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首页> 外文期刊>International Journal of Adhesion & Adhesives >Experimental analysis of the behavior of adhesively bonded joints under tensile/compression-shear cyclic loadings
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Experimental analysis of the behavior of adhesively bonded joints under tensile/compression-shear cyclic loadings

机译:拉伸/压缩-剪切循环载荷下胶接接头行为的实验分析

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摘要

Adhesive bonding is an interesting structural assembling technique which requires accurate numerical models in order to optimize the design of high-tech applications. In this paper, following the strategy previously developed for monotonic loadings, crack initiation in adhesively-bonded joints, under various tensile/compression-shear cyclic loadings is analyzed using a modified Arcan device with a single bonded joint designed to strongly limit stress concentrations. Moreover, such a system is associated with the maximum stress state in the center of the adhesive, and thus, allows the analysis of some influences of the stress triaxiality. Experimental results, for a ductile adhesive, under cyclic loadings are presented for different load amplitudes and mean loads; they underline that the evolutions of viscous deformations and of damage depend on the loading type.
机译:粘合剂粘结是一种有趣的结构组装技术,需要精确的数值模型才能优化高科技应用的设计。在本文中,按照先前开发的用于单调加载的策略,使用改进的Arcan装置分析了在各种拉伸/压缩-剪切循环载荷下胶接接头的裂纹萌生,该装置具有设计用于严格限制应力集中的单胶接接头。而且,这种系统与粘合剂中心处的最大应力状态有关,因此可以分析应力三轴性的一些影响。实验结果表明,对于延展性胶粘剂,在不同载荷振幅和平均载荷下的周期性载荷下均表现出良好的性能。他们强调,粘性变形和损伤的演化取决于载荷类型。

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