For interfacial stratification mechanism of sandwich plate structures, the forced propagation solution of interface shear stress excited by SH waves is derived by global matrix methods and integral transformation methods. The necessary condition of interfacial shear delamination excited by alternating stress is analyzed with the interface fatigue failure theory. The exact value of forced propagation solution is calculated by adaptive Gauss–Kronrod quadrature numerical integration methods, which is verified via finite element methods. The coupling resonance mechanism of interface shear stratification is revealed by the forced vibration solution and the mass-spring model. The effects of excitation frequency, structural parameters, accretion, and matrix materials on the interfacial shear delamination are analyzed and discussed by practical cases of vibration de-accretion. For interface shear stratification of sandwich structures, the optimal excitation frequency as well as substrate thickness and accretion thickness is the value at coupling resonance, around which the interfacial shear stratification interval is formed by the interface fatigue failure criteria. In the stratification or/and antistratification design excited by vibrations, the excitation source and structure could be optimized by the method. Therefore, the results have important theoretical value for the extension and application of vibration stratification or/and antistratification technology.

对于夹层板结构的界面分层机理，通过整体矩阵法和积分变换法推导了SH波激发的界面剪应力的强迫传播解。用界面疲劳破坏理论分析了交变应力激发的界面剪切分层的必要条件。强制传播解的精确值是通过自适应高斯-克朗德罗德正交数值积分方法计算的，并通过有限元方法进行了验证。通过强迫振动解和质量-弹簧模型揭示了界面剪切分层的耦合共振机理。激励频率，结构参数，吸积的影响，通过振动减积的实际案例分析和讨论了界面剪切分层中的基体材料。对于夹层结构的界面剪切分层，最佳激励频率以及基体厚度和堆积厚度是耦合共振时的值，围绕该值，根据界面疲劳破坏准则形成界面剪切分层间隔。在振动激发的分层或/和反分层设计中，该方法可以优化激发源和结构。因此，该结果对于振动分层或反分层技术的推广和应用具有重要的理论价值。最佳激励频率以及基体厚度和积聚厚度是耦合共振时的值，在该值附近，界面疲劳破坏准则形成了界面剪切分层间隔。在振动激发的分层或/和反分层设计中，该方法可以优化激发源和结构。因此，该结果对于振动分层或反分层技术的推广和应用具有重要的理论价值。最佳激励频率以及基体厚度和积聚厚度是耦合共振时的值，在该值附近，界面疲劳破坏准则形成了界面剪切分层间隔。在振动激发的分层或/和反分层设计中，该方法可以优化激发源和结构。因此，该结果对于振动分层或反分层技术的推广和应用具有重要的理论价值。该方法可以优化激励源和激励结构。因此，该结果对于振动分层或反分层技术的推广和应用具有重要的理论价值。该方法可以优化激励源和激励结构。因此，该结果对于振动分层或反分层技术的推广和应用具有重要的理论价值。