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The results are discussed in terms of residual microstructures and mechanical properties.
A material with a good damping capacity is able to absorb mechanical vibrations or damp them out quickly, which is an important property in applications such as crankshafts and machinery bases [11].
Damping can be expressed through different parameters such as damping ratio or the loss factor.
The loss factors of Zn-22Al superplastic alloy, aluminum and steel sheet were measured as well.
Table 3 Obtained Loss Factor values for different materials Steel sheet Aluminum (6061) Zn-22Al Superplastic vibration-damping sheet Loss factor 0.11 0.12 0.19 0.32 We can confirm that the loss factor of superplastic vibration-damping steel sheet composite is the highest; therefore, we consider it to be a good vibration-damping sheet with a high damping capacity.

However, effective mechanical properties of honeycomb core materials are altered in accordance with the loading direction because of orthotropic geometry.
Equivalent plate model adopted effective mechanical properties of the core layer calculated by theoretical prediction for FEA.
Material properties of the respective layers are listed in Table 1.
The thickness of adhesive layer was assumed 0.1mm Results and Discussion Table 2 shows effective mechanical properties of various honeycomb cores calculated by FEA and theoretical prediction.
A tensile test and its finite element simulation have been performed to analyze interlaminar stresses affecting the fracture behaviors of HSC plates.

It is shown that the thermal expansion coefficient (CTE) plays a critical role in residual stress development in the substrate and consequently affects the mechanical properties of the coated sample.
Furthermore, and after coating, the thermal mismatch, as a significant factor on the final residual elastic strain of the substrate, interferes with the developed strains during the coating.
Details of the substrate properties is found in [7].
∆λλ0=k×αSp+αδ∆T+k εm (1) where, Dl is the wavelength shift, l0 is the initial wavelength at the beginning of the experiment, k is the gauge factor, εm is the mechanical strain, αδ is defined by the change of the refractive index with temperature, αsp is the expansion coefficient of the sample (1/°K), and ∆T is the temperature change (ºK).
In these measurements, the 3mm grating length along the sample can be affected by the temperature changes, hence the measured wavelengths changes is the average of the temperature distribution in the entire substrate.

Upon striking of a projectile, a target can fail by a variety of mechanisms depending on different parameters such as impact velocity, geometry of interacting bodies, and material properties of both the projectile and target.
A prime objective is to understand the reliability of ballistic merit ratings based on thick backing technique. 2 Experimental Details Test Materials Two grades of alumina (prefix AD) were used as test materials and their physical and mechanical properties are in Table 1.
Properties of ceramic plates [5] Sintering Ceramic Plate Temp
Also cross-section area, mass of the impactor are important factors which affecting velocity of projectile [6].
The results reveal that the thickness of the ceramic and the velocity of projectile are two factors which are considerably effective on the ballistic efficiency (η) of ceramics.

The nanocomposites showed higher tensile mechanical properties when compared to the properties of pure polyamide, and the various conditions of aging influenced the degradation of these materials.
These improvements are related to mechanical properties, barrier properties, optical properties, etc. [1].
Mechanical properties.
In general, there was a reduction in the mechanical properties.
The condition of aging influences on the mechanical properties of the polyamide 6 and of the nanocomposites.

We established the influence of impregnation modes (temperature, catalyst concentration), continuous steam explosive treatment with afterwash (temperature, pressure, intensity of mechanical action), as well as the properties of activated lignocellulose fibers (composition and morphological structure) on the operational properties of WCM.
All of the above proves the negative effect of washing the activated fibers on the final properties of WCM based on them and gives grounds to assert that the presence (including the quantity and qualitative composition) of steam explosive treatment products in activated fibers, as well as the pressing temperature, are key factors in the formation of the physical properties of WCM.
In this case, more soluble fractions participate in the formation of a binder during hot pressing, and have a positive effect on the strength properties, and the condensed fractions are destructed during hot pressing, polymerizing even more, negatively affecting the final strength.
Bako, Analysis of mechanical strength of woven strip composite at petung bamboo (Dendrocalamus asper) epoxy resin tape: tensile strength properties of bamboo strips, IOP Conference Series: Earth and Environmental Science. 343:1 (2019)
Bazan, Bio-based polyethylene composites with natural fiber: mechanical, thermal, and ageing properties, Materials. (2020) 13:11

Many factors affect the movement of the soil and ground support systems around excavations [1,2,3]: the type, the rigidity and the degree of embedding of shoring system; the method of construction of shoring system and the phasing of work; the construction stages; the methods of construction of structures within the excavation; the intensity of the overloads; the weather conditions; the nature and properties of soils; the neighboring structures and the shape and the depth of the excavation.
Some of these factors can be controlled by the designer but others depend on the actual conditions of works.
The mechanical behavior of soils is described by the model elastic perfectly plastic non-associated of Mohr-Coulomb in which mechanical parameters are provided in Table 1.
We show that taking into account structural elements affects the movement of soil and walls induced by the excavation, and that the realization of an excavation nears a foundation strongly affects the movement of the latter.
Shahrour I., Numerical Finite Element Analysis of the behavior of structure near to deep excavations in urban area, International review of mechanical engineering (I.RE.M.E), Vol. 2 N. 2 (2008)

., 18, GSP-170, Ekaterinburg, RU620041, Ekaterinburg, Russia, 2 Bochvar All Russia Scientific Research Institute of Inorganic Materials, Moscow, Russia a popova@imp.uran.ru, b vpopov@imp.uran.ru Keywords: In situ composite, transmission electron microscopy (TEM), X-ray analysis, alloying, drawing, annealing, structure, texture, mechanical properties Abstract.
The structure and properties of in situ Cu-Nb composites have been studied by the methods of TEM and SEM, X-ray analysis and mechanical testing.
However up to now not all the factors responsible for high mechanical characteristics have been revealed, and for further improvement of properties it is of importance to study the effect of doping and modification of processing schedules on the structure of these materials.
Their structure, texture and mechanical properties were studied by the methods of transmission (TEM) and scanning (SEM) electron microscopy, X-ray analysis, tensile testing and microhardness measurements.
That is why one of the goals of this paper was to study the effect of intermediate annealing on the structure and properties of Cu-Nb and Cu-Nb-Zr composites.

Tool B made with nanometer TiC powders was high mechanical properties compared with that of Tool A made with micron TiC powders.
The mechanical properties of the two kinds of cermet cutters are shown in Table 2.
So Ti(C, N)-based cermet cutters made with nano TiC original powers have the more excellent comprehensive mechanical properties, and their tool life is much more longer.
(2)The original powder particle size has a direct influence on the refinement of the cermet organization, thereby affecting the mechanical properties of the material.
Though the nano TiC original powders reduce the fracture toughness of the cermet, they improve the mechanical properties.

The sintering temperature and the heat-insulation time affect the bending strength obviously.
The microstructure was observed on the XTB-1 Zoom stereo microscope and the QUANTA2000 Scanning electronic microscope, and the mechanical properties were tested on the CMT4504 Electronic multiple-functional testing machine and the HR150 Rockwell hardness tester.
The properties are shown in Fig.7 and Fig.8(the number of sample is shown in Table 1).
It convers from the mechanical state into the 60 70 80 90 100 110 1234 No.
The content of Cr affects it greatly, but the content of WC hasn't great affects Factors Levels 1 2 3 Cr（wt%） WC（wt%） T（°C） t（min） 5 10 15 3 6 9 580 620 680 5 8 12 d c a b on it.