In this study, failure analysis of composite single bolted joints has been performed. To determine effects of joint geometry and stacking sequences of laminated composite plates on bearing strength and failure mode, experimental studies have been carried out by which edge distance-to-hole diameter ratio (E/D), and plate width-to-hole diameter ratio (W/D) are varied from 1 to 5 and 2 to 5, respectively. In addition, bolt pretensions of 0, 3 and 6 Nm are applied. The composite laminated plates are stacked with the following four different orientations: [0o/0o/30o/30o]s, [0o/0o/45o/45o]s, [0o/0o/60o/60o]s, and [0o/0o/90o/90o]s. Experimental results show that failure mode and bearing strength are closely related to by stacking sequence of plates, geometrical parameters, and bold tension. An increase in bolt pretension positively affected failure behaviour of bolted joints.
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机译：在这项研究中，已经进行了复合材料单螺栓连接的失效分析。为了确定层压复合板的接缝几何形状和堆叠顺序对轴承强度和破坏模式的影响，已经进行了实验研究，通过该实验研究了边距与孔的直径比（E / D）和板宽与孔的直径比率（W / D）分别从1到5和2到5变化。此外，还施加了0、3和6 Nm的螺栓预紧力。复合层压板以以下四个不同方向堆叠：[0 o / 0 o / 30 o / 30 o < / SUP>] s ，[0 o / 0 o / 45 o / 45 o < / SUP>] s ，[0 o / 0 o / 60 o / 60 o < / SUP>] s ，以及[0 o / 0 o / 90 o / 90 o ] s 。实验结果表明，失效模式和承载强度与板的堆垛顺序，几何参数和粗大张力密切相关。螺栓预紧力的增加会积极影响螺栓连接的失效行为。
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