Experimental Study of the Residual Stress of Integrated Composite Structure
整体化复合材料结构残余应力实验研究

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.