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Thus, high temperature stiffness and low temperature flexibility are both important properties in bituminous mixtures to avert rutting and cracking.
Required number of samples for the experiment depends on the number of factors considered in the study.
In this study, even though there are four influencing factors that may have an effect on the mechanical properties of asphaltic concrete mixtures, two factors are fixed and there are only two factors that vary.
The fixed factors are bitumen content and rate of loading whereas the varying factors are bitumen types and temperature.
Mohamed: A study on the physical and mechanical properties of asphaltic concrete incorporating crumb rubber produced through dry process (2007)

The described long-term measurement is based on a resistance method and the text explains its principle, mentions factors influencing the accuracy of measurement and shows installation and development of probes, which were designed by author for this kind of measurements.
Wood moisture also affects mechanical properties which are deteriorating with increasing humidity.
Since performing calculations can be difficult in complicated details – because it is sometimes nearly impossible to take into account all the factors affecting the detail – long-term measurements in real structures seem to be the best way to control the right function of designed details.
Zelinka, Moisture Relations and Physical Properties of Wood, Forest Products Laboratory, in: Wood handbook—Wood as an engineering material, Madison, WI: U.S.
TenWolde, Physical Properties and Moisture Relations of Wood, Forest Products Laboratory, in: Wood handbook—Wood as an engineering material, Madison, WI: U.S.

It has also some advantages such as short product cycles, high quality part surfaces, good mechanical properties, low cost and light weight, so it is becoming increasingly more significant in today’s plastic production industries.
In experimental design, there are many variable factors that affect the functional characteristics of the product.
Design parameter values that minimize the effect of noise factors on the product’s quality are determined.
A high value of S/N implies that the signal is much higher than the random effects of the noise factors.
Melt temperature (factor A) followed by Packing Pressure (factor C) were the most dominating factors.

It is shown that the bonding length affect the flexural properties of composite tubes.
The flexural properties of bonding composite tubes increased with the increasing length of reinforced pieces L2.
However, few researchers investigate the composite tube of adhesive bonding and mechanical properties after the connection.
Fig.2 shows the typical compression properties load-displacement curves of specimens.
As the increase of deflection, deformation properties changed from elastic deformation to plastic deformation.

Preparation Technology and Surface Finishing Characteristics Research of New Magnetic Abrasive Tools Xiuhong Lia, Wenhui Lib and Shengqiang Yangc College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan 030024, P.
The magnetic medium phase directly affect the magnetization of abrasives, The composition of abrasive phase and particle size influence grinding ability of magnetic abrasives, The magnetic medium pahase combined with abrasive phase is solidifies to spheric abrasives of a certain size by binder.
Therefore, the total magnetic force acting on the abrasives F is as follows: F=FX+Fy (3) From the equation (3), it can be seen that the magnetic field strength is the main factor affecting the finishing effects.
Equation (1) and (2) show that the magnetic field strength, abrasive composition, size and ratio would directly affect the magnetic field force, so the magnetic field force and abrasive physical properties (composition, size and ratio) are the main factors affecting the machining effect of rotating magnetic field magnetic abrasive finishing.
Experimental research on the abrasive physical properties is carried out for inner hole surface using the equipment shown by Fig.3.

And the dynamic characteristic in the assembly process is the main factor [1].
Because of these problems, the task of the high-performance mechanical systems cannot be implemented as desired.
The critical factor affecting the merits of the assembly is the assembly process.
These documents are unstructured and have large capacity, which are unable to be fully presented with the ordinary properties.
To solve the problem that Microsoft Word or Pro/E and other popular formats have different versions, [INTERNAL_VERSION_ID] property is set (Fig.4 (b)).

Stress distribution is affected by matensite transformation.
Introduction Residual stress is an important consideration factor in the component integrity and life assessment of welded structures.
Temperature-dependent thermo-physical and mechanical properties are shown in Fig. 1.
Table 1 Chemical composition of ferrite heat resistant steel(wt.%) C Si Mn Cr Mo W V Nb N Co 0.05 0.21 0.44 9.81 0.43 1.8 0.22 0.07 0.02 1.4 Fig.1 Thermal properties and mechanical properties against temperature Solid state phase transformation is responsible volume changes.
Friedman: Thermo-mechanical analysis of the welding process using the finite element method, J.

Martensite and carbon content in the microstructure greatly affects the mechanical properties of AHSS, underlining more importance on microstructural discontinuities and their multiphase characteristics.
The introduction of AHSS implies that one needs to know their mechanical properties and consider their multiphase microstructural behaviour in the predictive modelling.
Each phase has different material properties and/or material orientations and can be inhomogeneous at some smaller length scales.
Instead of constitutive relations at the macroscale level, the microstructural material properties and morphologies are assumed known a priori (Fig. 1).
The most reasonable estimation of the averaged properties are obtained with periodic BCs [6].

Study on Simulation Processing and Engineering Experiment of Spinneret Hole Bottom based on Material and Mechanics Properties with Different Transition Angles Qiancheng Zhao, Na Shi, Chongchang Yang * Engineering Research Center of Advanced Textile Machinery, Ministry of Education, Shanghai, 201620, P.
China College of Mechanical Engineering, Donghua University, Shanghai, 200051, P.
Its high precision is the key factor to both the quality of fiber and a good spinning process. [1]The shape of the transition angle of spinneret hole bottom has an important influence on the spinning extrusion grew phenomenon.
Consider a combination of factors, this speed is the optimal parameters in the automatic processing. Ⅳ.
(in Chinese) [3] Chen Jian, Shen Xing dong.”Study on Machinability of stainless steel”.Electrical and mechanical product development and innovation. 2004(7).

This work provides the basis for further research on the influence factor of sniper rifle firing accuracy.
The material model of bullet is bilinear model, related mechanical performance parameters are shown in Table 1.
Table 1 Parameter of mechanical properties material density （kg/m3） Young’s modulus Poisson’s ratio σs（Mpa） σb（Mpa） steel 7.85×103 206000 0.29 810 - copper 8.73×103 108000 0.35 160 620 lead 11.34×103 17000 0.42 11.3 16.5 Contact and boundary conditions.
The bend deformation of tube due to gravity is bound to affect the bullet motion in the tube.
These results could be used as the reference for simulation study of sniper rifle, which is helpful to raise awareness of firing accuracy influencing factors.