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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >Influence of the geometry and the frequency range on the interface delamination in smart patch/layer structures under combined dynamic loading
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Influence of the geometry and the frequency range on the interface delamination in smart patch/layer structures under combined dynamic loading

机译：几何和频率范围对动态加载组合智能贴片/层结构中界面分层的影响

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摘要

The paper deals with the interface behavior of a smart patch/layer lightweight structure subjected to combined time harmonic mechanical loading, electric field and environmental conditions. The applied dynamic shear-lag and Fourier method refer to the overlap zone of the considered structure. It gives a possibility to obtain solutions in a closed form for axial and shear stresses of the structure. The types of solutions obtained depend mainly on the adherends' thickness, the frequency interval of applied dynamic loading and the shear modulus of the used adhesive. At a given constant ratio of thicknesses of the adherends, the frequency interval of the dynamic load can change drastically the type of solution of the considered system of ordinary differential equations. Theoretical predictions for single debond length of patch/layer structure at an elastic-brittle interface behavior are provided. The influence of the ratio of thicknesses of the adherends in PZT-5H/CFRP patch/layer structure and the frequency range of applied dynamic mechanical loading on the interface delamination is investigated. All results are illustrated in figures and tables and are discussed.
机译：本文涉及智能贴片/层轻质结构的界面行为，这些结构经过组合时间谐波机械加载，电场和环境条件。应用的动态剪切滞后和傅立叶方法是指考虑结构的重叠区域。它能够以封闭形式获得轴向和剪切应力的轴向和剪切应力的可能性。获得的溶液类型主要取决于粘附的厚度，施加的动态负载的频率间隔和所用粘合剂的剪切模量。在给定的恒定比例的粘附型的恒定比率，动态负荷的频率间隔可以大大改变常微分方程的考虑系统的解决方案的类型。提供了弹性脆性接口行为下贴片/层结构的单一借方长度的理论预测。研究了粘附在PZT-5H / CFRP贴片/层结构中厚度比率的影响以及界面分层上的施加动态机械负载的频率范围。所有结果都在图和表格中示出，并进行了讨论。

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