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Thus for calculation of the structure and properties of hydrogen solid solutions in fcc metals, it is necessary to use the energies of elastic interaction in all 2.0 2.4 2.8 3.2 -8 -7 -6 -5 lnD,arb.units 1000/T,K -1 Fig. 4 Temperature dependence of diffusion coefficients D of hydrogen in Pd calculated with (triangles) and without (circles) the energies of H-H interaction [27]. coordination shells.
This means that the strain-induced C-C interaction cannot solely describe the thermodynamical properties of austenite.
The influence of interatomic interactions on the pre-exponential factor ∞τ is neglected.
Plastic deformation of fcc steels significantly affects temperature-dependent internal friction in the range of the FR relaxation.
In order to point out the role of these factors, the interaction of carbon atoms with a ½ [110](111) screw dislocation was calculated using a discrete crystal lattice model by means of the so-called 'hybrid' method [82, 83] and the temperature dependence of the internal friction was simulated for a typical Fe-27Ni-0.2C (at.%) austenite alloy, assuming a crystal both with and without dislocations.

The properties of product design and market competition environment determine the significance of design reuse.
Although the present CAD platforms have studied and developed corresponding standard parts library, they didn’t support the whole process in mechanical product design (e.g. demand analysis, concept design and detailed design).
The case we choose (Fig.2) shows that the material is ABS which possesses strong mechanical strength, good fluidity and easy molding.
(Shrinkage is the main factor of affecting the product size precision, the main parameter of confirming die size in the mold design) 2) Set mold coordinate system.
In: Chinese Mechanical Engineering. (2006) [7]R.S.

Introduction Friction welding machine is one kind of machine tool that utilizing the heat generated by relative rotational motion of weldment face to make the end portion reaches the thermoplastic state ,then quickly upsetting and complete welding.The static stiffness and optimization analysis has conducted in this paper for the special Pre-baked anode(square aluminum guide rod and flat steel beams welded)Friction welding machine in Aluminum electrolytic industry .Comparing with the general friction welder ,it can do weld of large size, the large friction torque between welding, high precision and so on.The Internal structure, layout, and location of ribs in spindle box of welding machine can affect the static and dynamic performance of the structure in box largely[1].Currently domestic get the static and dynamic properties of box structure through finite element method and software analysis.Some scholars have already done the analysis of headstock performance,but all these analysis are
The stress and strain parameters will be obtained through the static analysis of spindle box.At the time of the biggest force bear by cabinet( 5000kN upset force),the maximum deformation amount is less than 0.64mm.Because of the upsetting force is mainly applied to the front casement of spindle and the deformation is mainly concentrated in this,the maximum stress 248.22MPa is due to the phenomenon of stress concentration caused by exist of the cusp at the connection .Most of the stress in the front panel of the spindle box is around 27.58~110.32Hz and stress of oblique ribs is around 82.74~165.48Hz.The stress concentration is due to elastic theory caused by the geometrical configuration and load stress value,which will not affect the analysis of the structure[6].Because of the yield strength of 16Mn 350MPa,the safety factor of cabinet:, considering the worst working conditions ,then the static stiffness of the spindle box can meet their conditions.So choose the lightweight design.Figure
Mechanical Design and Manufacturing, Vol. 3(2011),p. 218.
Beijing: Mechanical Industry Press,1990, p. 10-50
Finite element analysis of four seats pure electric patrol car trailers [J].Mechanical Design, Vol. 12(2011) p. 54.

Despite the comparatively early discovery of the age hardening effect in this alloy system, relatively little work has been published on mechanical properties of the alloys, in general, and its fatigue characteristics [2-5].
The 3-mm-diameter, 100-mm-thick disk was prepared for TEM observation by mechanical polishing with a digitally enhanced precision specimen grinder and dimpling by a dimple grinder.
Although the specimens had shallow circumferential notches (20-mm notch radius and 0.25-mm notch depth), the fatigue strength reduction factor for this geometry was close to 1, meaning that they could be considered plain.
The fatigue specimens were electrolytically polished (approximately ≈ 25 mm from the surface layer) prior to mechanical testing to remove any preparation-affected surface layer.
Excepting the crack length less than 0.25 mm in which crack growth is likely to be affected by the stress concentration due to a small hole, a linear relation (a red line) held between lnl and N.

