Search results

The rheological properties of MR fluid were characterized using rotational and oscillatory shear rheometer.
Rheology Properties.
Viscosity is one of the significant values in rheology properties of MR fluid.
Carlson, “Properties and Applications of Commercial Magnetorheological Fluids,” J.
Carlson, “Critical factors for MR fluids in vehicle systems,” Int.

On the other hand, the uncertainty factors of the actual engineering problems should be considered when the grids are selected and calculation results are analyzed.
Their mechanical behavior can described with finite element method.
It should consider many factors including of material nature, calculated capacity and calculated accuracy etc.
The grid form and density affect computation time and outcome precision.
Therefore, the structure geometric properties, physical and mechanical properties and materials nature should be researched for the proper finite element model.

The aim of this paper is to study the degradation mode and the responsible factors of deterioration concrete pipe, used in the sewage’s city of Rennes (France).
Some authors report an increase of the volume with a factor 2 [13, 14].
However, the raft is almost not affected
- The concrete used has good physical, chemical and mechanical properties: a high density, compressive and tensile strength equal to those of high performance concretes, which can explain the weak deteriorations in depth (concrete highly compact with low porosity)
[6] Stewart WF., Disaggregation of Environmental Factors Affecting sewer pipe failures, Journal of Infrastructure Systems 5 (4) (1999) 150 - 158

These are mainly the biomechanical "motion-preserving" properties of the device.
Material properties.
After selecting the factors and levels, the design matrix can be established containing 33 experiments (Scenarios).
It can be seen that there are interactions between the three factors influencing stress.
The present study is different from the previous works [10,34] by investigating a prosthesis with flexible biomechanical properties.

Thus, adding hardware, increasing in task’s complexity, and length of duration in autonomy are factors that make the power supply in the mobile robot a critical component in the system.
However, batteries are usually unpredictable source of power, due to insufficient knowledge about the state of the battery, which could be affected by factors like the storage conditions, charging procedures, shelf life, and cycle life [1].
Our previous work describes the mechanical structure of the robotic mobile base to be employed for the project [2].
There are other properties in a battery that should be considered during the design stage of a power system.
Conf. on Mechanical Design, Manufacture and Automation Engineering MDMAE, Phuket, Thailand, 2014

Effective, controlled micro-alloying is very important in the production of high strength steel bar of consistent microstructure and hence mechanical properties and weldability.
Mechanical Properties of Steel Bars for the Building Industry in Hot-rolled State Grade yield strength /Rm(MPa) tensile strength /ReL(MPa) Elongation (MinValue) /A(%) HRB500 500 455 15 HRB400 400 540 16 HRB335 335 630 17 Composition Design of the High Strength Steel Bars.
The content of carbon, silicon and manganese ensures the mechanical properties of steel and end-point control at BOF process.
The simplicity of the design is a factor in the low capital investment costs.
Table.7 Main Mechanical Properties of HRB500 Steel Bars Nnominal diameter Yield strength /Rm Tensile strength /ReL Elongation /A/% 8 670-580 540-580 21-29 12 660-740 535-580 16-31 40 665-725 530-570 17-26 Summary The strength of the steel bars for the building industry can be increased by micro alloying with vanadium nitride.

A PCB is made up of three materials——copper, glass fiber and resin, which have very different material and optical properties.
Ross conducted a Taguchi multi-factorial experiment to identify the influential factors on drill life [39].
Du [51] experimentally discovered that the factors influencing the hole roughness might be different when the drill diameter range from 0.3 mm to 1.0 mm by drilling 6 layer PCBs.
Drilling of printed circuit boards: factors limiting the use of smaller drill sizes.
Critical factors in small-hole drilling.

The results of tensile properties show that the decrease rate of tensile properties of 2A12 aluminum alloy are accelerated by the coupling effect.
Especially in marine atmospheric environment, the structural components faces comprehensive corrosion effects of various environmental factors such as temperature, humidity and corrosion medium.
Five of them were applied to determine the tensile properties, one of them was used to identify the corrosion and fracture morphology.
Tensile Properties.
The coupling effect of corrosion and fatigue aggravates the decrease of tensile properties.

Table 1 presents their chemical composition and Table 2 shows their mechanical properties.
Monotonic mechanical properties of S355 steel Yield stress sy (MPa) Ultimate stress su (MPa) Young`s modulus E (GPa) Poisson‘s ratio n Elongation A5 (%) 357 535 210 0.30 21 Shape and dimensions of the test specimens are presented in Figure 1.
The theoretical stress concentration factor in the solid specimen under bending Kt = 1.38 was estimated according to the model presented in [2].
Whereas, in the heat-affected zone (HAZ) high fluctuations of hardness are observed.
The highest hardness and hardness differences were observed in the heat-affected zone. 2.

Introduction Recently, the ternary carbide Ti3SiC2 has been widely studied for its special layered structure and unusual combination of properties, such as low density, high melting point, easy machinability, excellent electrical and thermal conductivity, and high mechanical strength at high temperature [1-3].
The possible reaction path, mechanism and the factors affecting the phase composition were discussed.
In our experiment, two factors should be taken into consideration.
The presence of TiC impurities in the sintered sample can be attributed to two factors.