Numerical framework for anisotropic flexible piezoelectrics with large deformation

Lv, Shihao; Meng, Licheng; Zhang, Qiang; Shi, Yan; Gao, Cun‐Fa

doi:10.1016/j.ijmecsci.2023.108564

Cited by 5 publications

(4 citation statements)

References 69 publications

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“…Based on the Neo-Hookean material model and electromechanical theory, our recent study proposed a novel nonlinear model (Lv et al 2023) to investigate the finite deformation behavior of anisotropic flexible piezoelectric materials. Generally, an anisotropic crack surface density function needs to be introduced to accurately capture the fracture behavior of anisotropic materials (Sridhar and Keip 2019;Tan et al 2022a).…”

Section: Governing Equationsmentioning

confidence: 99%

“…To simplify our analysis, we neglect the anisotropic properties of the flexible material in this study. The energy density has the form of (Lv et al 2023):…”

Section: Governing Equationsmentioning

confidence: 99%

“…Herein, e t B represents the discrete deformable body and satisfies e tt BB =∪ . Particularly, the tangent stiffness metrics Kuu, u K  , u K  and K  have the same expression as described in the literature (Lv et al 2023). However, the first Piola-Kirchhoff stress and electric displacement in Eq.…”

Section: Residuals and Stiffness Matricesmentioning

confidence: 99%

“…Experimental studies have demonstrated that PVDF-based stretchable soft materials exhibit a notable stress-softening phenomenon (Gao and Noda 2004). To elucidate the nonlinear behavior of flexible piezoelectric materials, Lv et al (Lv et al 2023) proposed a nonlinear electromechanical model based on the Neo-Hookean material model and electromechanical theory. This model provides valuable insights into the electromechanical coupling and nonlinear mechanical response of these materials.…”

Section: Introductionmentioning

confidence: 99%

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Phase field fracture modelling of flexible piezoelectric materials considering different electrical boundary conditions

Lv,

Li,

Shi

et al. 2024

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Flexible piezoelectric materials have gained considerable attention due to their remarkable properties, including electromechanical coupling and high stretchability. These materials have found extensive applications in the field of flexible electronic devices. However, the issue of fracture in flexible piezoelectrics cannot be ignored. In general, these flexible/stretchable materials experience fractures when subjected to significant deformation. While previous studies have primarily focused on fracture problems of brittle piezoelectric materials with low failure strain. There is a need to investigate the fracture behavior of flexible piezoelectrics with finite deformation. Within the framework of the phase field method, this work addresses the fracture of flexible piezoelectrics utilizing a nonlinear electromechanical material model. To solve the coupled governing equations, a residual controlled staggered algorithm (RCSA) is employed in the user element subroutine of commercial software ABAQUS. By utilizing the phase field method and a nonlinear electromechanical material model, this study provides insights into the fracture mechanisms and the effects of various factors on the fracture behavior of these materials. Specifically, the effects of external electric fields, displacements, and various electrical boundary conditions across the crack are investigated. This research contributes to a better understanding of flexible piezoelectric materials and can aid in the development of strategies to enhance their fracture resistance and durability in practical applications.

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Section: Governing Equationsmentioning

confidence: 99%

“…To simplify our analysis, we neglect the anisotropic properties of the flexible material in this study. The energy density has the form of (Lv et al 2023):…”

Section: Governing Equationsmentioning

confidence: 99%

Section: Residuals and Stiffness Matricesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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