BEM for Contact Problems

Gwinner, Joachim; Stephan, Ernst P.

doi:10.1007/978-3-319-92001-6_11

Cited by 2 publications

(2 citation statements)

References 50 publications

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“…These started several decades ago with finite elements discretization [32,33] and solving in codes like FEAP [34][35][36] or discrete elements simulations using the LMGC90 open platform or MULTICOR software [37][38][39][40] but in the recent years the continuous advance of computer technology and the leap in performance and processing power allows to model, analyze, optimize and solve more and more complex problems of electrical contact systems. Nowadays, the numerical methods use dedicated engineering computer software, and are based on various techniques such as the boundary element method (BEM) [41][42][43], finite element method (FEM) [44][45][46] or coupled/multiphysics methods [47][48][49] to model and simulate contact behavior.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

Andras,

Popescu,

Radu

et al. 2024

Preprint

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Electrical contacts are important circuit components with diverse industrial applications, and their failure can lead to multiple unwanted effects. Hence, the behavior of electrical contacts is a widely studied topic in scientific literature based on various approaches, tools, and techniques. The present study proposes a numerical modeling and simulation approach based on the Holm contact theory to study the dependence between the electric potential and the temperature within an electrical contact. Structured in 5 sections, the research was conducted using COMSOL Multiphysics software and its solid-state mechanics, electric current, and heat transfer modules in order to highlight contact behavior from mechanical, electrical and thermal points of view: the von Mises stress, contact force, the electric field amplitude, the variation of the electrical potential along the current path, the temperature gradient, and dependence of temperature along the contact elements edges were obtained by simulation and graphically represented. The results are in line with the expectations and with past research that was studied in the literature review.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

Andras,

Popescu,

Radu

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…These started several decades ago with finite elements discretization [32,33] and solving in codes like FEAP [34][35][36] or discrete elements simulations using the LMGC90 open platform or MULTICOR software [37][38][39][40], but in recent years the continuous advancement of computer technology and the leaps in performance and processing power have allowed us to model, analyze, optimize and solve more and more complex problems of electrical contact systems. Nowadays, the numerical methods use dedicated engineering computer software, and are based on various techniques such as the boundary element method (BEM) [41][42][43], finite element method (FEM) [44][45][46] and coupled/multiphysics methods [47][48][49][50] to model and simulate contact behavior.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

Andras,

Popescu,

Radu

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

Electrical contacts are important circuit components with diverse industrial applications, and their failure can lead to multiple unwanted effects. Hence, the behavior of electrical contacts is a widely studied topic in the scientific literature based on various approaches, tools, and techniques. The present study proposes a new approach to numerical modeling and simulation based on the Holm contact theory, aiming to study the dependence between the electric potential and the temperature within an electrical contact. Structured in five sections, the research was conducted using COMSOL Multiphysics software and its solid-state mechanics, electric current, and heat transfer modules in order to highlight contact behavior from mechanical, electrical and thermal points of view: the von Mises stress, contact force, electric field amplitude, variation of the electrical potential along the current path, temperature gradient, and dependence of temperature along the contact elements edges were obtained by simulation, and are graphically represented. The results show that the temperature increase follows a parabolic curve, and that for values higher than 4 mV of voltage drop, the temperature of the contact increases to 79.25 degrees (and up to 123.81 degrees for 5 mV) over the ambient temperature, thus the integrity of insulation can be compromised. These values are close (10–12%) to the analytically calculated ones, and also in line with research assessed in the literature review.

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BEM for Contact Problems

Cited by 2 publications

References 50 publications

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

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