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However, it is difficult to machine composite materials with high efficiency to yield good-quality products.
Machining the composite materials leads to various problems because of the presence of fiber to increase the strength.
In these types of materials machining the hole to proper dimension is a difficult one.
Prabhakar, Effect of particle size of SiC in aluminium matrix on workability and strain hardening behaviour of P/M composite, Material Science and Engineering: A, 504 (1-2), pp.13-23, 2008
Bhattacharayya, A study on machinability of Al/SiC-MMC, Journal of Materials Processing Technology 140, pp.711–716, 2003

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Materials, 2014. 7(4): p. 2833
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Materials Science in Semiconductor Processing, 2015. 31(Supplement C): p. 446-454
Journal of King Saud University - Science, 2016
Materials Science and Engineering: C, 2017. 72(Supplement C): p. 543-550

Experimental Procedure Materials used: Ordinary Portland Cement (43 Grade) was used throughout the investigation.
ARPN Journal of Engineering and Applied Science, VOL.3, NO.5, October 2008
[3]S.C.Pal, Abhijit Mukherjee, and S.R.Pathak:ACI Materials journal,V.99.No.6, Nov-Dec2002 [4]V.S.Ramachandran, “Concrete Admixtures Handbook” Institute for Research in Construction, National Research Council Canada, Ottawa, Ontario, Canada
[5]David N.Richardson, University of Missouri-Rolla, R199-035/R199-035B [6]S.Pavia and E.Condren, Journal of Materials in Civil Engineerig, April 2008. pp313-320 [7]Richardson, David N., University of Missouri-Rolla, (2006) Report 06-008, Jefferson City, USA
International Journal of Physical Sciences Vol.1 (3), pp. 112-120, November, 2006 [9]Wang Ling, Tian Pei, and Yao Yan, China Building Materials Academy, PRC [10]M.Shariq, J.Prasad and A.K.Ahuja, Asian Journal of Civil Engineering, Vol.9, No.1.pp61-74 2008.

For this goal some researchers have tried a number of instruments and materials to promote the situation such as using the UV-light and using the microwave to catalyze the oxidation process by kinds of materials [3-6].
Materials and methods 2.1 Experimental The dye is Reactive Brilliant Red X-3B(C19H20Cl2N6Na2O7S2, analysis of pure, λmax 536 nm).
Materials Science 2013, 764:116-129 [11] Lei Zhang, Xinyu Zhou, Xingjia Guo et al.
Journal of Hazardous Materials 2010, 184: 704-709
Optimization of process variables for decolorization of disperse yellow 211 by bacillus subtilis using Box-Behnken design[J].Journal of Hazardous Materials 2009, 164:1024-1029 [21] Sun Zhenshi, Chen Yingxu, Ke Qiang et al.

Transition metal carbides seem to be a promising substitute as these materials exhibited surface’ characteristic and catalytic behavior similar to platinum [1,2].
Electron Spin Resonance (ESR) spectroscopy is an efficient, sensitive and non-destructive technique to characterize the interaction of unpaired electron in the matrices of solid materials.
This characterization method was also used to study the effect of doped metals or ions to the surface of materials, as in potassium doped on SWCNT, MoVSbO and V2O5/ZrO2 respectively [12,14].
Science, 181(1973)547-549
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Mixture ratio design of high modulus asphalt Raw materials.
The Mineral aggregates used in the experiment are limestone quality materials, originally from Guojiadian, Yushu City, Jilin Province.
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VERIFICATION OF FEM MODELLING CAPABILITIES ALLOWING FOR THE EFFECTS OF STRAIN RATE * STOPEL Michal1,a *, SKIBICKI Dariusz1,b, MOCKO Wojciech2,c 1University Of Science And Technology in Bydgoszcz, al.
This phenomena is also the subject of studies related to composite materials due to fact that composites are widely used as an energy absorbers in road safety structures [6].
One of the most important factors in preparation of the analysis is to select a suitable material model to allow for the effects of strain rate on the changes in material properties.
One of the material models allowing for the effects of strain rate is the model developed by G.R.
A simplified Johnson-Cook model was used as a material model with the material parameters determined based on the strength tests [4].

The Dynamic Responses of Anti-slide Piles Reinforced in the Rubble Soil Landslide Feng Sun 1,2,a Jiming Kong 1,b, Qiang Cai1,2 Fayou A 1,2 , Yun Cui 1,2 1 Institute of Mountain Hazards and Environment, Chinese Academy of Science/ Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Science Chengdu 610041,China 2Graduate University of Chinese Academy of Sciences, Beijing 100101 a iamsunfeng12345@sina.com, b jimingk@imde.ac.cn Foundation item: Transportation Department of Yunnan of the Science and Technology Project (2010)(A)08-b; National Natural Science Foundation of China (50636087) Author Biography: Feng Sun (1979—), Liaoning province Kaiyuan person, Male, Doctor, Major in slope engineering of engineering geology and geotechnical engineering.
Table 1 Physico—mechanical parameters for Material material Specific weigh (kN/m3) elasticity coefficien (MPa) Poisson ratio angle of internal friction (º) cementing power (kPa) slippery body 18.5 17 0.31 24.1 25 sliding face (belt) 17.7 15 0.36 18.71 15.1 slippery bed 22.4 2200 0.24 38.6 500 pile 25 30000 0.2 consideration for elastomer material Fig.1 Sketch of landslide model This landslide locates that the local earthquake basic intensity is Ⅷ.
Acknowledgements Foundation items are Transportation Department of Yunnan of the Science and Technology Project (2010)(A)08-b and National Natural Science Foundation of China (50636087).
Reference [1] Kong Jiming,Cui Yun,Tian Sujun etal．Typical case study on the development characteristics of fragmentation sliding seismic landslide[J].Journal of Sichuan University: Engineering Science Edition, 2009, 41(3):119－124
The typical examples analysis the types of Wenchuan Earthquake landslide［J］.Journal of Soil and Water Conservation, 2009, 23 ( 6) : 66 －70 [5] Zheng Yingren, Zhao Shangyi.

Acknowledgement This work was financially supported by Natural Science Foundation of China (41202191), China Postdoctoral Science Foundation (2012M520079, 2013T60868), Doctoral Fund of Ministry of Education of China (20110205130001, 20120205120001) and Natural Science Foundation of Shannxi Province of China (2011JM7002).
Journal of Constructional Steel Research，2002, 58(3): 353-372
Journal of Structural Engineering, ASCE, 2004, 130(2): 180-188
Journal of Constructional Steel Research, 2007, 63: 37-44
Journal of Railway Science and Engineering, 2007, 4(6): 12-18