Influence of alumina nanoparticles in the epoxy adhesive on the load-carrying capacity of single lap joints was investigated using the finite element method. Nanocomposite adhesives were modelled by reinforcing randomly distributed spherical shaped (at 0.5, 1.0 and 1.5 wt.%) and rod-shaped (at 0.5 and 1.0 wt.%) alumina nanoparticles in the epoxy. 2D finite element was used to discretise the domain of single lap joint comprising nanocomposite adhesives. The load-carrying capacity of single lap joints bonded with nanocomposite adhesive comprising 1.5 wt.% of nanospheres and 1.0 wt.% of nanorods was 58% and 51% more than that of joints with neat adhesive, respectively. The distribution of von-Mises stress, shear stress and peel stress at adherend/adhesive layer interface along the overlap length of the joint was analysed.

中文翻译：

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环氧/纳米氧化铝胶粘剂单搭接接头承载能力的有限元分析

采用有限元方法研究了环氧胶粘剂中氧化铝纳米颗粒对单搭接接头承载能力的影响。通过在环氧树脂中增强随机分布的球形氧化铝颗粒（0.5、1.0和1.5 wt。％）和棒状氧化铝颗粒（0.5和1.0 wt。％）来对纳米复合材料粘合剂进行建模。2D有限元用于离散包含纳米复合胶粘剂的单搭接接头的区域。用包含1.5 wt％的纳米球和1.0 wt％的纳米棒的纳米复合胶粘剂粘结的单搭接接头的承载能力分别比使用纯胶粘剂的接缝分别高58％和51％。分析了沿接缝重叠长度在被粘物/胶层界面处的von-Mises应力，剪切应力和剥离应力的分布。