Research on the Influence of Yarn Reduction on the Bending Performance of Three-dimensional Woven Composites

The primary objective of this study is to conduct a comprehensive experimental investigation into the impact of yarn reduction on the damage mechanisms and progression of 3D woven composites under bending loads, utilizing a combination of micro-XCT and digital image correlation (DIC) techniques. Typical bending behaviors of 3D woven composites have been discussed through load–displacement curves combining camera photography techniques. The influence of yarn reduction on strain distribution during bending deformation can be obtained by utilizing DIC techniques. Additionally, the final failure mode analysis of three-dimensional woven composite materials was conducted using micro-XCT techniques.