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The most important properties of Ti and Ti-alloys, which make these materials very attractive in various applications, are the high strength-to-weight ratio, their corrosion resistance at room and elevated temperatures and mechanical properties of these materials that do not deteriorate at even higher temperature.
Difficulties expected while machining Ti555.3 are higher as compared with the Ti-6Al-4V alloy because of the following factors: · the mechanical properties, especially the hardness and the tensile stress at high temperatures (400 ◦C); · the variation of structure with a variable quantity of the alpha phase; and · the morphology of the transformed beta phase [5].
Surface integrity, on the other hand, describes not only the topological aspects of surfaces and their physical and chemical properties but also their mechanical and metallurgical properties.
Surface integrity is an important consideration in manufacturing operations because it influences the mechanical properties of the product, such as its fatigue strength, resistance to corrosion, and service life [1].
According to Suhail et al [8], who performed their experiment for medium carbon steel, it is found that cutting speed and feed rate are the significant cutting parameters for affecting surface roughness.

Introduction Combination of composites materials, carbon fiber with resin matrix which produces high performance materials with new properties is called carbon fiber reinforced polymer (CFRP).
Carbon fibers show an excellent mechanical properties compared to other fibers: high specific stiffness, very high strength in both compression and tension and a high resistance to corrosion, creep and fatigue [1].
The combination of this two different materials, create a new material properties which is suitable for many applications especially in engineering purpose.
Dry machining condition was used due to the effect of coolant to the properties of the CFRP.
Fig. 5 shows that cutting speed, feed rate as well as the tool design significantly affects the delamination.

Effects of temperature and strain rate on numerical sigmoid curve for AZ41 Magnesium alloy Faramarz Fereshteh-Saniee 1,a and Farzan Barati 2,b 1 Ph.d student of mechanical engineering, Department of mechanical engineering, Bualisina university, Hamedan, Iran 2 Asociate professor of mechanical engineering, Department of mechanical engineering, Bualisina university, Hamedan, Iran comffsaniee@basu.ac.ir a, bfarzanbarati@yahoo.
Further, lower mechanical strength and poor corrosion resistance of conventionally cast Mg alloys compared with aluminum alloys have also limited their use.
Among the lightweight materials, magnesium alloys are very promising candidates because of their excellent properties, such as low density, high specific strength, heat dissipation, damping, electromagnetic shielding and recycling.
Using the finite-element method, more accurate correction factor could be determined.
Sigmoid curves for AZ41 magnesium alloy Determination of the initial flow curve using the experimental results and the analytical sigmoid curves FE Simulations of the ring test with various friction factors Calculation of forming load and geometrical changes of the sample Determination of the numerical calibration curves Calculation of pa and for various reductions and frictional conditions Preparation of the plot of the numerical sigmoid curves Use the new flow curve Specifying new friction factor and flow curve No Are the differences between new values of friction factor and flow stresses and the corresponding previous ones small enough?

Trials show the high properties of self-centering and of wide hysteretic behavior of the RCW.
Numerical analyses confirm the mechanical properties and provide parameters to the evaluation of cyclic dissipation properties.
Once cracked, the layer of mortar shows interesting dissipative properties and still allows the self-centering when the stresses stop, because of the persistence in the elastic range of the vertical bars.
The tests show that the reduction of bearing capacity of the mortar layer of the base does not affect the functioning of the RCW: high mechanical properties of mortar should be avoided, to ensure the first cracking at the base of the building, in order to protect the overlying masonry structures.
,‘Interpret. of exp. shear tests on clay brick masonry walls and evaluation of q-factors for seismic design’ n.2/09, IUSS Press, Pavia, 2009.

From this study, it was found that the PET-modified mortars exposed to aggressive environments showed better resistance to chemical attack than unmodified one without substantially affecting the mechanical strength in tap water and UPV values decrease as the proportion of PET waste in the mix increases.
So, several works have been performed or are under way to evaluate the properties of cement-composites containing various types of plastic waste as aggregate, filler or fiber.
Moreover, Cobîrzan et al. [11] reported that considering sustainability principles, the building materials, structural and non structural element or an entire construction must be designed in order to resist to mechanical, chemical and physical damages, and not affecting air, water and soil quality during entire lifecycle.
Therefore, we felt it important to study and evaluate the influence of these additions, substitutions such as cement, on the sustainable properties of hardened mortar or composite.
For this we crafted four types of composite materials containing PET (0%, 6%, 12% and 17% by volume fractions), on which we measured the properties of PET-mortar composites by destructive and non-destructive testing and for chemical resistance to acid solutions at different concentrations.

