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As for capabilities, especially fatigue resistance, titanium alloy is better than other materials.
Then stress, σ, is computed from the material constitutive equation
Rajurkar: International Journal of Machine Tools and Manufacture Vol. 53 (2012), p. 100-106
Yang: International Journal of Heat And Mass Transfer Vol. 41 (1998), p. 613-623
Liansheng: Chinese Journal of Aeronautics Vol. 23 (2010), p. 386-392

Infections are inevitable when implant materials are used.
Materials and Methods Porous titanium alloys preparation.
Gogia, Ti based biomaterials, the ultimate choice for orthopaedic implants – A review, Progress in Material Science. 54 (3) (2000) 397- 425
, European Cells and Materials. 11 (2006) 8 [7] X.
Furuki, Effects of Ti, Al, and V concentrations on cell viability, Materials Transaction. 39(10)(1998) 1053-1062

It can be seen from result that development and deformation of borehole elastic area mainly affected by ambiequal ground stress value, difference of ambiequal ground stress and rock material properties so on.
But for the nonlinear rock medium, material plastic deformation is a key mechanics parameter closely related to distribution patterns of borehole stress.
Journal of Oil and Gas Technology，2007，29（6）:115-119.
Chinese Journal of Rock Mechanics and Engineering.2008, 27(7):1321-1328.
(in Chinese) [4] Zhao Yizhong, Cheng Yuanfang, Zi Qingong, et al．Fluid-solid coupling simulation of deliverability of screening out fracturing under influence of multiple factors[J].Journal of Liaoning Technical University (Natural Science), 2009, 28(Suppl): 54-57.

About 50wt% of materials used in gas turbine compartment of an aerospace engine are nickel based super alloys [2].
Reference [1] E.O Ezugwu, I.R Pashby, “High speed milling of nickel based super alloys”, Journal of Materials processing technology, 33(1992) p429-437
Bonney, “An overview of aerospace engine alloys”, Journal of material processing technology, 134 (2003) p233-253
Teo “The Machinability of Inconel 718”, Journal of material processing technology, 63 (1997) 199-204
Daniel Kirby, “Surface roughness optimization in an end-milling operation using the Taguchi design method”, Journal of Materials Processing Technology, 184 (2007), p. 233

Fluid material properties include the density or molecular weight, viscosity, heat capacity, thermal conductivity, and mass diffusion coefficient, standard state and molecular motion parameters. (2) As the boundary conditions, the inlet and outlet pressure is set as 0 Pa, room temperature T 293K. (3) Initial values including pressure, velocity, and temperature and turbulence coefficient should be accorded with the real physical phenomena as far as possible to ensure convergence and accuracy.
Acknowledgements This research was supported by the National Natural Science Foundation of China (51075065), and the Key Laboratory of Mechanical and Electronic Engineering Foundation of Liaoning Province of China (JX-200912).
Journal of Engineering for Industry,Vol. 118, (1996), p. 137-141 [2] S.C.Xiu, C.H.Li, Z.R.Pang and G.Q,Cai: Journal of Northeastern University(Natural Science), Vol. 28 (3),(2007), p.393-396 [3] S.C.Xiu, Y.D.Gong and G.Q.Cai: Advanced Materials Research, Vol. 53-54,( 2008),p.209-214 [4] C.C.
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This technology provide timely, accurate and comprehensive basic geographic information data and statistical analysis for geological hazards emergency management science decision-making, disaster assessment, rescue, restoration and reconstruction[9, 10].
Acknowledgements This work was financially supported by Soft Science Project of Ministry of Land and Resources of the People’s Republic of China (201213&201246), Social Sciences Planning Project of Chongqing Municipality (2011ZDGL12), Science and Technology Planning Project of Chongqing Municipality (cstc2011cx-rkxA00076), Science and Technology Project of Chongqing Municipal Land Resources and Housing Bureau (Study on Key Technology of Housing Price Monitoring and Application Demonstration based on GIS), Key Preliminary Project of Chongqing Municipal Land Resources and Housing Bureau (Research on Urban Construction Land Intensive Use Planning) and 2010 Science and Technology Planning Project of Chongqing Municipal Land Resources and Housing Bureau Municipality(Research on Association between Land Supply and House Price under City Expanding).
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Experimental Materials.
Chemical composition of materials used (wt.%).
Morsi: Materials Science and Engineering: A Vol. 299(2001), p. 1
Dreizin: Journal of Materials Science Vol. 53(2018), p.1178
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If the material is tensioned, the damage will accumulate and the brittle fracture will occur when the stress in material meets with maximum principle stress criterion.
C soil B A blasthole explosive 4.0m 1.5m 3.5m 1.0m rock soft layer 2 bottom of the balsthole soft layer 1 (a) Platform of calculation model (b) Envisage of calculation model (c) 3-D view of calculation model Fig.1 Scheme of calculation model Model and Parameter of Materials.
Journal of Applied Geophysics Vol.61(2007),p. 1-15 [2] Cai, M. and Kaiser, P.K.: Assessment of excavation damaged zone using a micromechanics model.
International Journal of Rock Mechanics and Mining Sciences Vol.39 (2002), p. 165-184
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