ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Characterization and modeling of inter-ply slipping of out-of-autoclave prepreg
Received date: 2024-07-25
Revised date: 2024-08-19
Accepted date: 2024-09-04
Online published: 2024-09-18
Supported by
National Natural Science Foundation of China(12262019);Lanzhou University of Technology Hongliu Excellent Young Talents Support Program;Wenzhou Science and Technology Plan Project(G20240036)
In the hot diaphragm forming process of double-curved complex components using out-of-autoclave prepreg， defects such as wrinkling and buckling often occur. One of the main mechanisms behind these defects is the restriction of inter-ply slipping. In the hot diaphragm preforming process， factors influencing inter-ply slipping include temperature， normal pressure， and relative sliding velocity. Based on the pull-through test principle， this paper designs a set of inter-ply slipping test systems for evaluating the inter-ply slipping properties of out-of-autoclave prepreg. The effects of temperature， normal pressure， and sliding velocity on inter-ply slipping are analyzed， and a mechanical analytical model describing its inter-ply slipping behavior is developed. This model can accurately predict the inter-ply slipping behavior as a function of relative slip displacement under different process parameter conditions. The good agreement between model predictions and experimental data validates the effectiveness of the model.
Feng WANG , Lidong WANG , Yaxin FENG , Xuanming ZHANG , Xiangyun ZHANG . Characterization and modeling of inter-ply slipping of out-of-autoclave prepreg[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2025 , 46(8) : 430995 -430995 . DOI: 10.7527/S1000-6893.2024.30995
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