To understand the quasi-static and dynamic compressive mechanical behavior of two-dimensional SiCfi ber-reinforced SiC composites (2D-SiCf/SiC), their compressive behavior at room temperature was investigated at a strain rate from 10?4 to 104 /s, and the fracture surfaces and damage morphology were observed. The results show that the dynamic failure strength of 2D-SiCf/SiC obeys the Weibull distribution, and the Weibull modulus is 5.66. Meanwhile, 2D-SiCf/SiC presents a transition from brittle to tough with a decrease of strain rate, and 2D-SiCf/SiC has a more signifi cant strain rate sensitivity compared to the 2D-C/SiC composites. The failure mode of 2D-SiCf/SiC depends upon the strain rate.
参考文献
| [1] | R. Naslain .Design, preparation and properties of non-oxide CMCs for application in engines and nuclear reactors: an overview[J].Composites science and technology,2004(2):155-170. |
| [2] | Keisuke Fujii;Eiichi Yasuda;Takashi Akatsu;Yasuhiro Tanabe .Effect of characteristics of materials on fracture behavior and modeling using graphite-related materials with a high-velocity steel sphere[J].International journal of impact engineering,2003(9):985-999. |
| [3] | M. Futakawa;Y Tanabe;T. Wakui .Dynamic effect on strength in SiC_f/SiC_m composite[J].International journal of impact engineering,2001(1):29-40. |
| [4] | G.M. Owolabi;A.G. Odeshi;M.N.K. Singh .Dynamic shear band formation in Aluminum 6061-T6 and Aluminum 6061-T6/Al_2O_3 composites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2007(1/2):114-119. |
| [5] | Qida Bing;C.T. Sun .Modeling and testing strain rate-dependent compressive strength of carbon/epoxy composites[J].Composites science and technology,2005(15/16):2481-2491. |
| [6] | H. Zhang;K.T. Ramesh;E.S.C. Chin .High strain rate response of aluminum 6092/B_4C composites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(1/2):26-34. |
| [7] | Yuan, QL;Li, YL;Li, HJ;Li, SP;Guo, LJ .Quasi-static and dynamic compressive fracture behavior of carbon/carbon composites[J].Carbon,2008(4):699-703. |
| [8] | Yotte S.;Quenisset J.M. .Toughness characterization of damageable ceramic matrix composites[J].Composites, Part A. Applied science and manufacturing,1999(3):191-201. |
| [9] | Yulong Li;Tao Suo;Mingshuang Liu .Influence of the strain rate on the mechanical behavior of the 3Dneedle-punched C/SiC composite[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2009(1/2):6-12. |
| [10] | Liu, MS;Li, YL;Xu, F;Xu, ZJ;Cheng, LF .Dynamic compressive mechanical properties and a new constitutive model of 2D-C/SiC composites[J].Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing,2008(1/2):120-126. |
| [11] | 刘明爽,李玉龙,陶亮,徐绯,成来飞.两种致密度2D-C/SiC层向动态压缩性能试验研究[J].复合材料学报,2007(05):90-96. |
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