Effect of shallow straight-joint braided fabric geometrical parameters on fiber volume fraction

Science and Engineering of Composite Materials

Guan Tianru¹  Liu Yong¹  Chen Zhaofeng²  Zhu Jianxun² 

[1] College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P.R. China;Sinoma Science and Technology Co., Ltd., Nanjing 210012, P.R. China;

关键词: fabric parameter;    fiber volume fraction;    representative unit cell;    2.5d structure;   

DOI  :  10.1515/secm-2011-0121

来源: DOAJ

【 摘 要 】

This research paper establishes the relationship between fabric parameters and fiber volume fraction through analyzing the representative unit cell of the 2.5D shallow straight-joint preform. The effect of fabric parameters on the fiber volume fraction by theoretical study is also investigated. The 2.5D shallow straight-joint fabric was manufactured by quartz fiber to verify the fiber volume fraction by theoretical and experimental study. The errors between predicted and measured results is only 2.12% and 1.13%. It was also found that as warp density and linear yarn density of yarn decrease and fabric thickness increases, the overall fiber volume fraction and weft yarn fiber volume fraction increase, but warp yarn fiber volume fraction decreases. Weft yarn has greater influence on fiber volume fraction of fabric than warp yarn in the structure of shallow straight-joint.

【 授权许可】

Unknown