摘要
基于缺陷产生机理及多件复合材料网格-蒙皮构件缺陷检测数据统计结果,分析复合材料网格-蒙皮构件常见的缺陷类型及影响制造缺陷的工艺因素与结构因素;采用工艺仿真分析了加压点及压力对缺陷的影响规律,制定了工艺控制措施;通过Ф1 m典型网格-蒙皮构件成型质量及轴压破坏试验验证工艺控制措施有效性及内部质量提高对承载能力的贡献。结果表明:优化网格筋条预压实工艺、提高固化压力能够有效减少复合材料网格-蒙皮构件制造缺陷,提高内部质量及构件承载能力。
The process influencing association of curing defects in advanced grid stiffened composite is summarized in term of thecontrol factors and defect characters.Meanwhile,the control factors of curing temperature and pressure were evaluated via processsimulation for creating the process control method.Furthermore,the typical grid stiffened cylinder is prepared to verify the availabilityfor this process control method.The results show that increasing pressure parameter can significantly enhance the quality andcompression stability of advanced grid stiffened structures.
作者
李健芳
李桂洋
郭鸿俊
杜宝宪
李艳霞
Li Jian-fang;Li Gui-yang;Guo Hong-jun;Du Bao-xian;Li Yan-xia(Aerospace Research Institute of Materials & Processing Technology,Beijing,100076;Beihang University,Beijing,100191)
出处
《导弹与航天运载技术》
CSCD
北大核心
2017年第1期79-83,共5页
Missiles and Space Vehicles
基金
国家自然科学基金-青年科学基金项目(51603058)
关键词
复合材料
热压罐工艺
制造缺陷
Composites
Autoclave process
Manufacturing defect
