赵越, 陈红迁, 鞠丽梅. 流固耦合条件下压电层合柱的共振断裂分析1)[J]. 力学与实践, 2019, 41(2): 137-144. DOI: 10.6052/1000-0879-18-384
引用本文: 赵越, 陈红迁, 鞠丽梅. 流固耦合条件下压电层合柱的共振断裂分析1)[J]. 力学与实践, 2019, 41(2): 137-144. DOI: 10.6052/1000-0879-18-384
ZHAO Yue, CHEN Hongqian, JU Limei. RESONANT FRACTURE OF LAYERED CYLINDRICAL PIEZOELECTRIC SENSORS LOADED WITH VISCOUS LIQUID1)[J]. MECHANICS IN ENGINEERING, 2019, 41(2): 137-144. DOI: 10.6052/1000-0879-18-384
Citation: ZHAO Yue, CHEN Hongqian, JU Limei. RESONANT FRACTURE OF LAYERED CYLINDRICAL PIEZOELECTRIC SENSORS LOADED WITH VISCOUS LIQUID1)[J]. MECHANICS IN ENGINEERING, 2019, 41(2): 137-144. DOI: 10.6052/1000-0879-18-384

流固耦合条件下压电层合柱的共振断裂分析1)

RESONANT FRACTURE OF LAYERED CYLINDRICAL PIEZOELECTRIC SENSORS LOADED WITH VISCOUS LIQUID1)

  • 摘要: 建立了轴向剪切振动条件下,流固耦合压电层合柱的断裂力学分析模型。运用分离变量法、无穷三角级数、柯西奇异积分、Bessel函数和Lobatto-Chebyshev配点法等方法,得到了应力强度因子随频率变化的数值结果。分析了裂纹角度、弹性模量、压电系数、介电系数、密度等对SIF (stress intensity factor)一阶共振频率的影响规律。

     

    Abstract: The fracture behavior of a fluid-structure piezoelectric laminated column is studied under the condition of the axial shear vibration. The problem is solved by the variable separation method, the infinite trigonometric series, the Cauchy singular integral equation, the Bessel function and the Lobatto-Chebyshev collocation. The numerical results of the stress intensity factor (SIF) against the frequency are obtained, as well as the effects of the crack angle, the elastic modulus, the piezoelectric coefficient, the dielectric coefficient and the density on the first order resonance behavior of the stress intensity factor.

     

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