In order to maintain a high consistency of billet plating, the harvester discharge mechanism needs to accommodate the physical properties of sugarcane billet of Thai's variety, which vary by breed and harvesting method according to area.
More over, lack of labor for preparing the seed cane causes the delay planting which affect in less germination rate.
However, the metering units of imported billet planters were not compatible with working condition in Thailand to match the breeds and the physical properties of Thai sugarcane billet.
Factors, such as the linear conveying speed and the inclination of the conveyor belts were studied and modeled [2, 8].
To control the property of the sugarcane billets, the bulk density of the billets was checked.

The main factors are the fact that the work detailed in scientific publications often lacks important information and that some of the research work developed in this field is subject to confidentiality agreements that prevents its disclosure.
The tool components were subject to a temper treatment designed to improve the mechanical properties of the tools.
Furthermore they were also subjected to an ionic nitriding treatment with the purpose of improving the fatigue properties of the tool and to reduce the aluminium adherence to the tool features, namely the thread.
The most serious weld defects are the ones that affect the interior of the weld, such as the porosity that affects tests 6 and 7 (these internal defects have been highlighted in black).

A Study on the Development of Dedicated FEA Tool for Roll Forming of Asymmetrical U-channel Wan-gi Cha1, a, Hong-lae Kim1,b and Naksoo Kim2,c 1 Sogang University, 1, Sinsu-dong, Mapo-gu, Seoul, Korea. 2 Sogang university, Mechanical engineering, Sogang University, 1, Sinsu-dong, Mapo-gu, Seoul, 121-742, Korea.
Hong et al. [3] developed a roll forming program with kinematically steady-state condition integrated, which allowed for identification of factors affecting roll forming.
Material properties were found by tension test, as shown in Table 1.
Table 1 Material properties Young’s modulus[MPa] 210,000 Poisson’s ratio 0.3 Initial yield stress[MPa] 192.7 Flow stress[MPa] Figure 1 Section profile.

Heat Conduction Structural Topology Optimization Based on RAMP Jiachun Li1, a, Wente Tu1, a, Xudong Yang1, a, Jian Fu1, a, Yongtao Wang1, a 1 College of Mechanical Engineering, Guizhou University, China aljcgd211@163.com Keywords: heat conduction； topology optimization； Optimization Criteria；filtering technique Abstract.
Some numerical examples are presented to demonstrate the capability of the method presented herein. 2 Structural Topology Optimization Model Based RAMP 2.1 RAMP Interpolation Approach In this approach, the simple relationship of relative material density and effective property tensors are assumed as follows, （1） Wheredenotes property tensor of intermediate densities elements, the difference between property tensors of solid material and void material satisfying <20.
Introducing damping factor to ensure the computational stability and convergence, usually=0.5.
References [1] S.Xu, R.V.Grandhi, Structural Optimisation with Thermal and Mechanical Constraints, AIAA J.
Chinese Journal of Mechanical Engineering, 2003, 39(11):47～51(in Chinese)

Different factors like area/volume relationships, initial water content, granulometry (clay particle size) the formed body, and air-drying condition (temperature, relative humidity and flow rate) influence shrinkage.
These defects range from visible defects (such as cracks) to a reduction in physical properties in fired clay products in areas such as strength, elastic modulus, color and appearance (discoloration due to summing) [3].
However, this may give rise to high temperatures and gradients in the solid, which would induce thermal, hydrical and mechanical stresses.
The mechanical behavior of clay is generally described as elastic viscosity and plasticity depending on the moisture content.
For the other side, the drying rate can also be affected by the shape of the brick.

It was also found that concrete reinforced with anchor fiber has higher deformation properties than concrete reinforced with wave fiber.
Introduction Axial tensile strength is one of the most important properties of concrete, since it affects the behavior of reinforced concrete elements in bending, compression and shear.
Determination of the physical, physical-mechanical and construction-technical properties of concrete and mixtures with dispersed reinforcement was carried out in accordance with the current regulatory documents and generally accepted methods.
Conversion factors are proposed between the values determined in different experiments, depending on the specific composition of the composite.
It has also been found that concrete reinforced with anchor fiber has higher deformation properties than concrete reinforced with wave fiber.