Micromechanical compaction model for unidirectional fabrics

3rd International Conference on Energy Equipment Science and Engineering

Fang, Liangchao^1 ; Qu, Qiyun^1 ; Chen, Qihai^1 ; Huo, Shaoxin^1

38th Research Institute of CETC, Hefei

230088, China^1

关键词: Compaction models;    Compression loads;    Compressive behavior;    Fabric structures;    Multi-layer fabrics;    Thickness reduction;    Unidirectional fabrics;    Uniform compression;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012083/pdf
DOI  :  10.1088/1755-1315/128/1/012083

来源: IOP

【 摘 要 】

In this paper, the effect of nesting on the behavior of the compression response of unidirectional fabrics is studied. Based on the change of the fiber bundle's cross-section, a uniform compression model was established. The model associated fabric thickness with compression load, fabric structure and layer shifting can be used to describe the compressive behavior under any nested state. Compression tests with 6 layers were done. Both of theoretical and experimental results show that the average thickness decreases with the increase of layer shift. As there are two major mechanisms in the compaction of multilayer fabric preform, the thickness reduction caused by nesting was deeply researched.