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Outline
The penetration and perforation of FRP laminates struck transversely by cone-nosed projectiles has been theoretically investigated. Based upon the assumption that the deformation is localized, the mean pressure offered by the laminate targets to resist the projectiles can be decomposed into two parts: one part is a cohesive quasi-static resistive pressure due to the elastic-plastic deformation of the laminate materials and the other is a dynamic resistive pressure arising from velocity effects. Furthermore, Wen's model has been developed by assuming that the resistance of the FRP laminate is no longer a constant, but a function of penetration velocity. Equations are obtained for predicting the depth of penetration, the residual velocity and the ballistic limit in the case of perforation. It transpires that the theoretical predictions are in good correlation with available experimental data in terms of penetration depth, residual velocity and ballistic limit.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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