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The use of Eulerian analysis helps prevent the excessive distortion of elements for the materials like water and gases, especially the important information of the flows surrounding bubble during the collapse phase is investigated successfully.
All the faces of Elerian domain are fixed to prevent the materials flowing out, and the Eulerian boundary, type nonreflecting, is applied for all the side boundaries of Elerian domain to eliminate the reflection of pressure waves.
Since the quantitative characterization is suitable for other explosive charge types, weights, and depths, so for further study, authors propose to expand the applicability of the result of this paper to real condition, like the interaction between underwater explosion bubble and structures with different types of materials.
Yu, Dynamics of three-dimensional underwater explosion bubble, Journal of Sound and Vibration, Vol. 311 (2008), pp.1196-1212
Hung, Dynamics of an oscillating bubble near a floating structure, Journal of Fluids and Structures, Vol.21 (2005), pp.395-412.

Fan, G., Gao, L., Hussain, G., Zhaoli, Wu, “Electric hot incremental forming: a novel technique” International Journal of Machine Tools and Manufacture, 48 (15), p. 1688-1692, 2008
Arruebarrena, “Warm incremental forming of magnesium alloys using hot fluid as heating media” Key Engineering Materials Vols. 504-506, 2012
Anderson Daleffe, Lirio Schaeffer, Daniel Fritzen and Jovani Castelan, “Analysis of the Incremental Forming of Titanium F67 Grade 2 Sheet”, Key Engineering Materials Vols. 554-557 (2013) pp 195-203 [5].
J.J.Park Y.H.Ji, "Formability of magnesium AZ31 sheet in the incremental forming at warm temperature" Journal of Materials Processing Technology, vol. 210, no. 354–358, pp. 354-358, 2008
Chu, Chuanxian Ding “Surface modification of titanium, titanium alloys, and related materials for biomedical applications” Materials Science and Engineering R 47 (2004) 49–121.

These are due to the differences in complex refractive indices of the nanoparticle materials.
with known materials but unknown particle size, it may be feasible to use light at low wavelengths to identify the sizes of nanoparticles in the nanofluids.
Morfesis, Light scattering and nanoparticles, Materials Today, 12(5) (2009) 52-54
Delfani, Thermo-optical properties of copper oxide nanofluids for direct absorption of solar radiation, Solar Energy Materials and Solar Cells, 144 (2016) 136-142
Weber, Handbook of Optical Materials, Taylor & Francis, 2002

In order to research conveniently, the ideal state is set: assuming that the variable cross-section rod is composed of homogeneous, isotropic materials, omitting the mechanical loss.
Table 1 The parameters of workpiece materials material mass density ρ(kg/m3) elastic modulus E(Gpa) Poisson's ratioγ 20# 7850 200 45# 7850 209.2 0.27 Fig. 2 Workpiece design The three-dimensional physical model of the horn and the workpiece combination is established, as is shown in Fig. 3.
[2] Z.M.Lin: Theory and Design of Ultrasonic horns[M](Beijing Science Publications, China 1987)
[4] Amin.S.C: Journal of Materials Processing Technology,Vol.55 No.3(1995), pp.254-260
[5] J.C.Y, X.F.W and K.H: Journal of Harbin Institute of Technology, Vol. 29 No.4(1997), p.119

Traditional machining technologies, however, find it challenging to machine such materials.
The (WEDM) technique converts electrical energy into thermal energy for cutting materials using a thin wire as an electrode.
Various wire EDM industrial uses for a variety of materials have been documented.
Qu, “Investigation of the spark cycle on material removal rate in wire electrical discharge machining of advanced materials,” Int.
S., “Optimisation machining process parameters in wire cut EDM,” International Journal of Innovative Research in Science, Engineering and Technology, vol. 5, special Issue 8, May, (2016) [9] H.

Figure 2-1, 3D CAD model of the brake assembly Figure 2-2, Brake assembly finite mesh model Material Property and Addition of Boundary Condition The analysis of Model Material and Test data QT450 is the material used in the key components calipers and brackets.
Material data of bolt and brake pad is shown as the table 3-1 Table 3-1 Material Property Parameter Bolt Brake Pad Elastic Modulus [GPa] 200 3.7 Poisson Ratio 0.3 0.25 Constraint and Load In the process of the experiment, a specific load is selected to do the comparative analysis in this simulation analysis because the applied load varying each time (It is impossible to precisely control the application of load in the fatigue test stand for the brake).
Xey En-gineering Material，V270-273，nⅡ, Advances in Nondestructive Evaluation．2004: 1472-1477
Journal of Nanjing University of Science and Technology 2003,27(06):756-758
[5] Tirovic M, Day A J．Disc brake interlace pressure distributions[J]．Journal of Automobile Engineering. 1991:137-146

In turn, the stresses are affected by the properties of the constituent materials.
Acknowledgement This work was supported by the National Natural Science Foundation of China and Ertan Hydroelectricity Company ( Grant No. 50539030).
AIAA Journal Vol. 34(1996), p1905 [2] K.
Metallurgical and Materials Transaction A Vol.29(1998), p1127
Internation Journal of Solids and Structure.Vol. 37(2000), p1577

Test Scheme Test Materials and Equipment.
The GFRP bar has been used in this test is produced by Ministry of Education Research Center of Fiber Composite Materials and Structure Engineering, Zhengzhou University, and the diameter of GFRP is 18mm.
Conclusion GFRP is brittle material and have no yield stage.
He, FRP main experimental study on the performance of soil nailing, China Civil Engineering Journal, 40 (2007) 74-78
Chen, GFRP reinforcement stretch mechanics performance test research, Building Science, 28 (2012) 43-44

Pieczonka 3,d 1 Department of Materials Engineering and Industrial Technologies, University of Trento, via Mesiano 77, 38050 Trento, Italy 2 Cracow Technical University, Al.
Jana Pawla II 37, 31-864 Krakow, Poland 3 AGH University of Science and Technology, Department of Metallurgy and Materials Engineering, Physical and Powder Metallurgy Research Unit, Al.
German: The international Journal of Powder Metallurgy Vol.34 No.1 (1998) p.40
[3] A.Molinari, G.Straffelini, T.Pieczonka, J.Kazior: The international Journal of Powder Metallurgy Vol.34 No.2 (1998) p.21
[4] F.Velasco et al.: Proceedings 1995 European Conference on Advanced PM Materials, ed EPMA, Bellstone Shrewsbury UK, Vol.1 p.65

Study of Intelligent Evidence Management System Liu Feng1, a, Wu Xing1, b*, Pan Nan1, Zhou Jun1, Liu Yi2 1Faculty of Mechanical & Electrical Engineering, Kunming University of Science & Technology, Kunming 650500 2Kunming Snlab Tech Co.
Introduction Facts of a case are proved by the physical evidence with its external characteristics and material properties [1] in the public security department.
Evidence Science [M].
Journal of Beijing People's Police College, 2010, 1 (1)
Journal of Jiangxi Public Security College, 2007 (6)