The effects of delamination deficiencies on compressive properties of composite grid-stiffened structures
被引:5
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作者:
Mo, Yihua
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机构:
Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian, Peoples R ChinaDalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian, Peoples R China
Mo, Yihua
[1
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Cheng, Gengdong
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Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian, Peoples R ChinaDalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian, Peoples R China
Cheng, Gengdong
[1
]
Wang, Bing
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机构:
Harbin Inst Technol, Ctr Composite Mat, 92 Xidazhi St, Harbin 150001, Heilongjiang, Peoples R ChinaDalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian, Peoples R China
Wang, Bing
[2
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Wang, Xiaohong
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Heilongjiang Institute Technol, Mech & Elect Engn Dept, Harbin, Heilongjiang, Peoples R ChinaDalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian, Peoples R China
Wang, Xiaohong
[3
]
机构:
[1] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian, Peoples R China
[2] Harbin Inst Technol, Ctr Composite Mat, 92 Xidazhi St, Harbin 150001, Heilongjiang, Peoples R China
[3] Heilongjiang Institute Technol, Mech & Elect Engn Dept, Harbin, Heilongjiang, Peoples R China
This article provides a systematic approach to accurately predict the effects of delamination deficiencies on compressive properties of composite grid-stiffened structures. The deformation of the stiffener and the skin is investigated during a mechanical test. Cohesive elements in the finite element method were employed to calculate the ultimate load-carrying capacity. The delamination deficiencies in the interface between the skin and the stiffener have a significant effect upon its ultimate load-carrying capability compared with the delamination deficiencies in the skin and in the stiffener.