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Chloride attack has been identified as one of the most important factors initiating the corrosion of reinforcing bars.
Material properties of the concrete structures are widely recognized that it is of intrinsic randomness, and it is an urgent task to develop a stochastic analysis method for chloride diffusion.
Chloride attack has been identified as one of the most important fators affecting the corrosion of reinforcing bars.
The sources of randomness are related to material properties, parameters of mechanical model, and environmental conditions[8].
According to the figures, the COV of diffusion coefficient affects significantly the standard deviation of chloride concentration.

The Composites are difficult machining materials which widely used in aerospace industry due to their excellent mechanical properties.
The thrust force and torque affect the tool life and delamination mostly.
Introduction Composite materials such as fibre-reinforced plastics(CFRP) are extensively used in aerospace, automotive and civil applications due to their excellent mechanical properties.
These properties made them especially attractive for aerospace and civil applications.
Table 1 Assignment of the levels to the factors Level 1 2 3 4 5 Revolution (rpm) 10000 12000 14000 16000 18000 Feed speed (mm/min) 50 80 120 Fig. 4 Schematic diagram of the experiment Results and Discussion The value of the thrust force and the torque from the recorded data were show in Table 2.

For this reason, it is important to estimate and predict the mechanical properties decay, in terms of toughness and crack propagation, when steel is in contact with hydrogen.
Introduction When hydrogen is present in the working environment of structures made of carbon and low alloy steels, these materials show mechanical properties degradation.
Aim of the present paper is to develop a FE model able to estimate the fracture toughness of two steels in presence of hydrogen, starting from their mechanical properties in hydrogen free conditions.
Table 1: Mechanical properties of the analysed steels Material σy [MPa] σUTS [MPa] E [MPa] SA-182 F22 468±3 592±2 206500±1500 API 5L X65 511±7 609±6 206200±6050 The second step consists of a diffusion analysis.
Comparing the results with the experimental values obtained by hydrogen charged material, the model seems to appreciate the embrittlement effect on the mechanical properties drop of the two low-alloyed steels.

Under the influence of multiple factors, it is difficult to find the law of concrete properties changed by mixed material properties.
Formulation factors: Based on the reference paper [3-4], while according to the test of cross-shell concrete, choose water-cement ratio, cementitious materials and sand ratio as study factors, respectively three test bit-level (horizontal), as shown in Table 1.
Mix tests and results According to the factors in the order listed, bit-level condemnation, cross to see the principle of the test conditions, arrange the factors and levels in corresponding position of the orthogonal table, and then formed with the test schedule, Table 5.
Conclusions When the type and dosage of admixture were selected, water-cement ratio was the most important factor to affect the strength of concrete, Cementitious materials and sand ratio is an important factor to affect its workability, fly ash and silica fume can significantly improve the workability of concrete, fly ash increases the slump of concrete, and silica fume added reducing the slump of concrete greatly.
[6] GB/T50081-2002: Standard for test method of mechanical properties on ordinary concrete (Building Industry Press, China 1999)

Taking the surface properties affecting the functional performance of the component/product into consideration, this investigation characterizes the surface integrity as microstructure, microhardness, residual stress and fatigue.
Affecting Factors to the Surface Quality.
Cheng classified the key elements that particularly affect the Table 1 The affecting factors to the surface quality Source Linear factors Nonlinear factors Machine tool Modal parameters of wheel spindle, lead screw and nut system Modal parameters of worktable and slideway system Straightness of the slideway Wheel spindle rotational run-out and axial run-out Abrasive tool Wheel diameter Grain size Grain rake angle Position of grain distributions Height distribution of grains Built – up – edge Tool wear Operation conditions Depth of cut Wheel/work speed Feed rate Coolant Environmental vibrations Material property Initial shear stress at shop temperature Initial shear angle The variation of shear stress The variation of shear angle Gain hardness machining accuracy as: machine tools, operation factors, selection of abrasive tools and workpiece materials [6].
Considered the difficulty in quantitative characterization of each factors and their effects, Table 1 lists major factors associated with each of these four primary elements.
Those factors are chosen as the inputs for the modelling approach.

