复合材料构件热压罐成型工艺质量的群子理论分析
详细信息Sub-cluster theory analysis of process quality for composite components by autoclave process
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摘要: 基于热压罐成型复合材料构件的无损检测数据, 利用群子统计理论分析了复合材料构件结构形式与成型质量的关联性, 建立了分层面积的群子模型, 获得了反映分层面积倾向性的群子参数, 对热压罐成型复合材料构件的工艺质量进行了评价。结果表明, 在所统计的航空复合材料构件中, 构件的分层面积分布以小分层为主, 构形复杂（如工形件）、过薄（1~2 mm）或过厚（>5 mm）的复合材料构件产生大分层的倾向性增大, 同时分层面积分布的分散性也增大, 成型质量不易控制。Abstract: Based on considerable non-destructive identification data for composite components by autoclave process, sub-cluster statistics theory was applied in this paper to investigate the relationship between the structure form of composite components and manufacturing quality. A sub-cluster model about delamination area was set up. The process quality of composite components by autoclave process was evaluated on the basis of the sub-cluster parameters reflecting the tendency of delamination area. The results show that in the statistical range of composite components applied in aircrafts, the small delamination area is in a dominant position in the delamination area distribution of composite components. Moreover, the complex composite structures (such as I-shaped laminatess), the thinner (1~2 mm) laminates and the thicker (>5 mm) laminates increase the tendency of the large delamination area appearance and the dispersibility of delamination area, and thus lead to a worse manufacturing quality of composite components.
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Keywords:
- composites /
- autoclave /
- process quality /
- sub-cluster theory
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