Abstract Advanced developments in adhesive technology allow adhesive joints to be used in structures that may be subjected to dynamic loads caused by collisions, explosions, or high-velocity impacts. Characterizing adhesive joints under high loading rates is imperative before integrating them into structures that demand crashworthiness and high impact resistance. In this experimental study, an attempt is made to characterize adhesive joints under a moving shock-wave loading using custom designed specimens mounted on a large-scale shock tube and compare the results with quasi-static loading. Both the dynamic and static loading experiments are configured to the same mounting location of the shock tube, using the same instrumentation setup. It is found that failure of adhesive joints takes place at lower pressures in dynamic loadings caused by impacting shock waves compared to the case of quasi-static loadings. The residual strengths of the post-shock specimens are also assessed by performing quasi-static tests. In order to gain more insight into the behavior of the adhesive, an FEM model is developed, and the rate dependency of the adhesive is simulated using Cowper Symonds material model.

中文翻译：

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准静态和冲击波载荷下的粘接接头

摘要 粘合剂技术的先进发展使得粘合剂接头可用于可能受到碰撞、爆炸或高速冲击引起的动态载荷的结构中。在将它们集成到需要耐撞性和高抗冲击性的结构之前，必须在高负载率下表征粘合剂接头。在这项实验研究中，尝试使用安装在大型冲击管上的定制设计试样来表征移动冲击波载荷下的粘合接头，并将结果与​​准静态载荷进行比较。动态和静态加载实验都配置到激波管的相同安装位置，使用相同的仪器设置。研究发现，与准静态载荷的情况相比，在由冲击波引起的动态载荷中，粘合剂接头的失效发生在较低的压力下。冲击后试样的残余强度也通过进行准静态试验来评估。为了更深入地了解粘合剂的行为，开发了 FEM 模型，并使用 Cowper Symonds 材料模型模拟了粘合剂的速率依赖性。