Compressive behavior of composite panels with deeply embedded delamination

FU Hui-min; PENG Bo

Compressive behavior of composite panels with deeply embedded delamination

FU Hui-min^,,
PENG Bo

Research Center of Small Sample Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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出版历程
- 收稿日期: 2011-06-24
- 修回日期: 2011-11-01
- 刊出日期: 2012-01-28

Compressive behavior of composite panels with deeply embedded delamination

FU Hui-min^,,
PENG Bo

Research Center of Small Sample Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: The compressive behavior of laminates with a deeply embedded circular delamination was studied numerically and experimentally. In the finite element analysis (FEA),virtual crack closure technique (VCCT) and B-K law were employed to simulate the delamination growth,and the contact of the two substrates was considered.The effect of the delamination size and through-thickness position on the compressive behavior of laminates with an artificially embedded circular delamination was discussed.It is found that the through-thickness position affects the buckling mode,which then strongly influences delamination growth speed and direction,as well as the dominant component energy release rate (ERR).The numerical results agreed well with the experimental results.
- composite /
- compressive failure /
- delamination propagation /
- buckling
Abstract: The compressive behavior of laminates with a deeply embedded circular delamination was studied numerically and experimentally. In the finite element analysis (FEA),virtual crack closure technique (VCCT) and B-K law were employed to simulate the delamination growth,and the contact of the two substrates was considered.The effect of the delamination size and through-thickness position on the compressive behavior of laminates with an artificially embedded circular delamination was discussed.It is found that the through-thickness position affects the buckling mode,which then strongly influences delamination growth speed and direction,as well as the dominant component energy release rate (ERR).The numerical results agreed well with the experimental results.
- composite /
- compressive failure /
- delamination propagation /
- buckling

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参考文献(12)

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