Design of the Stitching Parameters Applied to the Laminates with Cut-Out
A novel stitching reinforcement method is applied to the laminates with cut-out for a decrease in the interlaminar stresses . The stitching parameters, such as the distance between edge and stitch line, the thread radius, and the stitch step etc.,are designed,and the three-dimentional models are established for FEM (Finite Element Method). The maximum circumferential shear stress appears in laminates of 0/-45, showing stress distribution similar to analytic solutions . The interlaminar circumferential shear stress of stitched is significantly decreased, and the validity of this method is proved.
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Y. Wang et al., "Design of the Stitching Parameters Applied to the Laminates with Cut-Out", Advanced Materials Research, Vols. 194-196, pp. 1854-1857, 2011