In this paper, the Saint-Venant torsion of a circular bar reinforced by a magneto-electro-elastic coating containing multiple cracks is analyzed. Pure Mode III stress intensity factors are studied in this paper. An electric displacement and a magnetic induction are applied to the outer edge of the magneto-electro-elastic coating. The stress field of the circular bar coated by the magneto-electro-elastic layer containing a screw dislocation is first found in terms of the dislocation density using finite Fourier transform. Then, the stress field is reduced to a set of Cauchy-type integral equations in the circular cross-section with the magneto-electro-elastic layer using the distributed dislocation method. The torsional rigidity of the cracked domain and the stress intensity factors (SIFs) are found by a numerical procedure of this type of integral equation. Several numerical examples are presented to check the effect of the magneto-electro-elastic layer and critical parameters on the stress intensity factors and torsional rigidity. In addition, the stress intensity factors can be eliminated using appropriate values of the electric displacement and magnetic induction.
机构:
Amir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, IranAmir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, Iran
Faal, Reza Teymori
Fariborz, Shahriar J.
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机构:
Amir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, IranAmir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, Iran
Fariborz, Shahriar J.
Daghyani, Hamid Reza
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h-index: 0
机构:
Amir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, IranAmir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, Iran
机构:
Amir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, IranAmir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, Iran
Faal, Reza Teymori
Fariborz, Shahriar J.
论文数: 0引用数: 0
h-index: 0
机构:
Amir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, IranAmir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, Iran
Fariborz, Shahriar J.
Daghyani, Hamid Reza
论文数: 0引用数: 0
h-index: 0
机构:
Amir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, IranAmir Kabir Univ Technol, Tehran Polytech, Dept Mech Engn, Tehran 158754413, Iran