Based upon a theoretical model for predicting the fatigue crack growth and the delamination growth in fiber reinforced metal laminates, the effects of some factors on the delamination growth rates, including the ply thickness, the residual stresses, the modulus of the fibers, the bonding strength and the shear modulus of the adhesive were estimated. It has been shown from the analysis that the delamination growth can be significantly improved by decreasing the ply thickness and the residual stresses in the constituent metal layers. The effects of the bonding strength and the modulus of the fibers are relatively small, and the effect of the shear modulus of the adhesive can be neglected.
Key words
fiber reinforced met /
delamination growth /
optimization analysi
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References
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郭亚军. 纤维金属层板的疲劳损伤与寿命预测: [博士论文]. 北京: 北京航空材料研究院, 1997
GUOYJ, WuXR. A Theoretical model for predicting crack growth in fiber reinforced metal laminates. Fatigue Fract Engng Mater Struct, 1998, 21: 1133～1145
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