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

Wildman, Raymond A.; Gazonas, George A.

doi:10.2140/jomms.2015.10.613

Cited by 20 publications

(4 citation statements)

References 41 publications

(24 reference statements)

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“…To address the technical difficulties in the simulation of explosion-induced fragmentation, coupled PD-smoothed particle hydrodynamics (SPH) formulations have been developed [75,76]. PD has also been applied in the context of electrothermomechanics, for instance to model dielectric breakdown in solids [77]. The works of Prakash et al [78] illustrate the application of electromechanical PD to study composite materials.…”

Section: General Coupling Techniquesmentioning

confidence: 99%

Peridynamics review

Javili

Morasata

Öterkuş

et al. 2018

Mathematics and Mechanics of Solids

242

109

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Peridynamics (PD) is a novel continuum mechanics theory established by Stewart Silling in 2000. The roots of PD can be traced back to the early works of Gabrio Piola according to dell’Isola et al. PD has been attractive to researchers as it is a non-local formulation in an integral form, unlike the local differential form of classical continuum mechanics. Although the method is still in its infancy, the literature on PD is fairly rich and extensive. The prolific growth in PD applications has led to a tremendous number of contributions in various disciplines. This manuscript aims to provide a concise description of the PD theory together with a review of its major applications and related studies in different fields to date. Moreover, we succinctly highlight some lines of research that are yet to be investigated.

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Section: General Coupling Techniquesmentioning

confidence: 99%

Peridynamics review

Javili

Morasata

Öterkuş

et al. 2018

Mathematics and Mechanics of Solids

242

109

View full text Add to dashboard Cite

show abstract

“…The breakdown of solid dielectrics occurs due to the propagation of plasma channels in the solid. The propagation of plasma channels is considered to be due to electromechanical and electrothermal instabilities as well as ionization processes, in turn, produced by the dynamic behavior of electric fields, charge and energy within the channels and the dielectric material [ 40 ].…”

Section: Brief Review Of Current Models For Simulating the Propagamentioning

confidence: 99%

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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“…The breakdown process of oil-impregnated paper was very complex, involving thermal, electrical and mechanical factors [18,25]. According to Figures 2 and 4, breakdown voltages at −20 °C and 0 °C were hardly influenced by temperature.…”

Section: Electro-thermal Breakdown Simulationmentioning

confidence: 99%

A Combined Electro-Thermal Breakdown Model for Oil-Impregnated Paper

Huang

Zhou

et al. 2017

Energies

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Abstract:The breakdown property of oil-impregnated paper is a key factor for converter transformer design and operation, but it is not well understood. In this paper, breakdown voltages of oil-impregnated paper were measured at different temperatures. The results showed that with the increase of temperature, electrical, electro-thermal and thermal breakdown occurred successively. An electro-thermal breakdown model was proposed based on the heat equilibrium and space charge transport, and negative differential mobility was introduced to the model. It was shown that carrier mobility determined whether it was electrical or thermal breakdown, and the model can effectively explain the temperature-dependent breakdown.

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

Cited by 20 publications

References 41 publications

Peridynamics review

Peridynamics review

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

A Combined Electro-Thermal Breakdown Model for Oil-Impregnated Paper

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