Abstract
The present study investigated the damage analysis based on the peridynamics (PD) theory, which can deal with damage in composites with arbitrary fiber orientation, as a basis for enhancing the strength properties of the composites with local fiber orientation. The damage of the composites was reproduced by setting the appropriate bond properties (bond constant and critical stretch). The advantages and disadvantages of the PD models for the damage in composites with curvilinear fiber paths were also discussed. The PD model was further extended to address the multiple-type and multiple-site damage in multi-ply laminated composites with arbitrary fiber orientation. Finally, in order to apply the PD model to composites with the AP-PLY (Advanced Placed Ply) configuration allowed by current fiber placement technology, the efforts were made to establish an integrated framework of forming and mechanical analyses for future composite manufacturing and design.
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