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Mechanism of Manufacturing Defects and Controlling for Advanced Grid Stiffened Structures

Li Jian-fang;Li Gui-yang;Guo Hong-jun;Du Bao-xian;Li Yan-xia;Aerospace Research Institute of Materials & Processing Technology;Beihang University;  
The process influencing association of curing defects in advanced grid stiffened composite is summarized in term of the control factors and defect characters.Meanwhile, the control factors of curing temperature and pressure were evaluated via process simulation for creating the process control method.Furthermore, the typical grid stiffened cylinder is prepared to verify the availability for this process control method.The results show that increasing pressure parameter can significantly enhance the quality and compression stability of advanced grid stiffened structures.
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