]> 2026-04-11T19:50:29-03:00 Energy-based models for the magneto-elastic behavior of ferromagnetic materials 0 pt-br engenharia eletrica Bernard, Laurent Daniel, Laurent Universidade Federal de Santa Catarina. o Programa de Pós-Graduação em Engenharia Elétrica Silva, Luiz Guilherme Luttke Gonçalves da 2024 2460310.5 180 p. Inglês Luiz Guilherme Luttke Gonc¸alves da Silva ; orientadores, Laurent Bernard, Laurent Daniel Energy-based models for the magneto-elastic behavior of ferromagnetic materials B000155 2024-10-14T19:52:31Z 2460598.3281366 Energy-based models for the magneto-elastic behavior of ferromagnetic materials 2024-10-14T19:52:31Z 2460598.3281366 Energy-based models for the magneto-elastic behavior of ferromagnetic materials 0 0 plainlist 1 [[:B000155]] Energy-based models for the magneto-elastic behavior of ferromagnetic materials# QUERY1864904e63b759d1f63a67ee2b0ddd44 0 0 plainlist 1 [[:B000155#245]] Energy-based models for the magneto-elastic behavior of ferromagnetic materials# QUERYa9f3a1b483e894aa7a473cfbbd29a254 0 0 plainlist 1 [[:B000155#250]] Energy-based models for the magneto-elastic behavior of ferromagnetic materials# QUERY5b46e96b5fe8fe101033ffd746d59baf 0 0 plainlist 1 [[:B000155#300]] Energy-based models for the magneto-elastic behavior of ferromagnetic materials# 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Energy-based models for the magneto-elastic behavior of ferromagnetic materials# QUERY2669beebb3bf69a0e5bdf888aad1c58c 0 00277 001000800000003000900008005001700017008004100034040003800075090002700113100004700140245020100187260001000388300001800398500004400416502007300460502020400533504002500737520206600762520271802828650002505546700003405571700003305605710010005638856006905738 06085ntm a2200277 a 4500 06085 000 0 B000155 001 0 BR-FlWIK 003 0 20241014165231.0 005 0 241014s2024    scba   gsm    000 0 eng d 008 0 ##$a BR-FlWIK $b por $c BR-FlWIK $d BR-FlUSC 040 0 ##$a CETD $b UFSC $c PEEL $d 2191 090 0 1#$a Silva, Luiz Guilherme Luttke Gonçalves da 100 0 10$a Energy-based models for the magneto-elastic behavior of ferromagnetic materials $h [recurso eletrônico] / $c Luiz Guilherme Luttke Gonc¸alves da Silva ; orientadores, Laurent Bernard, Laurent Daniel 245 0 ##$c 2024. 260 0 ##$a 180 p. : $b il. 300 0 ##$a Disponível somente em versão on-line. 500 0 ##$a Tese (doutorado) – Université Paris-Saclay, Gif-sur-Yvette, 2024. ##$a Tese de Doutoramento em Engenharia Elétrica em acordo de cotutela entre a Université Paris-Saclay e o Programa de Pós-Graduação em Engenharia Elétrica da Universidade Federal de Santa Catarina. 502 0 ##$a Inclui referências. 504 0 8#$a Abstract: Ferromagnetic materials exhibit magnetization and magnetostriction strain that are highly dependent on the magnetic field and mechanical stress loadings. This coupled behavior can be used to design magnetic sensors for non-destructive evaluation and high-efficiency electrical machines. Some features of the magnetic behavior are hysteresis, anisotropy, and dependency on the mechanical state. Experimental measurements evidence the influence of mechanical loadings on magnetization and magnetostriction strain, and different behaviors are observed when applying static or variable magneto-elastic loadings. This work aims to propose a magneto-elastic hysteresis model in which limitations usually found in literature models are covered. The modeling is made by associating an anhysteretic multiscale model with an energy-based hysteresis approach. The material parameters for reversible and irreversible behaviors are identified from uniaxial characterization under mechanical stress. In addition, further experimental results are presented for various magneto-elastic loadings to test the modeling prediction capabilities. The model is first developed