整体化复合材料结构残余应力实验研究

Experimental Study of the Residual Stress of Integrated Composite Structure

通过钻孔法测试了T型整体化复合材料结构件在不同固化工艺方案下的残余应力,并研究了多墙类加筋壁板的腹板和蒙皮的残余应力分布,以及不同钻孔深度对结构件内部残余应力测试结果的影响。研究结果表明:共固化方式下产生的残余应力要小于胶结共固化方式下的残余应力。

Using hole-drilling method,the residual stress of T-type integrated composite structures manufactured by different solidifying technics was measured,and the residual stress distribution for web and skin of multi-wall panel-stiffener structure was also studied. Then,the relationship between the drilling depth and the tested data of structure was studied. Results show that the residual stress in structure manufactured by co-cure method is smaller than that in structure manufactured by co-bonding methods.