利用数值模拟方法研究了在冲击载荷作用下组份成分对称分布的功能梯度板的动态响应.梯度板材料为陶瓷颗粒增强的铝基复合材料(MMC).增强相体积分数随厚度服从指数定律连续分布,在对称分布条件下增强相体积分数分别在梯度板的前后表面达到最大值.结果显示,在这种功能梯度装甲板中,应力波的传播非常复杂,弹性和粘塑性波耦合在一起,反射拉伸波和卸载波的大小依赖于组份成分沿厚度的分布;等效塑性应变的幅值、动能、弹性应变能及耗散能随时间的变化规律与功能梯度材料组份成分沿厚度的变化密切相关.这些因素对强冲击载荷作用下功能梯度板的优化设计非常重要.
参考文献
| [1] | Bless S J, Satapathy S, Simha H. Ballistic impact behavior of SiC reinforced alnuminum alloy matrix composites [A].In: Meyers A, Murr L E, Staudhammer K P, et al, eds.Shock-Wave and High Strain Rate Phenomena in Material [M]. New York: Marcel Dekker Inc, 1992. 1051-1058. |
| [2] | Vaziri R, Delfosse D, Pageau G, et al. High-speed impact response of particulate metal matrix composite materials: An experimental and theoretical investigation [J]. International Journal of Impact Engineering, 1993, 13(2): 329-35. |
| [3] | Li Y, Ramesh K T, Chin E S C. Dynamic characterization of layered and graded structures under impulsive loading [J].International Journal of Solids and Structures, 2001,38(34-35) : 6045-6061. |
| [4] | Babaei R, Lukasiewicz S A. Dynamic response of a crack in a functionally graded material between two dissimilar half planes under anti-plane shear impact load [J]. Engineering Fracture Mechanics, 1998, 60(4): 479-487. |
| [5] | Parameswaran V, Shukla A. Crack-tip stress fields for dynamic fracture in functionally gradient materials [J]. Me chanics of Materials, 1999, 31(9): 579-596. |
| [6] | Rousseau C E, Tippur H V. Influence of elastic gradient profiles on dynamically loaded functionally graded materials:Cracks along the gradient [J]. International Journal of Sol ids and Structures, 2001, 38(44-45): 7839-7856. |
| [7] | Chakraborty A, Gopalakrishnan S. A spectrally formulated finite element for wave propagation analysis in functionally graded beams [J]. International Journal of Solids and Structures, 2003, 40 (10): 2421-2448. |
| [8] | Berezovski A, Engelbrecht J, Maugin G A. Numerical simu lation of two-dimensional wave propagation in functionally graded materials [J]. European Journal of Mechanics-A/Solids, 2003, 22(2): 257-265. |
| [9] | Liu G R, Han X, Lam K Y. Stress waves in functionally gradient materials and its use for material characterization [J].Composites Part B : Engineering, 1999, 30(4): 383-394. |
| [10] | Liu G R, Han X, Xu Y G, et al. Material characterization of functionally graded material by means of elastic waves and a progressive-learning neural network [J]. Composites Science and Technology, 2001, 61(10): 1401-1411. |
| [11] | Han X, Liu G R. Effects of SH waves in a functionally graded plate [J]. Mechanics Research Communications, 2002,29(5) : 327-338. |
| [12] | Bruck H A. One-dimensional model for designing functionally graded materials to manage stress waves [J]. International Journal of Solids and Structures, 2000, 37 (44): 6383-6395. |
| [13] | Huang J, Fadel G M, Blouin V Y, et al. Bi-objective optimi zation design of functionally gradient materials [J]. Materials & Design, 2002, 23(7): 657-666. |
| [14] | Ootao Y, Kawamura R, Tanigawa Y, et al. Optimization of material composition of nonhomogeneous hollow sphere for thermal stress relaxation making use of neural network [J].Computer Methods in Applied Mechanics and Engineering,1999, 180(1-2): 185-201. |
| [15] | Ootao Y, Tanigawa Y, Nakamura T. Optimization of material composition of FGM hollow circular cylinder under thermal loading: A neural network approach [J]. Composites Part Bi Engineering, 1999, 30(4): 415-422. |
| [16] | Cho J R, Ha D Y. Volume fraction optimization for minimizing thermal stress in Ni-Al2O3 functionally graded materials [J]. Materials Science and Engineering A, 2002,334(1-2): 147-155. |
| [17] | Cho J R, Ha D Y. Optimal tailoring of 2D volume-fraction distributions for heat-resisting functionally graded materials using FDM [J]. Computer Methods in Applied Mechanics and Engineering, 2002, 191(29-30): 3195-3211. |
| [18] | Nadeau J C, Ferri M. Microstructural optimization of a functionally graded transversely isotropic layer [J]. Mechanics of Materials, 1999, 31(10): 637-651. |
| [19] | 张佐光,霍刚,张大兴,等.纤维复合材料的弹道吸能研究[J].复合材料学报,1998,15(2):74-81.Zhang Z G, Huo G, Zhang D X, et al. Study on ballistic energy absorption of fiber composites [J]. Acta Materiae Compositae Sinica, 1998, 15(2): 74-81. |
| [20] | 顾伯洪.织物弹道贯穿性能分析计算[J].复合材料学报,2002,19(6):92-97.Gu B H. Analytical modeling of woven fabric under ballistic perforation [J]. Acta Materiae Compositae Sinica , 2002, 19(6) : 92-97. |
| [21] | Li Y, Ramesh K T, Chin E S C. The compressive viscoplas tic response of an A359/SiCP metal matrix composite and of the A359 aluminum alloy matrix [J]. International Journal of Solids and Structures, 1999, 37(51): 7547-7562. |
| [22] | Li Y, Ramesh K T, Chin E S C. Viscoplastic deformations and compressive damage in an A359/SiCP metal-matrix com posite [J]. Acta Materialia, 2000, 48(7): 1563-1573. |
| [23] | Prangnell P B, Roberts S M, Withers P J. The effect of particale distribution on damage formation in particulate rein forced metal matrix composites deformed in compression [J].Materials Science and Engineering A, 1996, 220(1-2) : 41-56. |
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%