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The aim is to find out what amount of recycled concrete as a binder influences final mechanical properties of the concrete.
This parameter is affected by the amount of cement in the mixture.
Topič et al., Effect of PVA modification on the properties of cement composites, Acta Polytechnica 55 (2015) 171-174
Topič et al., Development of mechanical properties of cement paste with different addition of polyvinyl alcohol, Applied Mechanics and Materials 732 (2014) 81-54
Tesárek et al., Influence of aggregate stiffness on fracture-mechanical properties of lime-based mortars, Applied Mechanics and Materials 486 (2014) 289-294.8 [9] M.

The properties of aluminium alloy products are affected by several factors, the most important among them being determined by the manufacturing technological process, particularly by metal forming.
During their development, the knowledge of relationships between microstructure, texture and mechanical properties has been considerably enlarged [8,9].
Static mechanical properties in both main directions are in Table 2.
During the evaluation of FCG rates, it was ascertained that the most dominant factor affecting the crack growth rates particularly in the area of smaller values and near-threshold area was the value of the coefficient asymmetry R.
Macek: Heterogeneity and Anisotropy of Mechanical and Fatigue Properties of High-Strength Aluminium Extrusions.

All the properties values of BIB masonry obtained compared with SB and CSB masonry values.
The masonry units are the main factors that affected the compressive strength of the walls under compressive loads [2].
The features of brick masonry are inclined by the properties of bricks and mortar [3].
In this study, the experimental program involved the preparation of masonry walls for determination of its mechanical properties and the preparation of cube sample for grout and thin layer mortar properties.
Eziefula, “Comparison of physical and mechanical properties of river sand concrete with quarry dust concrete,” Sel.

Material properties, shape, degree of freedom and connection are defined.
So it should be do that assess the seams influence on antenna mechanical performance.
The minimum factor of safety is 1.9.
Acoustic loads and boundary layer turbulence are transformed into mechanical vibrations in the launch vehicle, which affect the antenna on spacecraft.
Table 2 lists the stress value and factor of safety of each part of antenna.

Therefore, the study of changes in the properties of the composite material from which high-pressure fire hoses are made due to the influence of various factors on it is relevant. 1 Literature Analysis and Problem The process of operating high-pressure fire hoses is related to the fact that the composite material from which they are made is exposed to various influences [1].
In [2], a change in the mechanical properties of rubber-like materials that occurs during their long-term storage, which subsequently affects the appearance of defects in them, is considered.
In [3], the change in the mechanical properties of rubber cord composites subjected to cyclic tensile loads was investigated, taking into account the characteristics of their self-heating.
In [20], a study of the mechanical properties of the material from which a fire hose with an internal diameter of 77 mm was made, which had no mechanical damage during its torsion tests, was conducted.
Pustovoitov, Determining mechanical properties of a pressure fire hose the type of «T», Eastern-European Journal of Enterprise Technologies. 6 (2019) 63–70.

The rotational speed, load and temperature are main influence factors of the wear of 45 steel.
Introduction As a high elastic material, rubber has some unique properties (abrasion resistance, oil resistance, etc.) that generally metal and other polymer metal have not.
The wear behavior of NBR to metal is influenced by multi factors, and the effect of each factor cannot be described by accurate mathematical language.
The influence of wear factors is very much.
Prediction model can only consider the main factors of the wear and not considered the interaction between various factors.

Computational fluid dynamics and Numerical acoustic response for ship accommodation areas due to propeller excitation, towards a human factors recommendations Hany Abdelkhalek1,a, Duanfeng Han1,b, Gao liangtian1,c,Qing Wang 1,d 1 College of shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China.
ahany_abdelkhalek@hotmail.com, bhanduanfeng@hrbeu.edu.cn, c gaoliangtian@163.com, dwangqing@hrbeu.edu.cn Keywords: acoustic comfort design, human factors, ship propulsion.
Structureborne sound is directly induced by any mechanical force.
Recently researchers found that Long-term exposure to infrasound and low frequency noise (ILFN, including infra-sound) can lead to the development of vibroacoustic disease (VAD). [9] This acoustical phenomenon affects organs and systems other than hearing, particularly the respiratory tract.
The international studies on maritime accidents has shown that fatigue is continuing to be either the main cause or a contributory factor in a considerable number of casualties at sea resulting in the loss of life and damage to the environment and property.

Its value is affected by several factors, one of the main was the maintenance of the structure.
The factors that affect the measurement inaccuracy in the control and assessment of concrete strength by non-destructive methods are inhomogeneity of the concrete materials in the sample volume; under-compacted and over-vibrated sections of structure; the disintegration of flow concrete; surface defects; corrosion and carbonation of upper layer.
Thus, the production and technological factors have a rather complex effect on the determination of the average concrete strength and explain the result of any particular test.
Its value is effected by several factors.
At the same time, along with the assessment of physical and mechanical properties of the structure by non-destructive methods, it is necessary to determine the actual concrete strength of control samples made in batching plant laboratory and solidified in permissible humidity conditions.

The results of the research are the obtained mathematical models that can be applied to analyze the influence of individual factors, as well as their combination on the quality indicators of the process of forming coatings with given physical and mechanical properties.
To solve this problem, studies have been carried out, the purpose of which is to develop a multicriteria model of technological processes for applying composite materials and optimizing the modes of their formation with the possibility of obtaining plasma coatings with specified physical and mechanical properties.
A total of 32 experiments were carried out for one series, since 5 factors were taken, changed at two levels.
The resulting coatings were compared in terms of their emission properties with cathodes, the coating on which was obtained by conventional methods. 2.
Investigation of the properties of plasma coatings based on the use of regression analysis.

The knowledge of the mechanical properties of the material used is a necessary prerequisite for the quality design of any structural unit.
It applies to components manufactured using Rapid Prototyping technology (hereinafter only RP) multiple times, because it is not enough to only know the mechanical properties of a material from which the components are printed.
Other factors affect the component printing, such as the orientation of the printed component, the selection of the component's internal structure, possibility of connection with other materials, etc.
"Dukarit C 46A:G226: Durasil 80" polyurethane mix [7] was prepared in two concentrations, 1:1:0.5 or 1:1:1, where the last digit means the amount of filling material in the mix, which has a significant impact on the final mechanical properties.
Slota: Optimization of FDM Prototypes Mechanical Properties with Path Generation Strategy, in: Applied Mechanics and Materials Vol. 474. 2014, pp. 273-278, ISSN 1660-9336