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An integrated preforming-performance model for high-fidelity performance analysis of cured woven composite part with non-orthogonal yarn angles

引用

Chinese Journal of Aeronautics 2022年第6期35卷 367-378页

作者： Biao LIANG Sasa GAO Weizhao ZHANG School of Mechanical Engineering Northwestern Polytechnical UniversityXi’an 710072China College of Mechanical&Electrical Engineering Shaanxi University of Science&TechnologyXi’an 710021China Department of Mechanical and Automation Engineering The Chinese University of Hong KongHong KongChina

Preforming process would change yarn angle and yarn orientation,its influence on the material properties and material orientations needs to be considered in the performance ***,most current performance models fail to account for the preforming *** integrated performance model accounting for the impact of preforming has been *** this integrated model,part geometry,yarn angle and orientation after preforming of multiple prepreg layers are predicted by Finite Element Analysis(FEA)using a non-orthogonal constitutive *** were conducted to validate the preforming simulation for a single dome composites structure made by two prepreg layers with different initial fiber *** analysis until failure was then conducted for the single dome structure to validate the integrated performance *** between simulation and experiment shows that not only the failure mode and failure zone,but also the force-displacement curve during compression process are captured correctly by the performance model,demonstrating the effectiveness of the newly proposed model in accounting for the impact of preforming process.

关键词： Mechanical properties Non-orthogonal model Performance analysis Woven composites yarn angle

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