Compressive behavior of composite panels with deeply embedded delamination

Compressive behavior of composite panels with deeply embedded delamination

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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. 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.

作者 FU Hui-min PENG Bo

机构地区 Research Center of Small Sample Technology

出处《航空动力学报》 EI CAS CSCD 北大核心 2012年第1期82-88,共7页 Journal of Aerospace Power

关键词 COMPOSITE compressive failure delamination propagation BUCKLING VCCT(virtual crack uosure technique) composite compressive failure delamination propagation buckling VCCT （virtual crack uosure technique）

分类号 V258.3 [一般工业技术—材料科学与工程] TB322 [一般工业技术—材料科学与工程]

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Compressive behavior of composite panels with deeply embedded delamination

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