Abstract Epoxy adhesive was reinforced with spherical-shaped and rod-shaped alumina nanoparticles. Quasi-static shear strength of aluminium alloy single lap joints was determined as a function of wt.% (0.5, 1.0, 1.5, and 2.0) of alumina nanoparticles in the compression loading. At quasi-static loading, the shear strength of joints with epoxy/nanoalumina adhesives was higher (1.3–1.8 times) than the joints with neat adhesive. Dynamic shear strength of joints with neat adhesive, and epoxy/nanoalumina adhesives containing 1.5 wt% of nanoalumina was analysed. A significant improvement (3–5 times) of dynamic shear strength of joints was obtained over quasi-static shear strength of joints. However, the static and dynamic lap shear strength of joints containing spherical nanoalumina was higher compared to the neat adhesive, and nanoadhesives containing rod-shaped nanoalumina.

中文翻译：

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应力速率对环氧树脂/纳米氧化铝粘合剂粘接铝合金单搭接接头剪切强度的影响

摘要 环氧胶采用球形和棒状氧化铝纳米粒子增强。铝合金单搭接接头的准静态剪切强度被确定为压缩载荷中氧化铝纳米颗粒的重量百分比（0.5、1.0、1.5 和 2.0）的函数。在准静态载荷下，使用环氧树脂/纳米氧化铝粘合剂的接头的剪切强度高于使用纯粘合剂的接头（1.3-1.8 倍）。分析了具有纯粘合剂和含有 1.5 wt% 纳米氧化铝的环氧树脂/纳米氧化铝粘合剂的接头的动态剪切强度。接头的动态剪切强度比接头的准静态剪切强度显着提高（3-5 倍）。然而，与纯粘合剂相比，含有球形纳米氧化铝的接头的静态和动态搭接剪切强度更高，