一維六方壓電準(zhǔn)晶中帶三條不對稱裂紋的圓形孔口的反平面問題(英文)
[Abstract]:In this paper, the fracture problem of circular holes with asymmetric three cracks in one-dimensional hexagonal piezoelectric quasicrystals is studied by using complex variable function method and conformal mapping. Based on the basic equations of quasicrystal piezoelectric materials and the symmetry of point groups and the linear piezoelectric effect of one-dimensional hexagonal quasicrystals, the governing equations for anti-plane problems of one-dimensional hexagonal quasicrystal piezoelectric materials are derived, and the Cauchy integral formula is combined. The analytical expression of the intensity factor of the crack tip field is obtained under the condition of electroosmotic and electroosmotic boundary conditions. When the crack length and orifice radius are changed, some new crack models can be simulated. The results are consistent with the original results without considering the effect of electric load. The effect of geometric parameters of material on the field intensity factor is discussed by numerical examples. It is concluded that the horizontal crack length and circle radius can promote the crack growth. This study will provide reliable theoretical value for the preparation and application of materials in engineering.
【作者單位】: 寧夏大學(xué)民族預(yù)科教育學(xué)院;寧夏大學(xué)數(shù)學(xué)計(jì)算機(jī)學(xué)院;
【基金】:The National Natural Science Foundation of China(11362018;11261045) the Specialized Research Fund for the Doctoral Program of Higher Education of China(20116401110002) the Natural Science Foundation of Ningxia University(ZR15026)
【分類號】:O346.1
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