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The results were analyzed to compare the mechanical properties.
Various experimental and numerical techniques were developed to measure the different mechanical properties, the stress intensity factor, the J-integral, and the CTOD (Crack Tip Opening Displacement) to determine the strength of the materials welded joint [8-11].
The amount of molten polymer and the temperature of the material affect the welding properties, and the rheology of polyethylene will be affected [3].
Hardness and tensile strength are the main elements characterizing the mechanical properties of an FSW weld.
Advances in the experimental analysis of mechanical properties have been presented along the BT-FSW joint.

Poly(ethylene-co-vinyl alcohol), a large molecule polymer was chosen to make the fibres for its biodegradable and biocompatible properties.
The thin sheets obtained were tested in uniaxial tension for their mechanical properties in view of the potential use as wound dressings.
Note that these factors are interlinked.
Mechanical properties under tensile loading were studied for potential use of the material as would dressings.
Carroll, RR Hantgan, M Guthold, 2009, "The mechanical properties of individual, electrospun fibrinogen fibers," Biomaterials, vol.30, p. 8

Mechanical properties of SM 520 and SM 570 at high temperatures.
At here, a SM 520 showed a little fast increasing pattern than others and this is assumed that a specific heat of the SM 520 is regarded as one of a major factors.
After calculation using mechanical properties and thermal ones, as the structural strength is increased the structural stabilities turned out to be worse.
Taleff, Experimental Investigation of Mechanical Properties of ASTM A992 Steel at Elevated Temperatures, Am.
Kwon, Evaluation Study on the Mechanical and Thermal Properties of High Strength Structural Steel at High Temperature, J.

The factors affecting segment floating are discussed first and analyzed by numerical simulation, including the properties of grouting material, the speed of shield tunneling, grouting pressure difference, the tunnel longitudinal stiffness, frictional force between segment rings and weight of the supporting system.
In this paper, according to the Nanjing cross-river engineering of large-diameter deep grooving shield tunnel, the factors affecting the upward moving of segments is analyzed by finite element method , and the result of numerical simulation is useful for making policies and measures to control segment floating moving.
The factors for segment floating The properties of synchronized grouting material.
The properties of synchronized grouting material determine the Initial solidification time and the length of influence areas.
The modeling work by MIDAS, a finite element software in structure calculation, is done to analyze the effects of above factors on segment floating as well as sensitivity.

Explains the effect of the silicon content on Fe-Cr alloy damping performance, the results shows that the silicon content affects obviously on damping properties of Fe-12.8Cr two element alloy, Fe-12.8Cr two element alloy can be with better damping properties when the silicon content is about 0.6%.The domain area and domain interface mobile ability affect on the damping performance of Fe-Cr two element alloy, which ensure the appropriate grain size to increase the domain area and improve the magnetic domain wall moving ability can improve the damping properties of Fe-Cr based alloy.
On this basis the author choose silicon as a third group element to research the damping properties of Fe-Cr based damping alloy.
Fig.2 The δ MAX curves of the alloys with mass fraction of Si% Grain boundary relaxation theory shows that friction of ferromagnetic damping alloy depends on two main factors of the domain areas and the domain wall moving ability [3], when the domain wall quantity and its mobile ability are reasionable, friction of alloy reaches the maximum value.
Conclusion (1) The silicon content affects obviously on damping properties of Fe-12.8Cr two element alloy, Fe-12.8Cr two element alloy can be with better damping properties when the silicon content is about 0.6%
(2)The domain area and domain interface mobile ability affect on the damping performance of Fe-12.8Cr alloy, which ensure the appropriate grain size to increase the domain area and improve the magnetic domain wall moving ability can improve the damping properties of Fe-12.8Cr two element alloy.

Fusion welding on the structural steel changes the microstructure of welded joint and influence the mechanical properties [1-2].
The chemical and mechanical properties of base material and electrodes are presented in Table 1 and 2, respectively.
Mao et al., “Effect of Nickel Contents on the Microstructure and Mechanical Properties for Low-Carbon Bainitic Weld Metals,” J.
Lee, “Factors Affecting the Inclusion Potency for Acicular Ferrite Nucleation in High-Strength Steel Welds,” Metall.
Tian, “Influence of Ti on Weld Microstructure and Mechanical Properties in Large Heat Input Welding of High Strength Low Alloy Steels,” J.

Cobalt was chosen for that purpose because it provides improved properties, high wettability and good adhesion between dispersed diamond particles.
The consequences on the wear resistance of saw blades, as well as on other physical and mechanical properties of the “diamond-cobalt-doping agent” composites were investigated.
Such process technique permits to obtain segments with industrially required properties.
The addition of Si affects the binder tribological and mechanical properties, which improve the adhesion between the binder and the diamond surface [3-5].
By contrast, these factors do not practically influence the wear resistance of the tool.

The viscoelastic properties of the PLA/pectin blends were assessed to determine their impact on printability and mechanical performance.
Mechanical properties, such as compressive strength, were analyzed to ensure the scaffolds could support cellular activities and tissue ingrowth.
Mechanical Properties: Compression Testing The compression strength of a scaffold is influenced by various factors, notably viscosity and strand width as illustrated in Figure 2a.
This is particularly relevant when considering the properties of pectin, known for its gel-forming abilities, which, when combined with PLA, can lead to a scaffold with improved mechanical properties [12,16,21].
Markert, Effects of porosity on the mechanical properties of additively manufactured components: a critical review, Mater.

Nevertheless, according to the authors’ knowledge, few studies deal with the evaluation of mechanical properties at high temperature.
High-temperature mechanical properties were examined by Uzan et al. [12] from room temperature up to 400 °C.
Liang, Orientation dependency for microstructure, geometric accuracy and mechanical properties of selective laser melting AlSi10Mg lattices, J.
Everitt, The microstructure and mechanical properties of selectively laser melted AlSi10Mg: the effect of a conventional T6-like heat treatment, Mat.
Vojtech, Changes in the microstructure and mechanical properties of additively manufactured AlSi10Mg alloy after exposure to elevated temperatures, Mater.

Factors affecting the weld quality 2.1.
Rotational speed Rotating speed is one of the main factors affecting the frictional heat.
So more factors can be used by less runs.
Breakdowns caused by random factors, 2.
Underwater friction stir welding (UFSW) is a modern underwater welding technique which consumes less energy and gives improved mechanical properties.