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Part of the materials would go up in the machine after obtaining energy and get down after collide the feed, and then were crashed by the crushing hammers again.
The liberation mechanism of PCB materials Waste PCB materials are considered as the dual structure of metals and non-metals.
The purpose of impact crushing is to liberate metals whose principal component is copperfrom the cladding materials or composite laminates such as resin, fiberglass and plastics.
References [1] Cui Jirang, Forssberg Eric: Journal of Hazardous Materials, Vol.99 (2003), p.243-263 [2] DUAN Chen-long, ZHAO Yue-min, TANG Li-gang, et al: Journal of Central South University, Vol.40 (2009), p.78-82.
Vol.21 (2004), p.99-102 [4] Chenlong Duan, Xuefeng Wen, Changsheng Shi, et al: Journal of Hazardous Materials, Vol.166(2009), p.478-482 [5] ZHAO Yue-min, WANG Quan-qiang, JIAO Hong-guang, et al: Journal of China University of Mining & Technology, Vol.34(2005) , p.683−687.

Linear elastic fracture mechanics (LEFM) can be used for description of crack propagation in brittle materials.
Llanes: Journal of the Europian Ceramic Society Vol. 27 (2007), p. 1443
Máca: Journal of Material Science Vol. 42 (2007), p. 6404
Hutař: Computational Materials Science Vol. 46 (2009), p. 614
Ševčík, et al.: Computational Materials Science Vol. 64 (2012), p. 225.

For that, different materials were used as armors such as: kevlar epoxy, polyethylene, glass epoxy, steel-1006 and Al2O3 ceramic.
Table 6: Liner materials density.
The next simulation will be about protective shield materials which can use in armored vehicle (shielding).
Simulation process of protective shield materials into shaped charge jet.
References [1] Marc, A.M., John, W., Dynamic behavior of materials, University of California, 1996

Determination of Gruneisen EOS of MSN alloy steel under high pressure, Journal of Beijing Institute of Technology, 2(2003) 154-157
[4] Changguo Tang, Jinhua Zhu, Huijiu Zhou, A phenomenon and analys is of plasticity-increasing induced by high strain rate for some metallic materials , Chinese Journal of Materials Research, 1(1996) 19-24
[7] Haijun Wu, Wei Yao, Experimental investigation on spall fracture of 30CrMnSiNi2A steel, Journal of Beijing Institute of Technology, 1(2010) 1-7
Rinehart, Some Quantitative Data Bearing on the Scabbing of Metals under Explosive Attack, Journal of Applied Physics, 3(1951) 555-560
Williams, The Analysis of Dynamic Fracture Using Lumped Mass-spring Model, International Journal of Fracture,1(1987) 47-59

These materials are important not only because of their unconventional properties which depend on dimensionality, but also because these materials can be useful for many technological applications.
Lin, et al., CdS nanoparticles chemically modified PAN functional materials: Preparation and nonlinear optical properties, European Polymer Journal. 45 (2009) 1058-1064
Ganguli, P. a Ramakrishnan, Synthesis of Inorganic Solids Using Microwaves, Chemistry of Materials. 11 (1999) 882-895
Stoll, et al., The electrophoretic Deposition of Inorganic Nanoscaled Materials, Journal Of The Ceramic Society Of Japan. 14 (2006) 1-14
Liu, A review on fundamentals and applications of electrophoretic deposition (EPD), Progress in Materials Science. 52 (2007) 1-61

Introduction Most cushioning materials exhibit nonlinear mechanical properties.
It should be noted that, when being compressed, the commonly used cushioning materials (e.g., EPS materials, EPE materials, plant fiber composite materials and corrugated cardboard) will exhibit characteristics with three different regions, i.e., linear elastic deformation region, collapse plateau region and densification region.
The foundation is connected with products via the studied cushioning materials.
All the curves for relationship between compression stress and strain for EPS materials, EPE materials and plant fiber composite materials have three regions (i.e., linear elastic deformation region, collapse plateau region and densification region) with different characteristics.
Xi: Packaging Technology and Science, Vol.11 (1998), pp.189-202

Experimental Materials.
Journal of Macromolecular Science, Part A: Pure and Applied Chemistry 2010;47(8):794-803
Journal of Materials Science 2010;45(1):158-167
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering 2009;25(9):12-15
Reviews on Advanced Materials Science 2006;12(2):160-165

Optimum condition achieved then the process design complete SOLIDCast let the user starts with a ‘naked’ casting without gating and riser, with help form the Gating Design Wizard and Riser Design Wizard, which is based on real results and considering the casting materials, molding materials, and other auxiliary process measures, can get approximate results quickly.
Journal of Materials Processing Technology 105.1 (2000): 128-133
Journal of materials science, 1989, 24(5): 1777-1781
Modelling and Simulation in Materials Science and Engineering, 2002, 10(1): 1
Journal of Materials Processing Technology, 2008, 199(1-3): 256-264.

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Low: Journal of Vacuum Science & Technology B, Vol. 30 (2012) No.1, p. 010801
Lee: Journal of Materials Science, Vol. 42 (2007) No.12, p.4428-4434
McIntyre: Journal of Materials Engineering and Performance Vol. 13 (2004) No.4, p.451-460
Altana and Arne Schleunitz: Journal of Vacuum Science & Technology B, Vol. 30 (2012) No.6, p.06FB09
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