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In this paper, we numerically investigated the auxetic and other mechanical properties of the previously designed 3D metallic auxetic metamaterials under tension using experimentally validated FE models.
Combined with the previous study [42], the mechanical properties of the 3D metallic auxetic metamaterials both in tension and compression were compared. 2.
The side views of the altered bulk metamaterials with PSF=20% for simulations. 3.2 Comparisons of mechanical and auxetic performance in tension and compression In order to compare auxetic and other mechanical properties of the newly designed 3D metallic auxetic metamaterials in compression and tension, FE simulations were performed to investigate the properties of the designed 3D metamaterials in tension.
Mechanical properties of the altered FE model with PSF=20%: (a) curves of Poisson’s ratio as a function of nominal strain both in tension and compression; (b) nominal stress-strain curves in tension and compression.
The comparisons were made for the auxetic and other mechanical properties of the designed 3D metallic auxetic metamaterial.

The degradation of steel properties with increasing temperature is considered according to Eurocode 3: Part 1-2 provisions.
For temperatures > 700°C, the reduction factors kw,2 given for fillet welds can also be applied to butt welds.
All the test specimens were cut using water jet cutting, for does not create heat-affected zones or mechanical stresses.
The chemical composition and the initial micro-structure of the welded material are elements which will influence considerably the mechanical properties evolution from the welded joint.
Makelainen, Mechanical properties of structural steel at elevated temperatures and after cooling down, Second International Workshop “Structures Fire”, Christchurch, 2002, pp. 273-289 [8] I.

This paper presented the abrasive wear process of a particle pressing into the material and sliding on the surface simulated by finite element method to reveal wear characteristics and effect factors.
The contact stress and surface deformation of material were indicated and material wear resistance was studied, it was found that the stress and the deformation of subsurface not only depends on mechanical properties of material and original surface shape, but also on deformed surface profile due to sliding.
Factors affecting abrasive wear were complex, including abrasive particle hardness, size and shape, toughness and crushing strength, the hardness and the wear resistance of material, load and speed of motion, the wear resistance of material had a relationship with almost all the performance of the material[1-4].
In this paper, using ANSYS finite element software, it was simulated that a abrasive particle pressed into the surface of metal material and slid on surface, surface stress and deformation characteristics of material were researched, the abrasive wear resistance of material and effect factors were analyzed.
Conclusion (1) The stress and deformation of material surface in abrasive wear not only had the relations to material mechanical properties and the initial contours of particle and material surface, but also to the material surface contours deformed in contact region, there was geometric nonlinear instability associated with friction process

The results of mechanical properties tests are shown in Table 3.
The mechanical properties of BOF slag after carbonation increased slightly.
According to the physical properties test results, the specific gravity and water absorption were affected by carbonation.
The mechanical test shows that the mechanical properties were improved after carbonation.
Navarro Ezquerra: Change of mechanical properties during short–term natural weathering of MSWI bottom ash.

Besides the discharge energy, water content of W/O emulsion is another significant factor that affects the gas volume in the discharge gap.
Duo to the heat generated by continues discharge, the gas presented in the discharge gap will reaction with the molten material of the workpiece and as consequence affect the mechanical property of the machined surface [2]; for the other hand, the gas will affect the flow field of the dielectric and the movement of the debris in the gap, which is an important factors that affected the stability of the machining process [4].
The water content of the emulsion was a very important factor that can affect the physical properties of the emulsion.
The conductivity [8] and viscosity [9, 10] of the emulsion were significantly affected by its water content.
The water content of the emulsion was another factor that affected the relative gas volume (GRV) in the discharge gap.

Testing mechanical properties of composites often correlate a physical property with filler loading.
Mechanical properties of a composite were determined by several factors, they were the bond between resin matrix with filler particles, filler composition, particle size, volume, degree of matrix and filler polymerization, and filler distribution [1,2].
Composite filler volume also affects mechanical properties.
It affects that the filler and matrix didn’t mixed evenly and impacted on mechanical properties of the composite [1,2].
No tetragonal phase structure zirconia crystals in this prototype composite filler may affect the mechanical properties.

., Chang Chun 130011, China alijun.han@faw-vw.com, bzhujunjie@fawcar.com.cn Keywords: Al alloy, Cylinder block, Laser roughing, Plasma spraying, Mechanical properties, Microstructure, Quality check Abstract.
Via the analysis of microstructure, hardness, mechanical properties and machining dimension, it is suggested that the combination of laser roughing and plasma spraying can act as a feasible way to tailor the properties of surface layer and provide great potential to improve the practical applications of AACB in the field of automotive industry. 1.
In this work, several key factors are suggested for affecting the quality of the coated layer, including thickness, oxide proportion, oxide distribution, bonding force, porosity, hardness, interface morphology and etc.
Thus, in this work, three key factors are suggested, mechanical bonding, physical bonding, and metallurgical bonding.
Thermo-mechanical fatigue property and life prediction of vermicular graphite iron[J].

Effect of Mg on the microstructure and mechanical properties of the composites was investigated.
It is necessary for the optimum mechanical properties of the composites that the reinforcement fibers uniformly distribute in the aluminum alloy matrix by casting[1].
There are a lot of factors that affect fibers distribution in the metal matrix composites, such as the density, viscosity and surface tension of metal molten[2]; the density, size, and content of reinforced fibers[3]; the wettability of reinforced fibers with metal molten[4~7]; the stirring process and solidification process[8~10]etc.
CF wt% along the mold radius Influence of Mg addition on the mechanical properties of the composites.
(2) The suitable Mg addition is in favor of improving the mechanical properties of the carbon fiber reinforced Al alloy matrix composites.

The aim of this study is to clarify main factors affecting the non-linear stiffness of unsaturated soil at small strain range for a precise prediction of various ground deformations.
As the important factors for mechanical behaviour of unsaturated soils under small strain range, the effects of suction and mean net stress, which introduce the decrease of void ratio and degree of saturation, were discussed in the study.
The focus of the study is put only on the main factors affecting small strain stiffness, such as void ratio, mean net stress and degree of saturation together with the suction effect.
Other physical properties of it are as follows: =0.990,=0.597, =0.18mm, =1.55 and =1.05.
Their properties were measured by the Japanese standard.

The results show that the mechanical properties of MKG films can be enhanced through proper modification.
But its application as degradable film is hindered by its mechanical properties.
Various methods are used to improve its mechanical properties through chemical modification of KGM.
The influences of preparing conditions on mechanical properties of MKG.
The levels of test factors were listed in table 2.