ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Compression creep model of dry fiber preform considering temperature effect
Received date: 2023-02-01
Revised date: 2023-02-20
Accepted date: 2023-03-15
Online published: 2023-03-21
Supported by
Fundamental Research Funds for the Central Universities(D5000220202);Key Research and Development Program of Shaanxi Province(2020ZDGY01-01)
The description of the creep/recovery behavior of the fiber fabric preform is crucial for modeling the production of composite materials. The creep/recovery experiment of the CF3031 dry fiber preform was carried out， the experimental results were calculated and analyzed， and the material constitutive model was established to analyze and predict the thick deformation behavior of the CF3031 dry fiber preform in the preforming process. To evaluate and analyze the creep component and overall fitting impact of several creep calculation models on the creep/recovery test data of the CF3031 dry fiber preform， the least square method principle and the superposition principle are first utilized. The findings demonstrate that Burgers model is superior to other models. Then， a single equation material model suited for various creep stresses and preform temperatures is presented to describe the time-dependent thick creep/recovery behavior of dry fiber fabric preforms on the foundation of the conventional Burgers model. The least squares approach and analysis of experimental data were used to derive the model coefficients. The results show that the experimental and model prediction curves are essentially consistent， demonstrating the efficiency of the procedure. Finally， the experimental outcomes of the new design are predicted using the constitutive model developed in this research. The findings demonstrate the usefulness of this approach by demonstrating that the experimental curve is essentially compatible with the model prediction curve.
Yanpeng SI , Lishuai SUN , Enwei YAN , Yujun LI , Jianjun JIANG . Compression creep model of dry fiber preform considering temperature effect[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023 , 44(22) : 428513 -428513 . DOI: 10.7527/S1000-6893.2023.28513
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