| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 757634 | Chinese Journal of Aeronautics | 2015 | 7 Pages |
A mathematic model is proposed for predicting the dynamic properties of fiber reinforced plastic composites (FRP) with interphase. Dynamic properties mainly include loss factors and elastic moduli. The results of elastic moduli from the present model are compared with other models. Elastic moduli E11, E22, G12, G23 and loss factors η11, η22, η12 and η23 of FRP are calculated and a study of the effect of elastic modulus EI and loss factor ηI of interphase on dynamic properties in FRP is carried out here. In this paper, E11 linearly increases with EI, but the growth rate is slow. E22, G12, G23 increase rapidly for lower value of EI. The longitudinal loss factor η11 decreases with the increase of EI in the case of ηI < 0.0026. But η11 linearly increases with EI in larger range of ηI, ηI ⩾ 0.0026. On the contrary, transverse loss factor η22, transverse shear loss factors η23 and longitudinal shear loss factors η12 increase with increase of EI in the case of lower value of ηI, but decreases at larger value of ηI. And they also show insensitivity to EI at higher value.
