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Based on Mechanics of Materials, with Eq., the strain at x on the upper surface of the beam can be written as, (8) Strain uniformity Substituting Eq.(1) and Eq. into Eq., then the relationship between the strain ε and Fz can be written as, (9) For the rectangular beam with the same dimensions, the strain can be expressed as, (10) where is the strain of the rectangular beam.
Acknowledgements This work was financially supported by the National Natural Science Fund of Shaanxi Province（No.2011JM8028）, the Scientific Research Plan Projects of Shaanxi Education Department(No.11JK0952) and the Scientific Research Foundation for the Doctoral Program of Xi’an Shiyou University(No.2011BS001).
Heng, Journal of Beijing University of Aeronautics and Astronautics 11 (2006) 1369-1372.
Xiaoyi, Chinese Journal of Scientific Instrument 1 (2006) 42-44.
Guo-jun, Laser Journal 1 (2005) 26-27.

The phases of the micro constituents (dispersoids) present in the specimens also control the wear behaviour of materials in a slurry environment.
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Huang1, 2, c 1College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, P.R.
China 2Shandong Provincial Key Laboratory of Polymer Material Advanced Manufacturing Technology, Qingdao University of Science and Technology, Qingdao, 266061, P.R.
When a 20 tons liquid chlorine liquefied gas tanker in a company limited of materials discharge liquid on August 17, 2005, the relief valve of the liquefied gas tanker suddenly took off, and a big amount of chlorine gas leaked from the relief valve place, which produce the bad feeling and the surrounding environment pollution.
In some environmental media, corrosion or corrosion mild doesn’t occur on the surface of most metal materials, but in the individual point or small area, erosion holes or hemp dots will appear, and with the passage of time, the erosion holes or hemp dots develop deeper and deeper constantly, and form the pits.
Chen: Journal of Xiamen University Vol. 41 (2002), p. 9 [15] X.B.

So the raw material molar ratio should be controlled properly.
Acknowledgments This work was supported by the University-Industry Cooperation Project about Water Treatment Materials of Guangdong Province (No. cgzhzd1004) and Science and Technology project of Guangzhou (No.2010Z1-E141).
Song: Journal of Hubei University of Technology, Vol.27 (2012) No.2, p.64
Huang: Central South University (Science and Technology), Vol.26 (2006) No.5, p.252
Huang: Journal of Beijing Institute of Petro-chemical Technology, Vol.14 (2006) No.2, p.58

Introduction Magnetorheological（MR） elastomers (MREs) are smart composite materials whose shear modulus can be controlled rapidly, continuously, and reversibly by applying an external magnetic field [1,2].
They comprise microsized magnetic particles dispersed in elastomers or rubberlike materials.
Smart Materials and Structures 19(3): 035002
Journal of Intelligent Material Systems and Structures 21(10): 1039–1047
Journal of Intelligent Material Systems and Structures 21(15): 1471–1477

Wilkins[4] holds the opinion that many materials show a relatively high toughness in the high-pressure state, and thereby the plastic flow and the temperature rise occurs under the high pressure of the dynamic loads, thus to weld partially among adjacent particles.
Acknowledgements This paper is supported by Zhejiang Provincial Natural Science Foundation of China (Y1110877), the Scientific Research Fund of Ningbo University (XKL11D2059).
[6]Fei Dong.Johnson-Cook Constitutive Model by Finite Element Analysis [J].Journal of Shanghai University,2011,1
[7]Jianzhong Wang.Study on High-speed Press Forming and Densification Rules of Iron Powder and Copper Powder [D].Beijing:University of Science and Technology Beijing,2009
High strain rate compressive behavior of aluminium alloy foams[J].International Journal of Impact Engineering, 24: 277-298.

Experimental Materials Jute fibers were supplied by Suzhou Mbary Advanced Natural Fiber Co., Ltd. in Jiangsu Province of China.
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The peak value of the von mises equivalent welding residual stress reaches the yield strength of material, and appears at the dangerous point of earplate welded joint under structural external load.
Acknowledgements This work was supported by the Natural Science Foundations of China through its Key Research Program (No. 50830203), the National Natural Science Foundation of China (No. 51308430), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (No.20110143120003).
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Among all abrasive materials, CBN is the second hardest material and has the great abrasion resistance for high grinding speed with minimal tool wear [1,2,3].
References [1] Johnson, G.A.: CBN Wheel Grinding: Journal of Metals – Forum Features.
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