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Functionally gradient materials Gear design more flexible, if 20 CrMnTiH hardness and wear-resisting performance does not meet the requirements,we can replace the materials meet the requirements.
Summary through the performance analysis of the functionally gradient materials Gear and the elemental heat treatment gear, verified the feasibility of functionally gradient materials applied in gear.
Ada-ptive Slicing of Heterogeneous Solid Mod-els for Layered Manufacturing.Journal of Material Processing & Manufacturin Science,1999,7(4):324-342 [4] R.Balendra,Net-Shape Forming Stateof the Art,Journal of Materials Proc-essing Technology, 2001, 115(2): 172–179
Journal of machinery engineer. 2008, 5:74-76
Journal of mechanical transmission, 2005, 29 (2) : 10 to 13

The Types and Characteristics of CFRP Materials Analysis of CFRP Materials Types.
It is widely used as structural materials and high temperature resistance ablative materials.
International Journal of Machine Tools and Manufacture,2003,(43):1087-1092
Journal of the Japan Institute of Metals, 2005, 69(12): 1064-1068
SAMPLE Journal, 2013, 49(2): 20-21

Multi-scale model support the design of new materials.
The proposed model predicts the aging elasticity of cement-based materials.
Multiscale modeling and simulation of composite materials and structures. 2007, Springer Science Business Media, LLC: New York
"Multi-scale digital-image-based modelling of cement-based materials."
[27] Lackner, R., "Multiscale prediction of viscoelastic properties of asphalt concrete," Journal of Materials in Civil Engineering, Vol. 21, pp.771-780, 2009.

Watson: Journal of Nuclear Materials Vol. 258-263 (1998), p. 329
Elio: Journal of Nuclear Materials Vol. 258-263 (1998), p. 74
Slattery: Journal of Nuclear Materials Vol. 258-263 (1998), p. 308
Vieider: Journal of Nuclear Materials Vol. 258-263 (1998), p. 160
Zhang: Journal of Materials Science Vol. 40 (2005), p. 2105

There exist multi-field coupling effect in prefabricated defects polymer materials under loading.
It is important to understand the rheological properties of such pyromagnetic effect in the loading material with visco-elastic plastic damage, which would be valuable for rational use of materials, design of new materials, production safety, and accident prevention, etc. [1, 2 , 3, 4, 5, 6, 7].
Natural Science Journal of Xiangtan University, Vol.19(3) (1997), p.29-37 （in Chinese） [2] L.W.
Damage theory and its application of prefabricated defects rheological materials (Science Press, Beijing 2001).
Natural Science Journal of Xiangtan University, Vol.24(3) (2002), p. 60-63（in Chinese） [4] Y.Z.

Phenol Degradation in the System of H2O2/Porous Tourmaline Composite Materials Can Lia, Yan Dingb*, Junping Meng and Lifang Zhao Institute of Power Source & Ecomaterials Science, Hebei University of Technology, Tianjin, 300130, China alicancl@126.com, bdingyan@hebut.edu.cn* Keywords: tourmaline, porous materials, composite materials, degradation Abstract.
Wang, et al.: Journal of Functional Materials.
Lu: Journal of the Chinese Ceramic Society.
Liu: Journal of Hazardous Materials.
Rodriguez, et al.: Journal of Hazardous Materials.

Even though normal material can cut the liner, and the loss of liner mass and radial velocity of fragments almost are the same, the greater density of cutting material is, the larger effect to liner and the shorter cutting time will be, which would make the cutting easier. 5 Conclusions (1)Numerical simulations of the formation of bar-cutting MEFP are carried out by finite element software, and the influence laws of cutting materials on the divergence angle of MEFP are analyzed.
Acknowledgements This work was financially supported by National Natural Science Foundation (51175481)and Natural Science Foundation of North University of China under Grant number (201101005).
Investigation of multiple explosively formed projectile technology [J].Ordnance Material Science and Engineering.2008, 31 (3), p.74～76.
Numerical Analysis of EFP Forming Multi-fragments Due to Cutting Reseau [J].Journal of Ballistics,2009,21(2), p.90～94.
Numerical Simulation and Experimental Research on Compact Shaped Charge [J].Chinese Journal of Explosives & Propellants, 2009, 32(5), p.46-49.

Wang: Journal of Experimental Mechanics Vol.18 (2003), p. 440 (In Chinese)
Stephansson: International Journal of Rock Mechanics and Mining Sciences Vol.40 (2003), p. 355 [3]R.
Bruhns: Mechanics of Materials Vol.39 (2007), p. 291 [4]D.L.
Han: Journal of Xi'an University of Technology Vol.18 (2002), p. 22 (In Chinese)
You: Journal of Geomechanics Vol.8 (2002), p. 179 (In Chinese)

Hoek-Brown rock mass material includes homogeneous isotropic rock mass material and severely weathered rock mass material[5]. severely weathered rock mass material and fracture zone are considered as isotropic material because rock mass material in this zone is broken and there is no predominant joint.
References [1] Panthi K K, Nilsen B.: submitted to International Journal of Rock Mechanics and Mining Sciences (2007) [2] Hoek E, Marinos P.: submitted to Tunnels and Tunnelling international (2000)
[3] Carranza-Torres C, Fairhurst C.: submitted to International Journal of Rock Mechanics and Mining Sciences (1999)
[4] Hoek E.: submitted to Journal of Geotechnical and Geoenvironmental Engineering (2001)
[5] Carranza-Torres C, Fairhurst C.: submitted to International Journal of Rock Mechanics and Mining Sciences (1999)

Properties of Samples from Polymer Materials Manufactured by the Additive Method V.T.
According to the technology of manufacturing products from polymeric materials, there are materials obtained by the method of casting, centrifugation, pressing, vibrocompression, as well as materials manufactured using frame technology [5–7].
In recent years, the efforts of researchers have been directed towards the creation of materials on additive technologies.
The physical, mechanical and operational properties of the same materials from different manufacturers may differ.
Journal of Applied Polymer Science 133 (30) DOI: 10.1002/app.43671 (2016)