to represent the magneto-elastic behavior under constant stress, taking into account the multiaxiality of the loading, the crystallographic texture effects, the stress effect on the coercive field, the non-monotonic behavior of permeability as a function of stress, and the vanishing of hysteresis losses under rotating field close to saturation. The model is analyzed in several complex configurations with satisfactory results. A similar approach is developed to represent the magneto-elastic hysteresis at constant field and variable stress. These two energy-based models are thermodynamically consistent, with parameters identified from uniaxial measurements, and can represent the magnetic behavior in complex (3D) configurations. Lastly, two models are proposed to consider simultaneous variations in field and stress. Their limitations are discussed, but left as perspectives for this work. ##$a Os materiais ferromagneticos apresentam magnetizac¸ ´ ao e deformac¸ ˜ ao de magnetos- ˜ tric¸ao que dependem fortemente do campo magn ˜ etico e da tens ´ ao mec ˜ anica. Esse compor- ˆ tamento acoplado pode ser utilizado para projetar sensores magneticos para avaliac¸ ´ ao n ˜ ao- ˜ destrutiva, e maquinas el ´ etricas de alta efici ´ encia. Algumas caracter ˆ ´ısticas do comportamento magnetico s ´ ao a histerese, a anisotropia e a sensibilidade ao estado mec ˜ anico. Medic¸ ˆ oes experi- ˜ mentais evidenciam a influencia dos carregamentos mec ˆ anicos na magnetizac¸ ˆ ao e na deformac¸ ˜ ao˜ de magnetostric¸ao, e diferentes comportamentos s ˜ ao observados quando se aplicam cargas ˜ magneto-elasticas est ´ aticas ou din ´ amicas. Este trabalho tem como objetivo propor um modelo ˆ de histerese magneto-elastica no qual as limitac¸ ´ oes normalmente encontradas em modelos da ˜ literatura sao tratadas. A modelagem ˜ e feita pela associac¸ ´ ao de um modelo anister ˜ etico multies- ´ cala com uma abordagem energetica da histerese magn ´ etica. Os par ´ ametros do modelo para os ˆ comportamentos revers´ıveis e irrevers´ıveis sao identificados a partir da caracterizac¸ ˜ ao uniaxial ˜ sob tensoes mec ˜ anicas. Al ˆ em disso, s ´ ao apresentados resultados experimentais sob diversos ˜ carregamentos magneto-elasticos de forma a testar as capacidades preditivas da modelagem. O ´ modelo e inicialmente desenvolvido para representar o comportamento magneto-el ´ astico sob ´ tensao mec ˜ anica constante, levando em conta o car ˆ ater multiaxial dos carregamentos, os efeitos ´ da textura cristalografica, o efeito da tens ´ ao mec ˜ anica no campo coercitivo, o comportamento ˆ nao-monot ˜ onico da permeabilidade em func¸ ˆ ao da tens ˜ ao mec ˜ anica, e a queda das perdas por his- ˆ terese sob campo girante proximo ´ a saturac¸ ` ao. O modelo ˜ e analisado em diversas configurac¸ ´ oes ˜ complexas com resultados satisfatorios. Uma abordagem semelhante ´ e desenvolvida para repre- ´ sentar a histerese magneto-elastica sob campo magn ´ etico constante e tens ´ ao mec ˜ anica vari ˆ avel. ´ Esses dois modelos baseados no balanc¸o energetico s ´ ao termodinamicamente consistentes, com ˜ parametros identificados a partir de medic¸ ˆ oes uniaxiais, e podem representar o comportamento ˜ magnetico em configurac¸ ´ oes complexas (3D). Por fim, dois modelos s ˜ ao propostos para con- ˜ siderar variac¸oes simult ˜ aneas no campo magn ˆ etico e na tens ´ ao mec ˜ anica. Suas limitac¸ ˆ oes s ˜ ao˜ discutidas, e poss´ıveis melhorias sao apresentadas como perspectivas para este trabalho. 520 0 04$a Engenharia Elétrica 650 0 1#$a Bernard, Laurent, $e orientador 1#$a Daniel, Laurent, $e orientador 700 0 1#$a Universidade Federal de Santa Catarina. $b o Programa de Pós-Graduação em Engenharia Elétrica 710 0 40$z Versão integral em pdf $u https://bu.ufsc.br/teses/PEEL2191-T.pdf 856