Study on the Orientation Angle of the Yarns in 3D Integrated Cellular Woven Structure

Abstract

Three-dimensional (3D) integrated cellular woven structures are formed by binding layers of typical 3D woven structures together in the thickness direction with binding threads. On the basis of the geometric model established during previous work, the orientation angle of binders in the basic structure was analyzed firstly, and then the orientation angle of binders and warps in the 3D integrated cellular woven structure were also studied. And at last following conclusions could be gotten: Firstly, the orientation angles Qb of the binders will be larger as the regularizing filling density pw increasing when other parameters (λw ，Nft ，bb ) are all the same. It turns out the adjusting function of the regularizing filling density is a little sensitive to the orientation angle of binders in the basic structure. Secondly, the orientation angle Qcj of the warps will be larger as the regularizing filling density pw increasing when other parameters (λw ，nd ，bb ) are all the same. It turns out the adjusting function of the regularizing filling density is a little sensitive to the orientation angle of warps for 3D integrated cellular woven structures.