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材料工程  2018, Vol. 46 Issue (4): 152-157    DOI: 10.11868/j.issn.1001-4381.2015.000378
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成型工艺对复合材料帽型加筋板轴压特性的影响
徐荣章, 凌晓涛, 贾利勇
航空工业第一飞机设计研究院, 西安 710089
Effect of Forming Process on Compression Characteristics of Composite Hat-stiffened Panels
XU Rong-zhang, LING Xiao-tao, JIA Li-yong
AVIC the First Aircraft Institute, Xi'an 710089, China
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摘要 对受到边界约束的不同工艺成型复合材料帽型加筋板进行轴压实验,研究二次胶接和共固化工艺对复合材料帽型加筋板压缩稳定性与承载能力的影响,同时分析蒙皮厚度及填充泡沫对加筋板轴压特性的影响。实验使用应变计监测加筋板局部失稳特性,并记录声响和断面观测以分析结构破坏机理。结果表明:蒙皮厚度显著影响结构压缩性能;聚甲基丙烯酰亚胺(PMI)填充泡沫能小幅度提高结构失稳载荷,但对结构破坏载荷无显著影响;相比二次胶接加筋板,共固化加筋板失稳载荷和破坏载荷均降低约18%;共固化加筋板损伤出现较早,且破坏是由分层引起,而二次胶接加筋板主要是脱粘破坏。
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徐荣章
凌晓涛
贾利勇
关键词 复合材料加筋板二次胶接共固化屈曲后屈曲    
Abstract:An experiment was conducted for the composite hat-stiffened panels with different forming process types with boundary constraint, in order to study the effect of secondary bonding and co-curing on the compression stability and carrying capacity of composite hat-stiffened panels, while the thickness of skin and polymethacrylimide (PMI) foam were taken into account on the effect on axial compression characteristics. In the test, strain gage was pasted to monitor the local bucking, acoustic emission was detected and fracture section was observed to investigate the fracture mechanism. The results show that the thickness of skin has significant influence on the compression properties of panels, PMI foam can slightly increase the buckling load while has no impact on the ultimate load. Both buckling load and ultimate load of co-cured panels almost decrease by 18% compared with that of secondary bonded panels, damage can be observed in the former prior to the latter, delamination induces collapsing for the former panels while debond is the key point of breaking for the latter panels.
Key wordscomposite stiffened panel    secondary bonding    co-curing    buckling    post-buckling
收稿日期: 2016-09-07      出版日期: 2018-04-14
中图分类号:  TB303  
通讯作者: 徐荣章(1989-),男,硕士,助理工程师,主要从事机翼结构设计研究,联系地址:陕西省西安市阎良区人民东路1号第一飞机设计研究院(710089),E-mail:buaa_xrz@163.com     E-mail: buaa_xrz@163.com
引用本文:   
徐荣章, 凌晓涛, 贾利勇. 成型工艺对复合材料帽型加筋板轴压特性的影响[J]. 材料工程, 2018, 46(4): 152-157.
XU Rong-zhang, LING Xiao-tao, JIA Li-yong. Effect of Forming Process on Compression Characteristics of Composite Hat-stiffened Panels. Journal of Materials Engineering, 2018, 46(4): 152-157.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.000378      或      http://jme.biam.ac.cn/CN/Y2018/V46/I4/152
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