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This oversight could lead to under or over-conservatism in design predictions, affecting the reliability and economic viability of UHPC structures.
Several critical factors must be considered when evaluating model uncertainty in capacity models.
=Maximum This statistical description includes minimum, maximum, and quartile values for UHPC geometric properties like beam depth and width, as well as material properties such as fiber volume percentage and compressive strength.
A simple linear regression analysis between the bending capacity Mc the influential basic variables revealed some preliminary insights into factors affecting the flexural capacity of UHPC elements.
Azizinamini, “Experimental and numerical study on mechanical properties of Ultra High Performance Concrete (UHPC),” Constr.

The range of interest and condition of non-negativity of the equilibrium distributions are identified for a broad range of diffusive properties ratios.
(15) Figure 3: Influence of the diffusivity ratio on the relaxation factors and non-negativity zone Range of use for heterogeneous materials.
The LBM-BGK simulation of the diffusion process in heterogeneous media hence requires a control of the relaxation factors ensuring the positivity of the equilibrium distribution functions for given properties.
The LBM code was previously validated with the Mori and Tanaka's analytical solution allowing the upper and lower bound of equivalent properties on heterogeneous materials.
The LBM computing calculation on multiscale heterogeneous media permit the identification of the apparent diffusive properties.

The widespread use of this steel is due to its unique property - an increase in mechanical and operational properties under the influence of shock loads.
Results and Discussion The slag mode of the steelmaking process significantly affects the mechanical properties of alloy elements steel, especially impact strength.
We know that in order to ensure the highest values of the mechanical properties of steel, the minimum amount of aluminum in the alloy is required not to exceed 0.041%.
This significantly reduces the mechanical properties of steel.
The quality of the alloy is affected by technological factors such as the sequence of technological operations in melting and the basicity and oxidation of slag. 2.

In conclusion, the determination of the possible applications of the technology in practice after changing the properties of the material around the hole.
Distance from basic material Flowdrillových holes and heat-affected zones shows a typical single-phase microstructure of austenitic stainless net polyhedral twin austenite grain boundaries.
Structure change takes place gradually from the edge of the hole to 3mm, and very significantly, up to 8mm from the edge of the hole is still changing properties.
Pasko: Influence of technological factors of die casting on mechanical properties of castings from silumin, 2013.
Baron: Treating Models of the Mechanical, In: Journal CA Systems in Production Planning.

The porosity, flexural strength, DTA/ TGA, and NMR are investigated to study the mechanical and microstructure properties of the geopolymers.
Their porosity can be less than that of cements or mortars and thus superior mechanical properties are obtained [5].
The mechanical properties were determined by porosity and flexural.
Mechanical properties and the microstructure performance of specimens were tested after 1, 7, 14, 28 and 60 days.
Porosity Figure 2 presents the porosity is a main factor of affecting the sample’s mechanical characteristics.

is wave number; is the density of the PZT actuator; is the mechanical impedance of the PZT actuator; is the mechanical impedance of the host structure; is the strain; is the stress; is the complex modulus of PZT at zero electric field, and is the mechanical loss factor of PZT; is the piezoelectric constant; is the electric displacement; is the complex dielectric constant at zero stress, and is the dielectric loss factor.
For a given PSC beam, the mechanical impedance of the PZT actuator is a constant and the mechanical impedance of the host beam is the only variable influencing the change of the coupled electric admittance.
In this study, this coupling property of the PZT is utilized for monitoring the change of prestress forces, which enables one to measure the impedance changes in prestress forces.
Table 1 Key properties for the PZT patch (P-51) Physical parameters Symbol Values Density 7450 kg/m3 Dielectric constant F/m Piezoelectric strain coefficient m/V Elastic modulus N/m2 Mechanical loss factor 0.001 Dielectric loss factor 0.012 a) PZT patch and anchor plate b) The PSC beam Fig. 3.
Further studies will be conducted to investigate and calibrate the effects of environmental factors induced uncertainties on the EMI spectra.

In this study variations of the mechanical properties as well as wave interlocking have been related to the conformation of the interfacial waves (IW).
The interfacial waves result in a significant deterioration of the final product's properties of interest (i.e. barrier, mechanical, optical, etc.).
These irregularities are due the to different rheological properties of the material used and can significantly deteriorate the mechanical or optical properties of the product.
MATERIALS PROPERTIES AND PROCEDURE Two polymer systems utilized in these experiments are HDPE and PP.
The figure clearly shows effects of the stable/unstable interface on the mechanical properties of extrudate products.

Introduction Although pumps are fluid-flow machines, mechanical losses, friction losses in particular, are a substantial factor affecting their total efficiency.
Apart from friction losses affecting the general efficiency of hydraulic machines, the life of tribological pairs is of great importance.
Unsatisfactory performance of seals makes another problem affecting pump efficiency.
Textured surfaces mean surfaces possessing isolated regular areas that can be described by geometrical, physicomechanical and physicochemical properties which are other than those used for the rest of the layer.
Model of textured surface layer: a) surface texture, b) volume texture; 1 – base, 2 – transitory layer, 3 – specific layers [5] Regularity of areas of distinguishable properties is characteristic of texture.

To reduce the residual stresses and to partially restore the plastic properties, all the tube assemblies of OSP undergo the heat treatment in the form of high temperature tempering at 6500C in the furnace.
Grigoryants, Theory of welding deformations and stresses, Moscow: Mechanical Engineering, 1984
Kolomiytsev, Influence of residual stresses and properties of HAZ metal on fatigue of welded joints in a corrosive environment, Automatic welding, 9 (1990) 5-8
Pshenichnikova, Influence of technological and operational factors on the bearing capacity of welded joints of offshore fixed platforms, Technology of shipbuilding, 9 (1990) 79-84
Rensky and others, Strain gauges in mechanical engineering: A reference book, Moscow: Mechanical Engineering, 1975

Among the various FSW factors, the tool material, tool geometry and FSW equipments are critical in the success of FSW of HMT materials.
Silicon Nitride (Si3N4) has excellent high temperature properties that make it a potential FSW tool material.
The joint strength and other properties are also found affected by the tool wear and type of tool materials.
It is seen that the shape of the tool pin influences the flow of plasticized material and affects weld properties.
Various researchers reported better mechanical properties for FSW joints made with tapered cylindrical (TC) pin profile and higher taper angle is beneficial in producing better plastic flow conditions that are conducive to high strength welds.