Design of piezocomposite materials and piezoelectric transducers using topology optimization—Part I

Silva, E. C. Nelli; Fonseca, Jun Sergio Ono; Espinosa, F. Montero de; Crumm, Aaron T.; Brady, G. Allen; Halloran, John W.; Kikuchi, Noboru

doi:10.1007/bf02736183

Cited by 63 publications

(8 citation statements)

References 48 publications

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“…In this study, the homogenization method incorporated with FEM is used to evaluate the effective material properties of porous PZT. The details of the formulation can be found in the references [16,17] and are summarized in the appendix. Here, the resulting equations to evaluate macroscopic material properties are given.…”

Section: Outline Of the Homogenization Methods For The Evaluation Of ...mentioning

confidence: 99%

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An iterative solver applied to strongly coupled piezoelectric problems of porous Pb(Zr,Ti)O₃with nondestructive modelling of microstructure

Asai

Takano

Uetsuji

et al. 2007

Modelling Simul. Mater. Sci. Eng.

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A new preconditioned iterative solver based on the Kryrov subspace method is developed for solving large-scale finite element (FE) models of piezoelectric problems. The system matrix of piezoelectric FE analysis has negative eigenvalues because of coupling terms between mechanical and electrical fields. A general preconditioned iterative solver is ineffective for large-scale piezoelectric FE analysis due to the indefinite system matrix. A block diagonal preconditioner for the piezoelectric finite element method (FEM) is proposed by grouping nodal values as a block. Then the proposed solver is applied to the homogenization method, which can evaluate the effective macroscopic material properties by using FEM. In the FE modelling of complex microstructures, a semi-automatic technique with nondestructive observation provides reasonable 3D micrographs of porous Pb(Zr,Ti)O3 (PZT). The efficiency of the proposed solver is investigated through the homogenization analysis of real porous PZT samples.

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Section: Outline Of the Homogenization Methods For The Evaluation Of ...mentioning

confidence: 99%

“…The advantage is robustness in application to periodic heterogeneous materials composed of complex microstrucures. The homogenization method has been developed to solve nonlinear problems [11][12][13], solid-fluid coupling problems [14,15] and piezoelectric problems [16,17].…”

Section: Introductionmentioning

confidence: 99%

An iterative solver applied to strongly coupled piezoelectric problems of porous Pb(Zr,Ti)O₃with nondestructive modelling of microstructure

Asai

Takano

Uetsuji

et al. 2007

Modelling Simul. Mater. Sci. Eng.

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“…The first digit references the piezoelectric phase and the second digit references the polymer phase. Out of 10 conventional different combinations of connectivity [81,82], piezoelectric 1-3 [9,13] and 2-2 [14] composites are commonly used in transducer technology and are proven to exhibit high coupling coefficient with low-acoustic impedance and low stiffness, leading to improved sensitivity compared to monolithic piezo-materials [62,83]. Structural schematics of 1-3 and 2-2 piezo-composites are shown in Figure 1b.…”

Section: Piezoelectric Transducersmentioning

confidence: 99%

Overview of Ultrasound Detection Technologies for Photoacoustic Imaging

2020

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Ultrasound detection is one of the major components of photoacoustic imaging systems. Advancement in ultrasound transducer technology has a significant impact on the translation of photoacoustic imaging to the clinic. Here, we present an overview on various ultrasound transducer technologies including conventional piezoelectric and micromachined transducers, as well as optical ultrasound detection technology. We explain the core components of each technology, their working principle, and describe their manufacturing process. We then quantitatively compare their performance when they are used in the receive mode of a photoacoustic imaging system.

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“…The relation between microstructure and effective material properties was estimated by the self-consistent approach for poled piezoelectric polycrystalline ceramics and thin fi lms [16]. For linear piezoelectric problem, new computational approaches, such as meshless, extended fi nite element methods [17,18], and scale-bridging method [19] were proposed. Especially, although limited in scale-bridging method, the applications to polycrystalline piezoelectric ceramics were reported [20,21].…”

Section: Introductionmentioning

confidence: 99%

Electron backscatter diffraction crystal morphology analysis and multiscale simulation of piezoelectric materials

Uetsuji¹,

Kuramae²,

Tsuchiya³

et al. 2013

Int. J. CMEM

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A computational approach based on electron backscatter diffraction (EBSD) measurement was proposed to estimate the effects of crystal morphology on the overall response of polycrystalline piezoelectric ceramics. EBSD-measured crystal orientations of a polycrystalline piezoelectric ceramic, barium titanate, were applied to a multiscale fi nite element simulation based on asymptotic homogenization theory. First, the orientation dependence of material properties, such as elastic compliance constants, dielectric and piezoelectric strain constants, was discussed for a single-domain crystal of tetragonal perovskite structure. The computation indicated that piezoelectric strain constants are more sensitive to crystal orientation compared with other properties. Then the single-crystalline material properties were introduced into multidirectionally oriented grains in the polycrystalline microstructure, the multiscale fi nite element analysis between macrostructure and EBSD-measured microstructure was performed. In this paper emphasis was placed on the diminution of microstructure. The authors discussed about the adverse effect on each component of macrostructural homogenized material properties, which is useful for micromechanics approaches.

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Design of piezocomposite materials and piezoelectric transducers using topology optimization—Part I

Cited by 63 publications

References 48 publications

An iterative solver applied to strongly coupled piezoelectric problems of porous Pb(Zr,Ti)O₃with nondestructive modelling of microstructure

An iterative solver applied to strongly coupled piezoelectric problems of porous Pb(Zr,Ti)O₃with nondestructive modelling of microstructure

Overview of Ultrasound Detection Technologies for Photoacoustic Imaging

Electron backscatter diffraction crystal morphology analysis and multiscale simulation of piezoelectric materials

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Design of piezocomposite materials and piezoelectric transducers using topology optimization—Part I

Cited by 63 publications

References 48 publications

An iterative solver applied to strongly coupled piezoelectric problems of porous Pb(Zr,Ti)O3with nondestructive modelling of microstructure

An iterative solver applied to strongly coupled piezoelectric problems of porous Pb(Zr,Ti)O3with nondestructive modelling of microstructure

Overview of Ultrasound Detection Technologies for Photoacoustic Imaging

Electron backscatter diffraction crystal morphology analysis and multiscale simulation of piezoelectric materials

Contact Info

Product

Resources

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An iterative solver applied to strongly coupled piezoelectric problems of porous Pb(Zr,Ti)O₃with nondestructive modelling of microstructure

An iterative solver applied to strongly coupled piezoelectric problems of porous Pb(Zr,Ti)O₃with nondestructive modelling of microstructure