Search results

Beams made from materials with different thermal expansion coefficients (TEС) have heated and bend due to stress moments directed away from the neutral axis of the bending beam.
Beam consists of two or more materials with different thermal linear expansion factor (α) is bending by heating at ΔTa.
Bimetallic thermostat theory [8] describes thermo-mechanical behavior of composite MEMS beams, consisting of two materials [9], [10].
To achieve the best project among other issues micro-mirror designers must be updated with areas related to the materials and technological processes work.
Journal of the Optical Society of America and Review of Scientific Instruments, Vol. 11, No 3 (1995), p. 233 [9] G.

The core materials are used to fabricate lightweight and stiff sandwich structures core [1].
Experimental Procedure Materials.
Measurements are used primarily to determine the composition of materials and to predict their thermal stability at temperatures up to 1000°C.
Generally, lignocellulosic materials decompose thermochemically between 150 and 350°C, cellulose between 275 and 350°C, and lignin between 250 and 500°C.
Journal of Tropical Forest Science 21(2): (2009).113–122 [7] Kawamoto, H.

The harmful crack may happen in mass concrete for the changes of temperature caused by hydration of cementitious materials.
Experimental Materials Cementitious materials include Portland cement and FA.
[2] Yuan Runzhang, Cementitious materials, Wuhan Wuhan University of Technology Press (1996) 121~122.
Quantitative analysis of fly ash-cement hydration by 29Si MAS NMR[J]．Journal of the Chinese Ceramic Society, 2010, 38(11)：2212~2216
Construction and Building Materials, 2009, 23: 1344~1348.

In micro-cutting process, a remarkable characteristic of micro-Cutting is that cutting parameters level closing to the crystal grain msize of material.
To regard the material extending on rake surface as the important factors of deformation[1], the value of slip strain can be calculated by formula as follow (8) Where is slip strain, is shear angle,is rake angle.
Acknowledgements Financial support from the Shanxi province nature science foundation(Grant No.:2008011056)., key lab for advanced manufacturing technology of Shanxi province open foundation(Grant No.:2007031007) and the Shanxi provincial level university youth discipline leader foundation.
Journal of Wuhan university of technology. 2010，34(1) [2] LI Xiaozhou.YU Huadong.

Wavelet Neural Network - based Research on Online Wearing Prediction of TI6AL4V Cutter in High Speed Milling Hongyu Zhu1,2, Weijin Chen3 and Ying Li1 1 College of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing, China, 210094 2 Nanjing College of Chemical Technology, Nanjing, China, 210048 3 Csr Qishuyanlocomtive & rolling stock research institute co.ltd, 213011 Keywords: Wavelet packets, Neural network, High speed milling, Ti6Al4V, Cutter wearing online prediction Abstract.
TI6AL4V is a kind of hard-machining material, which has bad thermal conductivity, good chemical reactivity, little elastic modulus, great friction coefficient, severe work hardening, short cutter life, low machining efficiency and poor machining surface quality.
But, from the point of machinability, TI6AL4V is a kind of hard-machining material.
Ôzel and et al.: International Journal of Machine Tools and Manufacture, Vol. 40 (2000), p.713

China 2 Mechanical Engineering School, Xi'an University of Science and Technology, Xi'an 710032, P.
Titanium is a metal material which has many excellent properties; it has been widely used in many fields.
The defects said are reduced rapidly and quickly, which is illustrated in 800# specimen in Fig.3a and 240# specimen in Fig.3b, resulting from the material removal because of abrasive grains involved.
Lv: Journal of Micromechanics and Microengineering Vol. 19 (2009), p: 1 [4] Information on http://www.bssa.org.uk [5] S.

According to its characteristics of working conditions, grinding ball’s material should be considered comprehensively as the following requirements: 1) To be sure that grinding ball must have longer service life, its material should have higher anti-wear property, namely it must have higher hardness; 2) During the ball grinding rotates, grinding balls fall down and directly impact on the other grinding balls, while they rise to a certain height along with the materials.
Grinding balls’ materials spall eventually along with crack producing and constantly expanding.
The results of the study indicate that, among many materials of metamorphic treatment, rare earth ferrosilicon alloy is the most effective metamorphic agent.
References [1] Casting and Wear-resistant Materials Research Institute of Xi’an Jiaotong University, Research on Wear Resistant Materials [A], FOUNDRY TECHNOLOGY
[5] Xiaoyan Ye, Xiaoping Jiang and so on, Fatigue Reliability Analysis on Crankshaft of Reciprocating Pump [J], CHINESE JOURNAL OF MECHANICAL ENGINEERING

Young: Journal of Aerospace Engineering, published online 2012 [2] R.
Bushnell: Journal of Aerospace Engineering, Vol. 217, No. 1, pp. 1-18 [4] R.
McFadden: Journal of Aerospace Engineering, Vol. 216 pp. 29 – 39 [7] H.
Sitzmann: Aerospace Science and Technology, Vol. 2, No. 1, (1998), pp. 1-12 [8] G.
McIlwain: Journal of Aerospace Engineering, Vol. 226 (2012), pp. 42 – 54

The characterizations of the activated carbon derived from these aforementioned materials have made them potential adsorbents for the adsorption process.
Science Total Environments, (2003), 3170: 207-233
Journal of Environment Management, (2006), 78, 107-113
Journal of Undergraduate Research, (2002), 3(10). 1-12
Journal of Colloid and Interface Science, (2004), 280, 322-333

Composite materials are mostly used in applications where stiffness-to-weight or strength-to-weight ratios are critical.
Introduction Nowadays trends in construction is to use lightweight and longlife materials, which makes FRP and sandwich composite materials to have a larger aplicability especially due to their strength and stiffness [1,2,3,4].
The shell is reinforced with longitudinal web stiffeners having various geometries and made out of various materials (composites, aluminum and steel).
Chirică, Numerical tests on the buckling of the plates made of composite materials, Proceedings: Modelling and optimization in the machines building field, Romanian Technical Sciences Academy 3, ISBN 1224-7480 (2006) 57-60
Chirică, Buckling of Composite Plates, chapter in Advances in composite materials - ecodesign and analysis, edited by Brahim Attaf, Ed.