The significant influence and the optimum condition achieved by analysis four factors and regression analysis.
In this report, the factors that affect finishing performance including DMDHEU, catalyst, baking temperature and time were investigated.
Results and Discussion The changes on fabric physical properties after treatment All samples were treated according to Central Composite Design for resin treatment and the change rates of fabric physical properties were recorded in table 1.
Table 2 The significance of each factors on change rate (%) of fabric properties after treatments Factors Significance (p) %∆W %∆Swarp %∆Sweft %∆WRA A 0.397 0.005 0.607 0.009 B 0.666 0.992 0.077 0.148 C 0.519 0.000 0.000 0.000 D 0.532 0.013 0.069 0.006 When p＜0.05, the effect is significantly and the p smaller, more significant.
Optimization of treatment Conditions According to all factors designed in table 1 and considered all data of physical properties change rate in table 2, their low, high and expectation values were set as shown in table 3.

Meanwhile, this article discussed the acting force types of the particles inside briquette and influencing factors of lignite molding from the point of agglomerating mechanism.
The interaction between the particles within the coal type and size Mechanical meshing force.
According to the chemical mechanical theory that mechanical and optical, electrical, magnetic, thermal, radiation and other forms of energy, also can cause physical changes in the physical and chemical properties of chemical reactions.
This mechanical force induced by the chemical reaction of substances, known as the mechanical chemical.
Visible, solid bridge bond strength is affecting the type block one of the main factors.

Composite foundation settlement is affected by many factors, and settlement data is a non-linear changing process with complexity, suddenness and progressive nature and so on.
Although the method of analyzing the influential factors to model in theory is much more clear and specific, the complexity of these influential factors itself will affect the practical application results of the theoretical modeling .Modeling methods ,based on monitoring data , Modeling method based on the monitoring data and the existence of which contains features extraction and into the implementation difficulties.
First of all, actual monitoring data of foundation settlement will be affected by many external factors.Remove all the interference effectively by EMD decomposition and get useful information to improve the effect of predicting the model itself.
Secondly, there is a certain time evolution between foundation settlement and external environmental factors .
Among many factors of foundation settlement,there are large differences between different characteristic time scales.

The interpretation of factors (σ-1) 0 and Kc is similar to the coefficients of the Hall-Petch equation, but taking into account that the indicated characteristics are used for cyclic loading [25].
Effects of temperature of isothermal treatment with drawing on the mechanical properties of hot-rolled steel 40X // Modern science-intensive technologies. 2015.
The Factor of Structure and Mechanical Properties in the Production of Critical Fixing Hardware 38XA // Tribology in Industry. 2016. - Vol. 38. - No. 3 - pp. 385-391
Method of formation of structural and mechanical properties of rolled steel for core products upsetting // Ferrous metals. 2018.
The structure and properties of metallic materials. – Moscow: Metallurgy. 1971.

Preliminary Study on the Comparable Flow Pattern Between Stented and Non-Stented Aneurysm at Hypertension Condition Ishkrizat Taib1, a, Kahar Osman2, b, Hendra Hermawan3, Mohammed Rafiq Abd Kadir4 1Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia 2Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, UTM 81310 Skudai, Johor, Malaysia 3Faculty of Biomedical and Health Sciences, Universiti Teknologi Malaysia, UTM 81310 Skudai, Johor, Malaysia aiszat@uthm.edu.my, bkahar@fkm.utm.my Keywords: Bare metallic stent, abdominal aortic aneurysm, vortex formation, hemodynamic factors Abstract.
Parameter Assumptions and Blood Properties.
The failure of the bulge vessel has been influenced by the hemodynamic factors.
The translating and grows of the vortex at the non-stented aneurysm was alarming whereby the more flow activity at that region, will be affected the failure of the aneurismal region.
Modeling pulsatile flow in aortic aneurysms: Effect of non-Newtonian properties of blood, IOS Press, Biorheology 43 (2006) 661–679.