In this paper, carbon/glass intra-hybrid woven fabric as reinforcement and vinyl ester resin as matrix, CF/GF composite was manufactured through hand lay-up method. Then, the investigation on the mechanical property and initial fracture behavior was carried out. Initial fracture stress or knee point stress was the main factor of initial damage which discussed with AE characteristics during mechanical test. Scanning electron microscope observation was also carried out to observe the fracture of materials after testing. Besides, model of the woven fabric was built by finite element analysis method (FEM) and then the fracture mechanism was simulated by the software Marc. By combining the experimental results and finite element analysis, stress-strain curve and initial behavior of fracture progress in resin hybrid composite materials were predicted.

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