases

2016 ◽  
Vol 28 (1) ◽  
pp. 97-107 ◽  
Author(s):  
Jan Sladek ◽  
Vladimir Sladek ◽  
Ernian Pan
Keyword(s):  
Effective Properties ◽  
Coating Layer ◽  
Circular Cross Section ◽  
Fiber Composites ◽  
The Finite Element Method ◽  
Coated Fiber ◽  
Material Parameters ◽  
Effective Material Properties ◽  
Geometrical Information ◽  
Piezoelectric Fiber

The finite element method is proposed to analyze coated fiber composites with piezoelectric and piezomagnetic phases. The computational homogenization technique is applied for fiber composites with magnetoelectroelastic properties to determine effective material parameters. The evolution of the magnetoelectroelastic fields at the macroscopic level is resolved through the incorporation of the microstructural response. The microstructural analyses are performed on the representative volume element, where essential physical geometrical information about the microstructural components is included. Circular cross section of fibers is considered in numerical analyses. A thin coating layer is considered on the surface of the piezoelectric fiber which is embedded in the piezomagnetic matrix. Influence of the coating layer on the effective material properties is analyzed.

Electro-mechanical moduli of three-phase fiber composites

2008 ◽  
Vol 62 (16) ◽  
pp. 2385-2387 ◽  
Author(s):  
Raúl Guinovart-Díaz ◽  
Reinaldo Rodríguez-Ramos ◽  
Julián Bravo-Castillero ◽  
Federico J. Sabina ◽  
Hector Camacho-Montes
Keyword(s):  
Fiber Composites ◽  
Three Phase

Development of a PZT Fiber/Piezo-Polymer Composite Actuator With Interdigitated Electrodes

2001 ◽  
Author(s):  
Cheol Kim ◽  
Kun-Hyung Koo
Keyword(s):  
Composite Plate ◽  
Effective Properties ◽  
Fiber Composite ◽  
Matrix Material ◽  
Three Dimensional ◽  
Fiber Composites ◽  
Numerical Analyses ◽  
Interdigitated Electrodes ◽  
Composite Actuator ◽  
Piezoelectric Fiber

Abstract Piezoelectric Fiber Composites with Interdigitated Electrodes (PFCIDE) were previously introduced as an alternative to monolithic wafers with conventional electrodes for applications of structural actuation. This paper is an investigation into the performance improvement of piezoelectric fiber composite actuators by changing the matrix material. This paper presents a modified micro-electromechanical model and numerical analyses of piezoelectric fiber/piezopolymer matrix composite actuator with interdigitated electrodes (PFPMIDE). Various concepts from different backgrounds including three-dimensional linear elastic and dielectric theories have been incorporated into the present linear piezoelectric model. The rule of mixture and the modified method to calculate effective properties of fiber composites were extended to apply to the PFPMIDE model. The new model was validated comparing with available experimental data and other analytical results. To see the structural responses of a composite plate integrated with the PFPMIDE, three-dimensional finite element formulations were derived. Numerical analyses show that the shape of the graphite/epoxy composite plate with the PFPMIDE may be controlled by judicious choice of voltages, piezoelectric fiber angles, and elastic tailoring of the composite plate.

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