Abstract Experimental results on the influence of bolt hole to edge eccentricity for Double Shear Bolted Joints (DSBJ) used to attach fiber reinforced composite laminates are presented. Four different eccentricities of DSBJs were examined and microCT imaging conducted at different stages of the loading history are presented. The macroscopic load-hole elongation results along with the microCT images exhibit a distinct progression of failure which dictate not only the bearing load but also the ultimate load of the joint. The experimental procedure, microCT images and failure progression mechanisms are reported in this paper. The results can serve to develop a mechanism based model of DSBJ failure progression.

中文翻译：

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孔偏心对双剪螺栓接头 (DSBJ) 失效进程的影响

摘要 介绍了用于连接纤维增强复合材料层压板的双剪螺栓接头 (DSBJ) 的螺栓孔对边缘偏心影响的实验结果。检查了四种不同的 DSBJ 离心率，并展示了在加载历史的不同阶段进行的 microCT 成像。宏观载荷孔伸长率结果以及显微CT 图像显示出明显的失效进程，这不仅决定了轴承载荷，而且还决定了接头的极限载荷。本文报告了实验过程、显微 CT 图像和故障进展机制。结果可用于开发基于机制的 DSBJ 故障进展模型。