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Wyszukujesz frazę "mode-III crack" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    A mode-III crack with variable surface effects
    Autorzy:
    Wang, X.
    Schiavone, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/282009.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    surface elasticity
    variable surface moduli
    mode-III crack
    Cauchy singular integro-differential equation
    Opis:
    We study the contribution of variable surface effects to the antiplane deformation of a linearly elastic material with a mode-III crack. The surface elasticity is incorporated using a modified version of the continuum based surface/interface model of Gurtin and Murdoch. In our discussion, the surface moduli are not constant but vary along the crack surfaces. Using Green’s function method, the problem is reduced to a single first-order Cauchy singular integro-differential equation, which is solved numerically using Chebyshev polynomials and a collocation method. Our results indicate that the gradient of the surface shear modulus exerts a significant influence on the crack opening displacement and on the singular stress field at the crack tips.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2016, 54, 4; 1319-1327
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An interface crack with mixed electro-magnetic conditions at it faces in a piezoelectric / piezomagnetic bimaterial under anti-plane mechanical and in-plane electric loadings
    Autorzy:
    Onopriienko, O.
    Loboda, V.
    Sheveleva, A.
    Lapusta, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/387097.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    piezoelectromagnetic material
    mode-iii interface crack
    analytical solution
    Opis:
    An interface crack between two semi-infinite piezoelectric/piezomagnetic spaces under out-of-plane mechanical load and in-plane electrical and magnetic fields parallel to the crack faces is considered. Some part of the crack faces is assumed to be electrically conductive and having uniform distribution of magnetic potential whilst the remaining part of the crack faces is electrically and magnetically permeable. The mechanical, electrical, and magnetic factors are presented via functions which are analytic in the whole plane except the crack region. Due to these representations the combined Dirichlet-Riemann and Hilbert boundary value problems are formulated and solved in rather simple analytical form for any relation between conductive and permeable zone lengths. Resulting from this solution the analytical expressions for stress, electric and magnetic fields as well as for the crack faces displacement jump are presented. The singularities of the obtained solution at the crack tips and at the separation point of the mention zones are investigated and the formulas for the corresponding intensity factors are presented. The influence of external electric and magnetic fields upon the mechanic, electric and magnetic quantities at the crack region are illustrated in graph and table forms.
    Źródło:
    Acta Mechanica et Automatica; 2018, 12, 4; 301-310
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Uniform stress field inside a non-parabolic open inhomogeneity interacting with a mode III crack
    Autorzy:
    Wang, X.
    Schiavone, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/38612202.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Podstawowych Problemów Techniki PAN
    Tematy:
    non-parabolic inhomogeneity
    mode III crack
    uniform stress field
    antiplane elasticity
    conformal mapping
    singular integral equation
    Opis:
    Using conformal mapping techniques, analytic continuation and the theory of Cauchy singular integral equations, we prove that a non-parabolic open inhomogeneity embedded in an elastic matrix subjected to a uniform remote anti-plane stress nevertheless admits an internal uniform stress field despite the presence of a finite mode III crack in its vicinity. Our analysis indicates that: (i) the internal uniform stress field is independent of the specific shape of the inhomogeneity and the presence of the finite crack; (ii) the existence of the finite crack plays a key role in the non-parabolic open shape of the inhomogeneity and in the non-uniform stresses in the surrounding matrix; (iii) the two-term asymptotic expansion at infinity of the stress field in the matrix is independent of the presence of the finite crack. Detailed numerical results are presented to demonstrate the proposed theory.
    Źródło:
    Archives of Mechanics; 2021, 73, 1; 67-81
    0373-2029
    Pojawia się w:
    Archives of Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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