Moisture Behavior of Aeronautic Carbon Fiber Reinforced Resin Composite Stiffened Panel

被引:1
|
作者
Tan Xiang-fei [1 ]
Tan Peng-da [2 ]
He Yu-ting [1 ]
Feng Yu [1 ]
An Tao [1 ]
Zhang Tian-yu [1 ]
Liu Kai [1 ]
机构
[1] Air Force Engn Univ, Aeronaut Engn Coll, Xian 710038, Shaanxi, Peoples R China
[2] Chongqing Nanping Middle Sch, Chongqing 400000, Peoples R China
来源
关键词
composite stiffened panel; moisture behavior; moisture model; moisture concentration distribution;
D O I
10.11868/j.issn.1001-4381.2017.000728
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In order to investigate the moisture property of carbon fiber reinforced resin composite stiffened panel in hygrothermal environment, moisture experiments were conducted in condition of 70 degrees C/85%RH. Stage moisture model was proposed and moisture behaviors were analyzed by finite element method. The results show that the moisture curve of experimental result agrees with Fick's diffusion law perfectly in initial moisture stage. However, stage moisture behavior exists in later moisture period. The moisture curve of stage moisture model agrees with finite element result, with an error less than 5% compared with the experimental result. The composite stiffened panel moisture mechanism is revealed by moisture concentration distribution. Additionally, the saturated moisture rate in different thickness zones is not synchronous, which is main reason resulting in stage moisture.
引用
收藏
页码:61 / 69
页数:9
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