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Electric and magnetic polarization saturations for a thermally loaded penny-shaped crack in a magneto-electro-thermo-elastic medium

Li, P-D ; Li, X-Y ; Kang, G-Z ; Müller, R (2017)
Electric and magnetic polarization saturations for a thermally loaded penny-shaped crack in a magneto-electro-thermo-elastic medium.
In: Smart Materials and Structures, 26 (9)
doi: 10.1088/1361-665X/aa811f
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

This paper is devoted to investigating the thermal-induced electric and magnetic polarization saturations (PS) at the tip of a penny-shaped crack embedded in an infinite space of magnetoelectro-thermo-elastic medium. In view of the symmetry with respect to the cracked plane, this crack problem is formulated by a mixed boundary value problem. By virtue of the solution to the Abel type integral equation, the governing equations corresponding to the present problem are analytically solved and the generalized crack surface displacement and field intensity factors are obtained in closed-forms. Applying the hypothesis of the electric and magnetic PS model to the analytical results, the sizes of the electric and magnetic yielding zones are determined. Numerical calculations are carried out to reveal the influences of the thermal load and the electric and magnetic yielding strengths on the results, and to show the distributions of the electric and magnetic potentials on the crack surfaces. It is found that the sizes of electric and magnetic yielding zones are mainly dependent on the electric and magnetic yielding strengths, respectively. Since the multi-ferroic media are widely used in various complex thermal environments, the present work could serve as a reference for the designs of various magnetoelectric composite structures.

Typ des Eintrags: Artikel
Erschienen: 2017
Autor(en): Li, P-D ; Li, X-Y ; Kang, G-Z ; Müller, R
Art des Eintrags: Bibliographie
Titel: Electric and magnetic polarization saturations for a thermally loaded penny-shaped crack in a magneto-electro-thermo-elastic medium
Sprache: Englisch
Publikationsjahr: September 2017
Verlag: IOP
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Smart Materials and Structures
Jahrgang/Volume einer Zeitschrift: 26
(Heft-)Nummer: 9
DOI: 10.1088/1361-665X/aa811f
URL / URN: https://iopscience.iop.org/article/10.1088/1361-665X/aa811f
Kurzbeschreibung (Abstract):

This paper is devoted to investigating the thermal-induced electric and magnetic polarization saturations (PS) at the tip of a penny-shaped crack embedded in an infinite space of magnetoelectro-thermo-elastic medium. In view of the symmetry with respect to the cracked plane, this crack problem is formulated by a mixed boundary value problem. By virtue of the solution to the Abel type integral equation, the governing equations corresponding to the present problem are analytically solved and the generalized crack surface displacement and field intensity factors are obtained in closed-forms. Applying the hypothesis of the electric and magnetic PS model to the analytical results, the sizes of the electric and magnetic yielding zones are determined. Numerical calculations are carried out to reveal the influences of the thermal load and the electric and magnetic yielding strengths on the results, and to show the distributions of the electric and magnetic potentials on the crack surfaces. It is found that the sizes of electric and magnetic yielding zones are mainly dependent on the electric and magnetic yielding strengths, respectively. Since the multi-ferroic media are widely used in various complex thermal environments, the present work could serve as a reference for the designs of various magnetoelectric composite structures.

Zusätzliche Informationen:

Artikel-ID: 095049

Fachbereich(e)/-gebiet(e): 13 Fachbereich Bau- und Umweltingenieurwissenschaften
13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik
13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik > Fachgebiet Kontinuumsmechanik
Hinterlegungsdatum: 03 Mai 2022 08:49
Letzte Änderung: 03 Mai 2022 08:49
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