Ziheng Tang

Harbin Institute of Technology | HIT

Defects in composite structures, such as voids, cannot entirely be avoided during the manufacturing, and have detrimental effect on the damage behavior and mechanical properties. The main characteristics of voids in composites are void content, shape, size, location and distribution. To investigate the effect of void characteristics on the failure...

The characterization and evaluation of uncertainties caused by the automated manufacturing procedure are essential for the early structural design and application of 3D woven composites. To account for the inherent uncertainties, numerical simulations must be integrated with statistical uncertainty quantification and propagation methods. However, i...

This paper comprehensively compares the progressive damage simulation of 3D woven composites between the voxel and conformal mesh models. A progressive damage model for capturing the damage mechanisms of 3D woven composites is proposed, in which the longitudinal fiber fracture, transverse inter-fiber crack and matrix failure are detected by the Puc...