Alumina particles attached to the resin prevent the crack growth, enhance thermal and mechanical properties, raise the glass transition temperature, and tend to increase the flexural strength and storage module.
After the tests, parameters optimizing the decomposition temperature properties are identified.
Through the study of quality characteristics response tables and graphs, and the analysis of variances, this research seeks the optimal combination of factor levels that affect the material properties.
The last column Significant identifies factors with over 95% confidence level as the significant factors.
The thermal decomposition temperature characteristics are investigated to find the significant factors of the epoxy resin under thermal property For the epoxy resin samples, the optimal combination of factors of the thermal decomposition temperature is 2wt.% Al2O3, 2wt.% SiO2 and 1.93wt.% diluent.

In general, the stability of ancient plasters is substantially affected by several inducing factors.
As a further matter, excellent mechanical properties are produced by HAp-NPs.
The assessment methodology was based mainly on determining the inner matrix morphology, surface microtopography, BET surface area and the physical-mechanical properties of the tested samples.
In addition, the physical and mechanical properties were evaluated.
Carmona-Quiroga, Use of nanosilica-or nanolime-additioned TEOS to consolidate cementitious materials in heritage structures: Physical and mechanical properties of mortars, Cem.

Utilization of these parameters according to end requirement can help in achieving optimum mechanical properties on hybridized composites.
This is to know if increasing the duration could offer better mechanical properties than the ones obtained in sample code “A”.
Careful increase of the rotor speed is necessary because at higher speed, there may be a possibility of fibre breakage, which could negatively affect the mechanical properties of the composite.
However, it should be noted that higher temperature can degrade fibre and drastically reduce the mechanical properties of composite.
In conclusion, conditioning of composite has shown to improve mechanical properties.

From the analysis, it can be seen that: at given pile-soil physical properties, the settlement of inclined angle of the pile is smaller than that of the pile installed vertically subjected to vertical loadings; it is not good for larger inclined angle of inclined pile when the pile subjected to inclined loadings and the pile top settlement is always smallest when the inclined angle of the loadings agrees with that of the pile; The location of the horizontal stress balance point is related to the factors, such as loading value, pile inclined angle, et al., when subjected to vertical loadings.
In order to further reveal the effect of inclined angle, pile-soil physical properties, etc., on the settlement of inclined pile, this paper uses the 3-D nonlinear finite element software and investigates the settlement characteristics and the influence factors on the settlement of inclined single pile under inclined loadings.
Hence, it can control the value of the pile’s slope to a certain range from the view of the factors such as construction technology, cost, et al.
Conclusions This paper investigates the settlement characteristics of inclined pile and the influence factors numerically using the non-linear finite element software Adina.
(3) The location of the horizontal stress balance point is related to the factors of loading value, pile inclined angle, et al., when subjected to vertical loadings.

When foundation is weak and there are differences in each layer’s density or material properties of subgrade filling, it is likely to appear situation (a) as possible as situation (b).
But due to the stability problem of wind-blown sand subgrade slope, when making analysis and comparison of subgrade slope stability in the situation of homogeneous filling material and situation of considering pavement materials properties and roadbed compaction partitioning, safety factor in theoretical formula of subgrade slope stability can be adopted to calculate wind-blown sand subgrade slope stability.
According to slope stability theory analysis results, when considering the subgrade upper part and materials properties of pavement layer , very small impact has been made on safety factor, and with the increase of height of the roadbed filling, its influence is getting smaller and smaller; Second,comparing with homogeneous filling material, the caculation safety factor considering subgrade upper part and pavement layer material properties has been increased slightly.
(2) But due to the stability problem of wind-blown sand subgrade slope, when making analysis and comparison of subgrade slope stability in the situation of homogeneous filling material and situation of considering pavement materials properties and roadbed compaction partitioning, safety factor in theoretical formula of subgrade slope stability can be adopted to calculate wind-blown sand subgrade slope stability.
One the basis of meeting the roadbed slope stability, desert subgrade can satisfy the mechanical stability of the slope.