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Eq. 2 was used to choose coded values and levels of factors involved in the design of experiments
Summary RPC is a promising building material that has a significantly improved microstructure, mechanical properties, and durability.
Effect of key mixture parameters on flow and mechanical properties of reactive powder concrete.
Investigation on Mechanical Properties of Reactive Powder Concrete under Different Curing Regimes.
Mechanical properties and spalling at elevated temperature of high performance concrete made with reactive and waste inert powders.

An experimental and theoretical study [2] was carried out to investigate the influence of tube material properties, punch diameter, tube-wall-thickness and tube internal pressure on the deformation behaviour during the piercing.
Uniaxial tensile tests were conducted to determine the mechanical properties of the DP600 tube in accordance with ASTM-E8 specifications, and tensile specimens were taken from the tube in a direction parallel to the tube axis.
Mechanical properties of the DP600 steel tube Parameters ρ ( kgm3) E (GPa) σY0 (MPa) K (MPa) n υ Values 7800 207 405 1030 0.16 0.29 3.1 Finite element modelling.
The GTN parameters were calibrated based on both micro-mechanical and macro-mechanical tests.
In particular, the ultimate displacement (corresponding to maximum load) and the rate of load drop were found to be the most significant factors for calibrating the damage parameters.

However the density function of environmental factors is difficult to determine.
Xie（2005）developed the failure model according to the property of order statistics, studied the common cause failure between components in a k-out-of-n systems, not involved the affiliate failure factors, and regard the lifetimes variables of components as independent.
Under these assumptions, by using the geometric process, the vector Markov process and the queuing theory, derived reliability indices for such a k/n(F) system with repairable repair-equipment and discussed its properties.
In this paper, decomposing correlation structure and their marginal distributions of component lifetimes, common cause failure and affiliate failure are considered synthetically which are two types of factors leaded to failure dependency in k/n(F) voting systems.
Reliability properties of consecutive k-out-of-n systems of arbitrarily dependent components, Reliability Engineering and System Safety. 94 (2009) 350－356

Aluminum quality will directly affect vehicle body's strength and assembly quality, and its quality mainly includes strength index and shape precision.
However, because of many affecting factors, suitable parameters for straightening process will directly affect straightening effect.
While straightening force can be determined by material strength properties curve and F δ− curve model.
Mechanical Strength, Vol. 27(2005), No.5, p.636 (In Chinese).

The main development of high performance components include diesel engine blocks, automotive powertrains, turbo housings, exhaust manifolds and many other parts in which the combination of strength, weight and heat conductivity properties are of great importance.
Of the present production, iron castings represent more than 75% of all castings worldwide mainly due to the package of physical and mechanical properties associated with competitive costs.
The main shape factors used for evaluating graphite morphologies on 25 mm bar samples are presented in Table 3 and Figure 5.
The main shape factors used for graphite morphology evaluation No.
Destefani, ASM Handbook, 'Properties and selection: Irons, steels, and high-performance alloys', 1990, Vol. 01, pp. 100-120, Ohio, USA, Materials Park

Due to many advanced properties of silicon, its use in MEMS industries is enormous.
The Rw value depends on the workpiece material and processing parameters affecting the machining process.
Table 1 shows the thermal properties for silicon wafer assigned in the finite element model.
Silicon wafer Properties.
Sl No Properties Specification 1 Density (kg/m3) 2329 2 Specific Heat (J/Kg K) 703 3 Thermal conductivity (W/m K) 148 4 Melting Point (K) 1687 The tool diameter is taken as 300 µm.

Effects of Graphite Shape on Thermal Fatigue Property of Thin Wall Graphitic Cast Irons Yung-Ning Pan1,a, Chen-Chi Fan1,b and Chih-Hung Chang1,c 1 Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan a panyn@ntu.edu.tw, bfaner@mail.hsivhs.tpc.edu.tw, cr98522712@ntu.edu.tw Keywords: Cast iron, Thermal fatigue, Thin-walled casting Abstract.
Furthermore, adding some 0.5%Mo to the irons significantly improves the thermal fatigue property, in some cases even by a factor of 2, implying that the role of Mo outweighs the influence of graphite structure in promoting thermal fatigue property.
In order to realize how the thermal fatigue property is affected by the graphite structure, 6-mm section plates were cast for evaluation due to the fact that a meaningful representation of compacted graphite structure can be obtained in this section.
Both properties in turn are related with alloy composition and microstructure [5-11].
Adding some 0.5%Mo to the irons significantly improves the thermal fatigue property, in some cases even by a factor of 2, implying that the role of Mo outweighs the influence of graphite structure in promoting thermal fatigue property.

Introduction The vibration of NC machine in the process will make relative position between workpiece and tool changed, affecting machining precision and efficiency of the workpiece.
The natural frequency and principal mode of vibration system is the natural property, which could be got through no damping free vibrations.
(1) From the modal cross dynamic flexibility of r order, the primary influence factors on dynamic response of machine system are natural frequencies and principal modes.
The main work includes: (1) Analyze and summarize the ant-vibration performance factors of NC machine, clear the inherent characteristics to be the key factor of forced vibration and improve the ability to resist the self-excited vibration under the situation of balancing the distribution of energy and damping distribution through reducing every order Modal flexibility and increasing every order damping ratio
[6] Tang Guoxing, Yin Feihong: Mechanical design and manufacturing, Vol. 12(2007), p.21.

By using Computational Fluid Dynamics software to simulate and optimize the various parameters which affect the efficiency of the rotor.
Compared with the horizontal axis wind turbines (HAWT), it has the property of simple structure, omnidirectional for wind, low cost and higher rotary torque.
The appropriate value of α must consider these two factors.
As the radius of the wind wheel is settled, the impact of R/r on the Cp is actually equal with rectifier diameter affect Cp.
Savonius: Mechanical Engineering Vol.53(5) (1931),p.333-340 [3] W.

Pellet thickness impacts the temperature gradient and the average reduction rate inside, and it is the major factor affecting pellet reduction process [1-5].
Therefore, the best vibration parameters are seeking to minimize the pellets’ damage and have a good dispersion.The vibration parameters have a significant effect on the performance of the vibrating feeder, so they are also key factors.
That is, (23) Fig .4 The relationship of the Optimal vibration angle and vibrating strength Considering the effects of pellets' properties and pellet thickness, we use a coefficientto calculate the practical velocity , so.
Vibration Mechanical Theory and Application.
Mechanical Industry Press(1982).