理想和非理想界面含裂纹双材料薄带中Bloch-Floquet波的本征频率修正
Eigenfrequency correction of Bloch-Floquet waves in a thin periodic bi-material strip with cracks lying on perfect and imperfect interfaces
摘要：
本文分析了含周期性界面裂纹的双材料薄带中反平面剪切的渐近低维模型。理想和非理想的接口。我们发现，以前推导出的渐近模型显示一定程度的不准确预测驻波本征频率，并建议改进的渐近模型，以解决这种差异。计算表明，对驻波本征频率的修正大大提高了低维模型的精度。
英文摘要：
We analyse an asymptotic low-dimensional model of anti-plane shear in a thin bi-material strip containing a periodic array of interfacial cracks. Both ideal and non-ideal interfaces are considered. We find that the previously derived asymptotic models display a degree of inaccuracy in predicting standing wave eigenfrequencies and suggest an improvement to the asymptotic model to address this discrepancy. Computations demonstrate that the correction to the standing wave eigenfrequencies greatly improve the accuracy of the low-dimensional model.
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