FE parametric study on the longitudinal tensile strength and damage mechanism of Z‐pinned laminates

A new periodic unit cell model was proposed to quantify the longitudinal tensile strength of laminates with different Z‐pin parameters. A modified three‐dimensional Hashin criterion was used to predict the failure of the laminate and Z‐pin, while maximum stress criterion was utilized to analyze the damage in the resin‐rich zone. Benchmark tests were carried out to verify the model, and finite element (FE) results agreed well with the...