针对制作工艺为连接处预先制孔,粘结和螺栓安装一并完成的复合材料胶-螺混合连接接头,利用其传力机制和胶-螺之间的变形协调条件推导了承载力计算方法。计算了接头中胶连接的破坏荷载,分析了胶连接承受其破坏荷载时胶层剪应变沿搭接长度的分布规律,利用胶-螺之间的变形协调条件计算了此时螺栓连接所承担荷载;胶连接的破坏荷载和此时螺栓连接所承担荷载之和即为接头承载力。利用该公式对一组采用上述工艺制作的试件进行了承载力计算和试验验证,理论值与试验值吻合较好,验证了理论推导的正确性。
The carrying capacity was calculated using the load transfer mechanism and the bonded-bolted deformation harmony condition for the bonded-bolted hybrid composite joints,which make holes,adhere coat and install bolts.The failure load of the bonded connection portion was calculated,and the shearing strain of the adhesive layer along the bonded length was analyzed when the bonded connection portion endured its failure load,and the load of the bolted connection portion was calculated using the bonded-bolted deformation harmony condition.The carrying capacity is the sum of the two loads.The carrying capacity calculated by the method was in good agreement with the experimental data,which validate the method.
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