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., had been a hot in the sand market, was widely used in building materials, coal and other departments [1,2].
The Material is crushed by the collision between great kinetic energy materials and the general materials or cutting board in whirl chamber.
The material fall into the rotor could be equally divided to every discharge port by separating cone in the rotor, butt ends is installed on the edge of the discharge port and usually made of high wear resistant materials to reduce the wear [4].
Acknowledgements This work was financially supported by Shandong Natural Science Foundation of China (grant No.
References [1] J.M.Zhang and F.Zhao: JOURNAL OF CHINA COAL SOCIETY, Vol.34 (2009), p.853.

Expanding Sidoroff damage model to 3D stress state, it was supposed that the damage of rock materials is a function of equivalent strain.[5-6]
Hence,the mechanical parameters of rock materials can be deteriorated by damage function related with equivalent strain[7,8].
Rock materials According to damage deterioration model of rigid rock mass and mechanical test results of rock materials, the parameters of rock materials in computation region were determined.
Advance in earth sciences(2004). ( In Chinese) [9] Ping Xu, Feng Zhang,Shuda Zhou.
Chinese journal of rock mechanics and engineering(2000). ( In Chinese)

In the future, the strain rate sensitivity of the inelastic heat fraction for both materials should be probed, therefore high speed tensile tests or Hopkinson bar tests could be used.
The Stored Energy of Cold Work, Progress in Materials Science, Vol. 17, p.5-177, 1973 [5] Macdougall, D., Determination of the Plastic Work Converted to Heat Using Radiometry.
On the strain and strain rate dependence of the fraction of plastic work converted to heat: an experimental study using high speed infrared detectors and the Kolsky bar, Mechanics of Materials, Vol. 17, p. 135-145, 1994 [7] Zehnder, A.
European Journal of Mechanics A/Solids 38, p.1-11, 2013 [9] Rosakis, P., Rosakis, A.
Journal of the Mechanics and Ohysics of Solids. 48, p.581-607, 2000 [10]Gesellschaft, VDI: VDI-Wärmeatlas. 10.

Materials and Methods Materials The PPTA hot-pressing paper was prepared with PPTA short-cut fibers and PPTA-pulp, hot pressed in laboratory.
Properties of new printed circuit board base materials [J].
Nordic Pulp and Paper Research Journal, 2010,25(4): 551-557
Insulating Materials, 2006, 39 (03): 18-22
Journal of Applied Polymer Science, 2004, 91(1): 417-424.

Optimization and Springback Control of Ultra-high Strength Steel Door Beam Forming Process Xu Zhang a, Jie Zhou b College of Material Science and Engineering, Chongqing University, Chongqing PR China 400044 a zxld220715@hotmail.com, bzhoujie@cme.cqu.edu.cn Key words: ultra-high strength steel; door beam; FEM; hot stamping; springback control Abstract: The door beam inside the car door is an key component to improve the security of passengers, most great automobile manufacturing companies use ultra-high strength steel plate to manufacture it，however, it is very difficult to form in room temperature，so commonly it is made by hot stamping but the cost is too high.
The analysis of door beam forming process The shape of the door beam part is shown in Figure 1, the material ultra-high strength steel Docol1200M from SSAB steel company of Sweden.
Reference [1] Maki, S., Harada, Y., Mori, K., 2003, Sinter-Joining of Different Metal Powder Compacts Using Resistance Heating, Journal of Materials Processing Technology, 143-144: 561-566
[6] IPPC: Climate Change 2007: The Physical Science Basis.
[14] Abedrabbo, N., Pourboghrat, F., Carsley, J.: Forming of aluminum alloys at elevated temperatures –Part 1: Material characterization.

Introduction In terms of thermal, mechanic, and optic features, diamond has the extraordinary characters even if compared to other materials[1].
Superhard Materials Engineering, 2010, 22(1): 22-30
Advanced Materials Industry, 2008(8): 49-54
New Carbon Materials, 2002, 17(1): 62-70
Influence of methane concentration on crystal growing process in CVD free standing diamond films[J]Journal of Inorganic Materials, 2007, (3):570-576

Conf. on ”New Heat Treating Technology of Metallic Materials”, Ed.: B.
Grum: Journal of Achievements in Materials and Manufacturing Engineering, Vol. 24, No. 1, 2007, p. 17-25
Vannes: Applied Surface Science, Vol. 205, 2003, p. 289–296
Kaplan: Applied Surface Science, Vol. 245, 2005, p. 316–321
Okabayashi: The 8th Congress on Heat Treatment of Materials, Heat & Surface´92, Ed.: Tamura, Tokyo, Japan, 1992, p. 441-444.

[3] Jun Wang, Ke Li, Da Shu, Xin He, Baode Sun, Qixin Guo, Mitsuhiro Nishio and Hiroshi Ogawa: Materials Science and Engineering Vol.
Hashmi: Journal of Materials Processing Technology, Vol.92-93 (1999), p.203-208
[6] Wangyu Hu, Meiheng Li and Masahiro Fukumoto: Materials Science and Engineering, Vol. 478 (2008), p.1-8 [7] R.S.Lima, J.
Pharr: Improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments J of Materials Research, Vol. 7 (1992), p. 1564-1580
Indentation fracture toughness of brittle materials for palmqvist cracks Fracture Mechanics of Ceramics, Vol. 5 (1983), p. 97-105

Materials and fabrication methods The glulam beams tested in this study are made of Northeast Dahurian Larch, with the average density of 0.55 g/cm3 and the average moisture content of 13%, referred to single-layer plank with specifications for 2100 mm x 150 mm x 30 mm.
Actually, glulam beams are composed of two materials, namely planks and structural adhesives.
In the following analyses, glulam is simplified as transversal isotropic materials in this paper.
Journal of Northeast Forestry University, 2011,39(6): pp. 49-51.
Wood Science and Technology, 2002,36(3): pp. 367-383.

Carol I, No. 22, 700506 Iasi, Romania 3 Gheorghe Asachi Technical University of Iasi, Faculty of Materials Science and Engineering, Blvd.
Mangeron 41, 700050, Iasi, Romania 4 Center of Excellence Geopolymer & Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia 5 Romanian Inventors Forum, Str.
The red lakes were made using madder (Rubia tinctorum), insects (Dactylopius coccus for cochineal, Kermes ilicis for carmine lake) or textiles coloured with these materials [1].
Materials and techniques The purpose of this paper was to analyze some of the lake used to cover the silver leaf in ecclesial art and the technique used to produce them in the first half of 19th century.
Picollo, The San Pietro Martire Triptych By Beato Angelico: Materials Characterization By Means Of Integrated Non-Invasive Spectroscopic Measurements, International Journal of Conservation Science, 4 (2013) 673-680.