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Properties of SBS modified bitumen membranes used in underground engineering and coastal buildings would also be affected by chemical corrosion.
Table 1 Physical properties of bitumen.
Physical Properties.
Mechanical performance of lap joins of flat roof waterpooofing membrans subjected to artificial weathering [J].
Experimental study of waterproof membranes on concrete deck: Interface adhesion under influences of critical factors [J].

It is found that the new model can accurately characterize the hyperelastic mechanical properties of the experimental specimens in different deformation states.
However, due to the complexity of rubber characteristics, nonlinear material and geometric properties bring great difficulties to the research, so finite element analysis (FEA) has become the main means of rubber mechanical analysis.
Filled rubber is very sensitive to the temperature and strain state, and the manufacturing process and composition of rubber also have a significant impact on the mechanical properties of rubber [1].
The main factor affecting the accuracy of this method is the edge effect of the free edge (the left and right sides that are not constrained in the plane tension) of the rubber sheet, and the strain state is not uniform in this region.
Liu, Determination of the mechanical properties of the different layers of blood vessels in vivo, Proceedings of the National Academy of Sciences, 92 (1995) 2169-2173

The article presents an overview of the composition and physical properties of masonry paints used in Chelyabinsk Region.
The influence of additives on the basic properties of masonry paints, viz. weather resistance, viscosity, hardness, cost, is considered.
The properties of aluminosilicate binders are substantially influenced by modification process.
Wu, Success factors of enhanced disaster resilience in urban community, Natural Hazards, 74(2) 2014 661-686
Wilson, et al., Factors affecting the water retaining characteristics of lime and cement mortars in the freshly-mixed state, Materials and Structures, 44(2) 2011 509-516

As the temperature increases, the strength of steel is drastically reduced, which has a great influence of temperature on mechanical properties of steel structure.
Accurate description of the mechanical properties of steel under elevated temperature is generally obtained by experimental methods.
Strength reduction factor, reduction factor for modulus of elasticity and reduction factor for proportional limit were used, in the paper, to describe the mechanical properties of steel at elevated temperatures given by the Eurocode3[8].
When 200°C affected range, and as 400°C < T≤500°C, it may be termed as the heavily affected range.
The important factor was the temperature of the column as the blast load was applied on it.

There are wear and vibration problems because of the emitter’s mechanical-scanning-structure.
Under the conditions of the given servo motor and couplings, shaft stiffness and bearing support properties, the dynamic model of the rotor is established as the beam radial bending vibration model, ignoring the influence on bending stiffness of the rotor centerline caused by accessories such as the photoelectric encoder and screws.
Stable external loads along the rotor axis lead to axial preload changes of bearings and affect bearing support stiffness.
Furthermore, these loads affect the performance of rotor dynamics.
Fig.3 Vibration mode of the given configuration Fig.4 (a) First critical speed for different distances between two group bearings; (b) Maximum amplitude for different distances between two group bearings Fig.5 Maximum amplitude for different dynamic unbalance Conclusions Many factors such as rotation speed, rotor material, unbalance, bearing and accessory configurations can affect the rotor system dynamic performance.

This surgery is done due to the several factors which are the bone is not normal position or has broken into several pieces.
For the tibia bone properties, it was search through reliable sources on the internet to get the value of its young’s modulus and Poisson’s ratio which is 7,300 MPa and 0.3 respectively [5].
Each material for sure have its own mechanical properties which is 200 GPa modulus of elasticity for stainless steel and 110 GPa for titanium alloy but offer a same value of Poisson’s ratio, 0.3.
High value of stress will affect the bone healing period since it will pressurized the pinhole area.
In addition, the high value of displacement will affecting the structure of the model where it will increase the potential to implant loosening.

Numerical Investigation on Effect of Rounded Cutting Edge Radius in Milling of Ultra-high-strength Steel 30Cr3SiNiMoVA Changying Wang a, Jiajin Tian b, Qinglong An c, Ming Chen d School of mechanical engineering, Shanghai Jiao Tong University, Shanghai, China Email: achangying1121@sjtu.edu.cn, btjjjy@sjtu.edu.cn, cqlan@sjtu.edu.cn, dmchen@sjtu.edu.cn Keywords: rounded cutting edge, precision milling, ultra-high-strength steel, FEM Abstract: Ultra-high-strength steel 30Cr3SiNiMoVA (30Cr3) which has excellent mechanical properties is usually used to manufacture the key parts in aviation industry.
Introduction 30Cr3SiNiMoVA (30Cr3) as a typical ultra-high-strength steel has obtained an increasing demand in aerospace and aviation industries due to its superior properties, such as high strength, strong corrosion resistance, high hardness, etc.
The relevant researches have shown that rounded cutting edge has been a primary factor influencing precision machining process.
H13 (52HRC) mold steel with the size of 2mm×2mm is chosen as the workpiece in the simulation since it has similar chemical composition and mechanical properties with 30Cr3.
A single factor methodology is employed in the FE simulation with rounded cutting edge radius as the variable.

Those factors cause fatigue fractures.
Each material was compared to observe that which of them, 2024-T4 and 7075-T6, improved fatigue properties by shot peening.
The specimen’s chemical compositions are shown in Table 1, and the mechanical properties of the alloy determined by tensile test are shown in Table 2.
Therefore, the residual compressive stress size affects the increase in the fatigue life.
Pilkey, “Peterson’s Stress Concentration Factors”, Wiley, 2008 [6] Jong Cheon Kim and Seong Kyun Cheong, 2012, “Effect of Oxide Film Formation on the Fatigue Behavior of Aluminum Alloy”, Trans, Korean Soc.

Wear is also a complicated surface damaging process, which is affected by various material properties as well as external conditions [2].
Mechanical and wear properties of severely deformed Al–12Si alloy by ECAP have been investigated [6].
The effect of ECAP on anisotropic mechanical properties of Al/Al3Zr alloy has also been investigated [8].
The material intrinsic surface properties such as hardness, strength, ductility, work hardening etc. are very important factors for wear resistance.
Other factors like surface finish, lubrication, load, speed, corrosion, temperature and properties of the opposing surface etc. are equally important.

The extrusion width depends on the properties of the plastic material; it is about 1.2 ÷ 1.5 times of the nozzle diameter [6].
In the demand of optimization of the forming parameters, a quadratic experimental design with the polynomial regression equation is selected with the following general form: y=bo+i=1kbixi+i=1kbiixi2ifactor Central Composite Face-Centered Design is selected because it has some good properties such as: ability to describe well the properties of research objects in the design space and having contains full factorial design of 3 factors inside.
The count of tests to be conducted is 17 with 3 factors are considered.
An experimental matrix including three coded factors is illustrated in Table 3.
Adhiyamaan, “Investigation on the effect of fused deposition modeling process parameters on flexural and surface roughness properties of PC-ABS blend”, International Journal on Recent Technologies in Mechanical and Electrical Engineering 2(8), 2015