A capacitive model for dielectric breakdown in polymer materials

Quiña, Pablo L. Dammig; Herrera, Luis A.; Irurzun, I. M.; Mola, E. E.

doi:10.1016/j.commatsci.2008.03.029

Cited by 6 publications

(2 citation statements)

References 27 publications

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“…The continuous PD activity may modify the dielectric properties of solid dielectric materials making them less effective as electrical insulators. In spite of different chemical composition and morphology among the insulating polymeric materials, they shared a similar behavior to the breakdown previously described by [ 10 ].…”

Section: Introductionsupporting

confidence: 70%

An Improved Physical-Stochastic Model for Simulating Electrical Tree Propagation in Solid Polymeric Dielectrics

2020

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The dielectric breakdown of solid polymeric materials is due to the inception and propagation of electrical trees inside them. The remaining useful life of the solid dielectrics could be determined using propagation simulations correlated with non-intrusive measurements such as partial discharges (PD). This paper presents a brief review of the different models for simulating electrical tree propagation in solid dielectrics. A novel improved physical-stochastic model is proposed, which allows quantitatively and qualitatively analyzing the electrical tree propagation process in polymeric dielectrics. Simulation results exhibit good agreement with measurements presented in the literature. It is concluded that the model allows adequately predicting the tree propagation behavior and additional experimental analyses are required in order to improve the model accuracy.

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Section: Introductionsupporting

confidence: 70%

An Improved Physical-Stochastic Model for Simulating Electrical Tree Propagation in Solid Polymeric Dielectrics

2020

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“…Several other models are similar in nature in that they use networks of circuit components to model breakdown. These network models use fuse-like components that are destroyed when subjected to high fields [Joshi et al 2002;Boksiner and Leath 2003;Quiña et al 2008]. In addition to simulation methods, a simple relation between breakdown strength and a material's elastic properties can be derived, giving a rough estimate of electromechanical breakdown strength [Zebouchi and Malec 1998].…”

Section: Introductionmentioning

confidence: 99%

A dynamic electro-thermo-mechanical model of dielectric breakdown in solids using peridynamics

Wildman

Gazonas

2015

J. Mech. Mater. Struct.

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The electro-thermo-mechanical breakdown of dielectric solids is modeled using peridynamics to describe the brittle fracture of a material under high electric fields. A coupled electrostatic, elastodynamic, thermodynamic model is used wherein electrostatic forces are computed and applied to the mechanical model and temperature effects are included. Fracture is simulated using peridynamics, a reformulation of elasticity that incorporates material failure. Coupling occurs between the electrostatic and mechanical forces and also the electrical material properties: specifically, the Lorentz and Kelvin forces are used to couple the electrostatic fields to the stress fields, conductivity is treated as nonlinear and a function of temperature, and mechanical damage is used to alter the permittivity. Results demonstrate that the method is capable of reproducing branching breakdown patterns seen in experiments using a deterministic method.

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Dielectric breakdown performance of alumina/epoxy resin nanocomposites under high voltage application

Mohanty

Srivastava

2013

Materials & Design

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A capacitive model for dielectric breakdown in polymer materials

Cited by 6 publications

References 27 publications

An Improved Physical-Stochastic Model for Simulating Electrical Tree Propagation in Solid Polymeric Dielectrics

An Improved Physical-Stochastic Model for Simulating Electrical Tree Propagation in Solid Polymeric Dielectrics

A dynamic electro-thermo-mechanical model of dielectric breakdown in solids using peridynamics

Dielectric breakdown performance of alumina/epoxy resin nanocomposites under high voltage application

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