干涉配合复合材料多排机械连接钉载分配的研究

利用ANSYS9.0软件对复合材料多排环槽铆钉连接构件各钉承载比例进行了三维有限元分析。在分析过程采用静态接触算法模拟环槽铆钉与复合材料板的干涉配合过程,并综合考虑了复合材料特性、环槽铆钉与复合材料板及复合材料板与复合材料板之间的摩擦和接触、复合材料板上的预紧力、以及螺栓和复合材料板的约束条件。分析计算结果与试验结果基本一致,说明采用该软件和静态接触算法来模拟复合材料干涉配合过程是可行的。研究结果表明,四排单列干涉配合复合材料板构件外侧两紧固件将承受较大载荷,但是各紧固件承载比例趋于均匀。

Research on Pin Load Distribution of Multiple Interference-Fit Composite Joint

The pin load distribution of multiple Swage-locking pin-jointed composite laminate was studied using ANSYS software. The process of interference-fit between swage-locking pin and composite laminate was analyzed by introducing the static state contact arithmetic. The characteristic of the composite material, the friction and contact between the pins and the composite laminate, the preload of the composite laminate, and the boundary conditions of pins and composite laminate were considered comprehensively in the analysis. The calculated results agree well with experiment data. This proves that using static state contact arithmetic with ANSYS software to simulate interference-fit composite joint process is feasible. The study show that the two outboard bolts of the composite laminate will receive more load; compared with sliding-fit composite joint, pin load distribution of interference-fit composite joint is more homogeneous.