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Z.X Lu et al.[4] studied the mechanical properties of conventional polyurethane foam plastics and composites reinforced by glass fiber bundles.
The mechanical properties were analyzed by Rouisona et al. [6], who made use of kenaf fiber and unsaturated polyester resin to produce the composites by using the resin transfer molding method.
The study on the preparation and mechanical properties of the ramie fiber reinforced polyurethane foam and thermoplastic composites were investigated by J.Y.
As we know from contents, the fiber length and fiber surface modified method were more important factors that affected the impact strength.
The fiber length and fiber coated method were the most significant factors, and molding pressure and fiber content were the least significant factors to the impact strength of the jute-polyurethane composites.

Sulfate attack is one of the important factors affecting the durability of concrete.
Introduction Sulfate attack is one of the important factors affecting the durability of concrete and has been studied by many researchers, since Tuthill [1] noticed that the deteriorations of concrete structures caused by sodium sulfate attack in the 1930s.
Hartell et al [6] quantified the degree of sodium sulfate attack through the degradation of mechanical properties and found the surface disintegration caused by salt crystallization.
The length-diameter ratio was 45 and the tensile strength is greater than 825MPa.The mechanical and physical properties of corrugated steel fiber are presented in Table 3.
Its physical properties and chemical composition are listed in Table 4.

These are in turn influenced by the mechanical properties of cells.
These methods have been used also to understand how the mechanical properties of cells change in diseased tissues.
Earlier studies focused on investigating the global mechanical properties of chondrocytes.
Force and displacement data, over time, can then be fitted to acquire cell mechanical properties.
Grodzinsky, Nanomechanical properties of individual chondrocytes and their developing growth factor-stimulated pericellular matrix, J Biomech., 40, 5, (2006), 1011-23

However, the effect of coatings on mechanical and fatigue properties is not sufficiently known because it is a combination of many factors as high-temperature exposure time, thermal cycle and coating deposition technique.
This paper is focused on the study of microstructure and properties of aluminide protective layers deposited on cast polycrystalline nickel base superalloy Inconel713LC.
Protective properties of diffusion coatings depend on their thickness and composition.
Thus, to attain high coating resistance to oxidation, hot corrosion and erosion without the reduction of mechanical and fatigue properties, an optimum coating thickness has to be chosen.
Interactions between individual layers of the system can adversely affect both the protective coating and superalloy properties.

Superheater tube failures caused by mechanical factors, namely due to cyclic tensile stress as result in vibration by gas flow coupled with an increase in the local area due to the welding heat, therefore, increases the rate of crack propagation.
Mechanical analysis, including visual and metallurgical examination and also mechanical property measurement were performed.
Heat absorption of each part is calculated based on operation data and thermodynamic properties of water or steam at inlet and outlet of each equipment [8.9].
Fig. 4 Microstruture of superheater tubes Mechanical Property Measurement Table 1 shows hardness test result for several tubes.
These movement might not able to be detained by the tube so, in the weakest area of the tube which is Heat Affecting Zone emerged crack potential as result of cyclic tensile stress.

Current experiences shows that the structure design should be optimize due to relatively new fine-grained cement-based Hi-Tech material with excellent mechanical and durability properties.
A lot of works are focused on a basic mechanical properties and durability tests.
Mixture design (dosage and type of cement, fineness, water/binder ratio and granularity), bulk density, air conditions, shape and dimmensions are the basic factors that affect the volumetric changes.
The shape and the dimension of the specimen are important factors for subsequent evaluation of the overall shrinkage with respect to the real application of the matrix.
Previous project of UHPC were focused on a basic material properties.

The quality of castings is also affected by other factors such as a die casting machine, a type of cast alloy and its metallurgical processing, the quality itself of the produced mold, the set technological parameters, and last but not least, attendance of die casting machine.
A selection of a correct speed of a die cavity filling depends on such factors as an alloy type, a casting complexity, a ratio of a slot area to a casting area, etc.[1, 4] Casting thermal factors - the basic casting thermal factors include: cast alloy temperature, pressure casting chamber temperature and mold temperature.[1] Temperature of a cast alloy - thecasting of very warm alloys into the cold a mold cavity causes serious strain on the surface layers of mold material.
Monitored was influence of three factors upon the stage of inhomogeneity of casting made of silumin the chemical composition of which is presented in table 1.
Out of the three mentioned intervals the castings cast at speed of 1 m.s-1 achieve the highest values Rm.Concerning the casting temperature the top quality castings were obtained at the alloy temperature of 660°C with left bars and with right bars at the alloy temperature of 640°C. [4] Conclusion Plunger pressing speed during the casting cycle and its dependent speed of a mold cavity filling with the liquid metal is an essential technological factor of die casting which affects mechanical properties of the die castings and determines the mode of a mold cavity filling affecting the casting homogeneity.
References [1] Gaspar, S. - Pasko, J.: Influence of technological factors of die casting on mechanical properties of castings from silumin, Lecture Notes in Electrical Engineering, Vol. 240, 2013, p. 713-722 [2] Gaspar, S. - Pasko, J.: Metal flow velocity in an intake port in the process of die casting, Advanced Materials research, Vol. 705, 2013, p. 177-180 [3] Pasko, J. - Gaspar, S.: Homogeneity and the height of the metal rest inside a filling chamber of die casting machine, Advanced Materials Research, Vol. 746, 2013, p. 457-461 [4] Malik, J. - Gaspar, J - Pasko, J.: Effect of die casting technological factors on the mechanical properties of castings, Manufacturing Engineering, Vol. 8, 2009, p. 32-37 [5] Ruzbarsky, J. - Zarnovsky, J.: Optimatization of parameters in the compression moulding process of thermoset products,Advanced Materials Research, Vol. 801, 2013, p. 61-66 [6] Novak - Marcincin, J.

Mechanical properties and impact toughness of butt joint, the welding crack susceptibility of weld and heat-affected-zone (HAZ) for tee joint, Control Thermal Severity (CTS) welded joint, and 60°Y-groove butt joint were inspected after gas shielded arc welding tests.
The mechanical properties of the electrode wire are, YS 435MPa, UTS 550MPa and TE 29%.
Mechanical properties of welded joint.
Results and discussion Mechanical properties of the welds.
Fig. 1 Mechanical properties and hardness profile of welded joint Impact toughness of (a) RT; (b) -20℃; and (c) Hardness profile.

The inner hole surface roughness is the key factor which affects its high-speed stability and moving accuracy.
Preface Due to its unique internal structure, engineering ceramic material has such properties as high hardness and strength, high temperature resistant, wear resistance, corrosion resistance, low density and high brittle.
The connecting rod of grinding wheel will occur quiver bending phenomenon affecting grinding accuracy if the ratio of grinding radian is too large or the contact area increase.
In the orthogonal test, the size of the range reflects the corresponding factors which affect the coefficient of internal hole surface roughness.
A large range of factors explained that the coefficient is large, a small range of factors explained that the coefficient is small.

Moreover, it can’t relate the basic mechanical properties of titanium alloys with their protection capacity directly.
In order to evaluate the impact protection capacity, researchers tend to use mechanical test to investigate the dynamic properties of titanium alloys in laboratory.
Besides, they have also built the relationship between those dynamic mechanical properties and their ballistic performance of titanium alloys.
Dynamic mechanical properties in relation to adiabatic shear band formation in titanium alloy-Ti17 Li.
Effects of microstructural factors on quasi-static and dynamic deformation behaviors of Ti-6Al-4V alloys with widmanstätten structures.