Abstract The hybrid joints being used in the design of mechanical structures because of their significant advantages. The tubular lap joints are used widely in aerospace, naval, and transport industries such as rudder and elevator rods, driving shafts, pull push rods, anti-roll bar and stabilizer bar in cars, trucks and trains. The torsional behavior of mechanical, adhesively bonded, and hybrid tubular lap joints for aluminum to aluminum, and composite to aluminum subjected to pure torsion have been investigated experimentally. The effect of outer tube material and thickness, the joint’s type, and cured and post-cured temperature (room temperature and 40 °C), have been investigated experimentally. A fixture and a torsional set-up device have been designed and manufactured to apply the required torque to the joint. The outcomes from composite to aluminum joints confirm that the hybrid joint has 39.5% and 276.6% higher torque capacity than the mechanical joint and adhesively bonded joint, respectively. Furthermore, the cured and post-cured process at 40 °C, increased the maximum torque to failure, 37.6% and 57.1% for adhesively bonded and hybrid (rivet/bonded) joint, respectively. It has been observed that by upgrading the mechanical joint and adhesively bonded joint to the hybrid (rivet/bonded) joint, increasing the amount of joint’s strength and torque capacity in comparison with the increase in the weight of the structure is affordable.

中文翻译：

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纯扭转作用下混合粘合（铆钉/粘合剂）管状搭接接头（复合材料到金属）的力学行为的实验研究

摘要 混合接头以其显着的优势被用于机械结构的设计。管状搭接接头广泛用于航空航天、海军和运输行业，如汽车、卡车和火车的方向舵和升降舵杆、驱动轴、拉推杆、防倾杆和稳定杆。已经通过实验研究了机械、粘合剂和混合管状搭接接头的扭转行为，用于铝与铝以及复合材料与铝之间的纯扭转。通过实验研究了外管材料和厚度、接头类型以及固化和后固化温度（室温和 40 °C）的影响。设计和制造了一个固定装置和一个扭转设置装置，以将所需的扭矩施加到接头上。复合材料到铝接头的结果证实，混合接头的扭矩容量分别比机械接头和胶粘接头高 39.5% 和 276.6%。此外，在 40 °C 下固化和后固化过程增加了最大失效扭矩，对于粘合剂粘合和混合（铆钉/粘合）接头，分别增加了 37.6% 和 57.1%。已经观察到，通过将机械接头和粘合接头升级为混合（铆钉/粘合）接头，与结构重量的增加相比，增加接头的强度和扭矩容量是可以承受的。增加了最大失效扭矩，胶粘连接和混合（铆钉/粘合）接头分别增加了 37.6% 和 57.1%。已经观察到，通过将机械接头和粘合接头升级为混合（铆钉/粘合）接头，与结构重量的增加相比，增加接头的强度和扭矩容量是可以承受的。增加了最大失效扭矩，胶粘连接和混合（铆钉/粘合）接头分别增加了 37.6% 和 57.1%。已经观察到，通过将机械接头和粘合接头升级为混合（铆钉/粘合）接头，与结构重量的增加相比，增加接头的强度和扭矩容量是可以承受的。