基于纤维增强复合材料(FRC)层合板高速冲击下横向变形及破坏模式的分析,根据冲击动力学理论和应力波传播特性,建立了FRC层合板柱形弹高速冲击下的两阶段(剪切侵彻和连续侵彻)侵彻动力学分析模型.采用瞬态梯度变形锥理论分析了连续侵彻阶段的弹、靶相互作用,并编制相应计算程序,通过计算结果与实验测试结果的综合比较,弹体初速在300～900 m/s范围内,剩余速度误差小于50 m/s,验证了两阶段侵彻模型的适用性和稳定性,分析了实验现象,如梯度变形锥、背层花瓣开裂和面背层破坏模式差异等的产生及形成机理,提出了提高现有层板结构抗弹性能的新途径,如降低层间粘结强度、提高面层纤维的抗剪能力等.
参考文献
| [1] | Cantwell W J,Mortan J.Impact perforation of carbon fiber reinforced plastic[J].Composite Science and Technology,1990,30(4):38-49. |
| [2] | Cantwell W J,Morton J.The influence of varying projectile mass on the impact response of CFRP[J].Composite Structure,1989,13(5):101-104. |
| [3] | Bless S J,Benyami M,Hartman D.Penetration through glassreinforced phenolic[A].Proc 22nd Int SAMPE Tech Conf[C].Boston,1990.293-303. |
| [4] | Morye S S,Hine P J,Duckett R A.Modelling of the energy absorption by polymer composites upon ballistic impact[J].Composite Science and Technology,2000,60(7):2631-2642. |
| [5] | Taylor W J,Vinson J R.Modelling ballistic impact into flexible materials[J].AIAA Journal,1990,28(12):2098-2103. |
| [6] | Wilde A F,Roylance D K,Rogers J M.Photographic investigation of high-speed missile impact upon nylon fabric,part Ⅰ[J].Textile Research Journal,1973,43(11):753-765. |
| [7] | Jacobs M J N,Dingenen J L J V.Ballistic protection mechanisms in personal armour[J].Journal of Material Science,2001,36(5):3137-3142. |
| [8] | Espinosa H D,Lu H C,Zavattieri P D.A 3-D finite deformation anisotropic visco-plasticity model for fiber composites[J].Journal of Composite Materials,2001,35(5):369-410. |
| [9] | 梅志远.舰用轻型复合装甲结构防护机理研究[D].武汉:海军工程大学,2004.65-70.Mei Zhiyuan.Study on the mechanism of protective action of warship's light composite armor system[D].Wuhan:Naval University of Engineering,2004.65-70. |
| [10] | Jenq S T,Wang S B.A model for predicting the residual strength of GFRP laminates subject to ballistic impact[J].Journal of Reinforced Plastics and Composites,1992,2(4):1127-1141. |
| [11] | Wu E,Chang L C.Woven glass/epoxy laminates subject to projectile impact[J].International Journal of Impact Engineering,1995,16(4):607-619. |
| [12] | Shim V P W,Tan V B C,Tay T E.Modelling deformation and damage characteristics of woven fabric under small projectile impact[J].International Journal of Impact Engineering,1995,16(4):585. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%