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We usually describe the mechanic behaviors of aluminum foam by the relations between stress and strain, which are affected deeply by the foam's initial densities [1~3], and induce much difficulty to the studies on the mechanic properties of aluminum foam, such as the energy absorption capacity and the corresponded optimum design.
In this paper, we try to find a general description of mechanic properties for aluminum foam with various initial densities through comprehensive experiments.
Moreover, many of the mechanical properties of aluminum foam, such as Young's modulus, plastic-collapse strength and so on, are dominated by the initial density.
And other factors, such as initial density, geometry dimension and cell diameter, seem to have little influence on it.
Ashby: Cellular Solids: Structure and Properties (Cambridge University Press, United States 1988)

Mechanical property is referred to compressive strengths of a brick unit.
Wide-variety properties of clay bricks are significant resistance to typical enviroment circumstance.
Their mechanical properties relate to durability and worsened cause, such as saline or acidic solvent [1] which are influenced by compressive strength [2].
The compressive strength of the fired brick unit depends on their local characteristics of bricks , assuming that other factors remain invariable.
Its basic physical properties obviously occur in physical analysis, such as density, void area, and water absorption.

And determination of these influencing factors and optimization of the process parameters combination are vital to the blanking with stability and duration.
The final production model was obtained by practice with orthogonal experiment of four factors times three levels.
How to decide the important factors and optimize the combination of the technical parameters become the problems to be solved eagerly.
Many factors affect the quality of the connector fracture surface,including blanking clearance,punch velocity,die blade roughness,punch radius,the so-caaled representative influencing factors.
Wang: Mechanical Science and Technology, Vol. 25 (2006) NO. 8, p. 891-895

The result showed that foam glass was affected by sintering temperature, as well as other factors such as foaming agent, oxygen supply agent and reaction time.
Using calcium carbonate as a foaming agent easily leads to a large number of open pores which exerts profound influence on the insulation properties of foamed glass, and excessively high sintering temperature increases the cost of production.
As the effect of foaming affected thermal insulation properties directly, the satisfactory foaming effect could be seen from Fig.1 (b) and (f).
As foam glass required properties of lightweight and porous, excessive density would demand higher load-bearing capacity in its application areas and limit its use.
Under the optimal conditions, foam glass produced by mixed glass had excellent properties with density reaching 0.2211 g/cm3.

Introduction In recent years ultrahigh-strength strip steels (UHSS) produced using thermomechanical rolling and direct quenching (TM-DQ) have become interesting materials for structural applications, because they can exhibit the good combinations of mechanical properties and weldability [1–3].
Mechanical Testing.
As it can be seen in Fig. 2 and Table 1, neither the surface roughness nor chemical composition change as a result of the presence or absence of red scale, which rules out these factors as possible causes of the differences in bendability or final microstructure.
Kömi, Microstructure, Properties and Design of Direct Quenched Structural Steels, Mater.
Yang, Tribological properties of magnetite precipitate from oxide scale in hot-rolled microalloyed steel, Wear. 302 (2013) 1286–1294

In addition, the mechanical properties of these samples are tested to evaluate their efficiency and effectiveness in the paving layers.
For estimation of the CBR values of soil, many models were created depending on many factors.
Roy [13] developed a prediction model to find CBR values by studying the soil properties.
As a result of non-plastic behaviour for most soils, there was no correlation between the mechanical properties and the CBR values.
· The regression models revealed the strong impact of these properties on CBR values.

The cutting efficiency is directly affected the construction of petrochemical and nuclear power.
For many difficult materials cutting technology, the selection of processing technology is most important among of factors of affect processing cylinder efficiency [1].
Ordinary cylinder hundreds of tons, hydrogenation reactor, up to 1000 tons more; Outer diameter of over 5m(Fig.1);Rough surface, severe calcification, These factors lead to large depth of cut when cutting, More cutting removal (removal of 25%), low cutting speed, feed rate is slow and so on.
For optimal results more in line with actual needs, in calculating the overall similarity, to give the characteristic properties of the local similarity weights, has the property .According to describe some of the characteristics of an instance attribute on the cylinder of the impact of heavy cutting process, to determine the weight values of attributes.
Proceedings of the Instit. of Mechanical Engineers.

The metallographical microstructure analysis of CuSn alloy under hot processing state (Φ20mm) and cold drawing state indicates that CuSn alloy does not have the second-phase precipitation during preparation and processing, and the performance of contact wires only is related with sizes of alloy crystal grains, processing hardening capacity and other factors.
The intermediate phase exists and lattice distortion becomes large, but they will not affect on conductivity and the Solid solution strengthening effect is good .
The Microstructure Corresponding Alloy Material Performance See table 1 for mechanical property and electrical performance of Cu-Sn contact wire under hot processing state at different time periods.
Under the optimized hot processing process conditions, Cu-Sn contact wires do not have precipitated phase, and the tin element is completely solid soluble in the copper substrate and forms steady microstructure, which decides steady performance of contact wires; moreover, Properties can meet the demand of customers.
0.02318- 0.02322 Qualified See table 2 for mechanical property and electrical performance of Cu-Sn contact wire under cold processing state at different time periods.

Geometrical parameters of welded joint affect the stress concentration coefficient seriously.
The stress concentration sensitivity of structural materials is primarily determined by their properties, theoretical stress concentration factor, the size of the objects under investigation, loading conditions [2].
There are a lot of factors influencing fatigue strength of welded structures, but stress concentration is the most important one.
There are many factors which has the effect on stress concentration phenomenon of welded cruciform joints, including weld tangent line angle θ, weld leg size and so on, as shown in Fig. 1.
Stress concentration factors and fatigue behaviour of welded thin walled CHS-SHS T-joints under in-plane bending[J].

The optimization design of dental implant after the mandible tumor resection and reconstruction Wenzheng Wu1, a, Ji Zhao1, b, Lei Zhang1, c, Xingtian Qu1, Di Zhao1, Yu Zhang1, Wanshan Wang2 1School of Mechanical Science and Engineering, Jilin University, Changchun, Jilin 130025, China 2School of Mechanical Engineering & Automation, Northeastern University, Shenyang, Liaoning 110819, China a wenzheng.wu@gmail.com; b jzhao@jlu.edu.cn; c zhanglei@jlu.edu.cn Keywords: Optimization design, FEA, Biomechanical analysis, Dental implant Abstract.
The lessened two implants will affect the deformation.
Wu et al., Dental Implants and Factors Influencing Their Failure: A Systematic Review.
Oettinger-Barak et al., Dental implants placed in previously failed sites: survival rate and factors affecting the outcome.
Fojt, The effect of porosity on barrier properties of DLC layers for dental implants.