One-step spreading for 2D woven carbon fiber reinforced plastics

被引：0
|
作者：
Bao Y. [1 ]
He R. [1 ]
Song Y. [1 ]
Luo W. [2 ]
Chen G. [2 ]
An L. [2 ]
机构：
[1] College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
[2] Composites Workshop, Avic Chengdu Aircraft Industrial (Group) CO. LTD., Chengdu
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2022年 / 39卷 / 07期
关键词：
2D woven carbon fiber reinforced plastics; constitutive model; finite element analysis (FEA); plies spreading; prepreg lay-up;
D O I：
10.13801/j.cnki.fhclxb.20210820.003
中图分类号：
学科分类号：
摘要：
Draping for 2D woven carbon fiber reinforced plastics (CFRPs) influences the quality of final composite parts directly and significantly. The problems of laying reinforced carbon fibers in the manufacturing of 2D woven CFRPs were studied. A material coordinate system, a global coordinate system and a body coordinate system were built. A non-orthogonal constitutive model according to coordinate transformation relation was proposed based on continuum theory. Mechanical properties of 2D woven CFRPs were tested by uni-axial tensile tests for measuring the tensile properties and picture-frame tests for measuring the shear properties. A one-step plies spreading algorithm for 2D woven CFRPs was developed and an independent one-step plies spreading solver was developed. A cover part was spread. The result shows great consistency that the maximum error is only 5.0 mm which is a 1.9% margin of error. The carbon fiber shear angle distributions by calculation are consistent with experimental results and the maximum error is only 4°. The one-step spreading algorithm of 2D woven CFRPs was verified by calculations and experiments. © 2022 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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页码：3150 / 3161
页数：11
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