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Based on this assumption, the Truss Model [8], the Lattice Model [9] and the continuous finite element model [6,10] et al. were proposed to analyze the properties of concrete material.
This model is able to well describe the mechanical properties of brittle materials such as ceramic, glass, rock, et al.
It is frequently thought that material’s strength and density are two of the significant influencing factors on the resistance to impact.
To save the computer’s memory and calculating time, only the zone which significantly affects the perforation process was mesoscale modeled.
Lopatin:High strain rate properties and constitutive modelling of glass.1995),p.

The influences of some factors on the forming length decisively have been analyzed and the sensitivity of these factors has been considered.
Table 1 shows the mechanical properties of the three kinds of materials used in this simulation.
The factors are shown on the table.3.
There are three factors with 3 levels considered in this paper.
The factors are same with simulation 3.

The parameters affecting EDM significantly are peak current, peak voltage, Ton, Toff, electrode material, dielectric etc.
The chemical composition of Ti-6Al-4V(wt%) include: Ti,89.64; Al,6.08; V,4.02; Fe,0.22; O2,0.18; others,0.04 and mechanical properties are shown in Table 1.
Mechanical properties of Ti-6Al-4V Hardness (HRC) 36 Melting temperature (°C) 1649 ± 15 Density (g/cm3) 4.42 Elastic modulus (GPa) 114 Tensile strength (MPa) 897 Thermal conductivity (W/m k) 7.2 Electrical resistivity (μΩ·cm) 178 Table 2.
- From the grey relational analysis, it is reveal that peak current is most prominent factor affecting EDM of Ti-6Al-4V.
- ANOVA results of grey grade reveals that peak current is prominent factor affecting EDM.

Investigation into root causes of key gear failure modes will be essential to identify critical operational conditions and important factors affecting the failures.
Their study concluded that the key factors over the number of load cycles necessary for micropitting occurrence.
Details of gear parameters, material properties, lubricant properties are given in Al-Tubi and Long (2012) [14].
Such a smooth surface is one of the most important factors in micropitting resistance [13].
J, Assessment of the factors influencing micropitting in rolling/sliding contacts, Wear, 258 (10) (2005) 1510–1524

The main aim of the present research is to improve the structure of the briquette and to observe basic fuel properties of durian peels in the presence of calcium hydroxide.
Therefore, the main focus of this research is to compare the properties of durian peels briquette in the presence of the binder calcium hydroxide.
Hameed, Textural porosity, surface chemistry and adsorptive properties of durian shell derived activated carbon prepared by microwave assisted sodium hydroxide activation, Chem.
Morey, Factors affecting strength and durability of densified biomass products, Biomass Bioenergy. 33 (2009) 337-359
Hurst, Microwave and slow pyrolysis biochar-Comparison of physical and functional properties, J.

So the parts obtained by it are incontaminated， homogeneous，fine microstructure and better mechanical properties, and it has potential applications to the high melting or active metals, etc [3-6].
Experiments and Results Effect Factors of Temperature Field and Electromagnetic Force.
All the effect factors of the electromagnetic force are also the effect factors of the temperature field.
In addition, there are other factors affect the temperature field in the EMCS process, for example the cooling ability of the coolant and the drawing speed of shaped sample.
The effect factors of the electromagnetic force and the temperature field were summarized.

In this paper, a finite element model predicting machining deformation was developed considering the above mentioned multi-factors coupling effects.
Computer Simulation Material Properties of the Part.
The workpiece material is high-strength wrought aluminum alloy 7050-T7451 and its mechanical and thermal properties are given in Table1.
First the CAD model is established in software package ABAQUS, then input material's mechanical and physical properties, original residual stress and boundary conditions.
a) Machining work b) Tre multi-frame components c) Deformation measurement Fig.10 Measuring deformation of true frame component Conclusions 1）A machining deformation prediction model by FEM was developed considering multi-factors coupling effects including original residual stresses, cutting loads and clamping force.

Some data about the 17-4 PH stainless steel are available; they are however mainly focused on the influence of heat-treatments and related microstructural characteristics on the room-temperature fatigue properties [1-8].
The mechanical properties at room temperature determined for the as-received material by AUBERT & DUVAL are given in Table 1.
Table 1: Mechanical properties of 15-5PH Stainless Steel in AR condition at room temperature FCG tests were carried out on a commercial closed-loop servohydraulic test machine at room temperatures and at 300°C in laboratory air.
As observed at ambient temperature, ageing does not affect the FCGRs at 300°C over the entire extent of the stable propagation domain.
· As in room temperature, ageing does not affect the FCGRs in the stable propagation domain at high temperature.

Therefore, it is important to figure out how the factors affecting the degradation of wool fabrics.
Especially, when disulphide bonds, which are contained in cystine and form a specific cross-linked structure for wool and make it more resistant to extraneous interference than silk fiber, were broken, the mechanical, thermal and other properties of the wool changed greatly [6].
[3] Aksakal, B., et al., The effect of temperature and water on the mechanical properties of wool fibres investigated with different experimental methods.
[12] Bertini, F., et al., Wool keratin-polypropylene composites: Properties and thermal degradation.
[15] Niu, M., et al., Molecular structure and properties of wool fiber surface-grafted with nano-antibacterial materials.

The loss may be due to the interplay of various factors.
And the influence of single factor is easily overlapped by other factors.
Recently, many scholars conducted a series of experiments to deduce original correlations between electrical breakdown strength and mechanical or tribological properties [12,13,14].
Das, Effect of powder, chemistry and morphology on the dielectric properties of liquid-phase-sinted alumina.
Jiang, Microstructure and mechanical properties of porous alumina ceramic prepared by a combination of 3–D printing and sintering, Ceram.