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The presence of cavities in superplastic-formed material adversely affects the mechanical properties.
Experimental method Fig. 2 Mechanical properties of samples at 623K in uni and biaxial tests.
Mechanical properties test.
Mechanical properties at high temperatures.
Mechanical properties of work formed materials under high temperature at room temperature.

In the process of shield machine tunneling, a variety of strata will be encountered, which are significantly different in physical and mechanical properties [1, 2, 3].
And the cutter should bear the random loads which change remarkably, so the strength and rigidity of the cutter-head could be an important factor to affect the safety of shield tunneling.
The arrangement of cutters, which serves as direct tools to cut the rock, could directly affect the mechanical properties of the cutter-head.
Based on the analysis in the CAD/CAE, the measures were put forward to improve the cutter arrangement, so the mechanical properties of cutter-head could be improved.
Therefore, when the mechanical properties of the improved cutter-head are checked, only the analysis of cutter-head in the worst geological boundary conditions is adopted.

Late rehabilitation of the bridge considered the replacement of the 16 structural deficient anchorage elements, plus 4 elements qualified in good condition, to complete a reliability analysis for the remaining 92 elements from the statistical mechanical properties of the removed pieces.
Paris coefficients and fracture toughness Mechanical property Experimental Value Coefficients to Paris Model Equation M 10.9 C 1.9 x 10-19 Fracture Toughness KIC [MPa m] 26 Figure 6.
Summary results from field UT in the Río Papaloapan Bridge Structural deficiency Number of anchorage elements Type of element Large Grain Size (ASTM 2) 8 2 High Pore Content 2 1 and 3 Probable large Grain Size 6 2 Once the structural deficient elements were identified, a rehabilitation project was proposed to replace these elements and an integrity analysis was required to evaluate the structural reliability of the remaining elements, considering the statistical characterization of their microstructural, mechanical and chemical properties.
At the same time, in other four elements, cracks were found near the welding area or the heat affected zone (HAZ) using the liquid penetrant technique.
In general, there is some relation between the microstructural characteristics (grain size, pores and inclusions) and the cracks; but the most significant factor is given by welding and post heat treatment processes.

The non-destructive testing methods are widely used to assess physical and strength properties in the building diagnostics [2].
Progressive changes in the concrete and reinforcement properties can be monitored etc., g.
This testing methods is not just for designating concretes mechanical properties.
De Lorenzo, 2005 [13] presented by in situ non-destructive investigations, the evaluation of the mechanical properties of RC structures.
Vijay Wairagade et al, 2019 [22] carried out a rebound hammer test with the target of predicting on the mechanical properties of the concrete columns used in the college.

Thus, exploring a practical new technology to improve the surface properties of the H13 steel is significant.
It should have some suitable physical and chemical properties, such as enough thickness, zero defect.
These properties make it widely used in industry, such as aerospace, nuclear power, ship industry [1].
Electron beam surface modification technology has some properties, such as high energy absorption rate, high scan speed, flexible beam spot adjustment, large equipment power, processing sample treatment in a vacuum environment.
Mechanical industry press, Bei Jing, 1998, pp. 298-304.

It is necessary, however, to take account of factors such as process-related extreme weld cooling rates, dilution levels, possible nitrogen pick-up during welding, etc.
It is known, however, that mechanical properties suffer only if the σ-phase forms as a continuous network in the microstructure, which occurs at sigma levels above about 4 vol. %.
Both mechanical properties and corrosion resistance are then adversely affected.
Selection of base metals containing adequate nitrogen is an important step in maintaining phase balance in the weld HAZ and improving its properties.
Farrar, Influence of microstructure and composition on mechanical properties of some AISI 300 series weld metals, International Materials Reviews 38 (1993) 25-51

Therefore, during the process, the resolution and precise alignment factors are taken into account to prevent circuit and device failure.
Semiconductor materials possess electrical and physical properties that allow the unique functions of semiconductor devices and circuits [9].
These properties are examined along with the basics of atoms, electrical classification of solids, and intrinsic and doped semiconductors.
Factors like resist thickness and developer concentration are almost constant for both device features.
Based in the mechanical properties of the device structure, major factors could be affected.

This behavior causes the GFRP materials used in the construction of planing hull vessels to degrade in their mechanical properties in a shorter period of time than normal.
The damage shown in Fig. 2 was not merely a surface crack in the gel coat, but the damaged area penetrated in the thickness direction, affecting several layers of the laminate.
It is important to note that the way in which the warp and weft threads were intertwined gave the fabric a very curly surface, and this distortion in the threads produced a decrease in their mechanical properties.
The mechanical properties of the materials are shown in Table 3, which also describes the sequence of layers (from layer 1 outside the hull to layer 10 in the inside of the ship), the weight of resin (nominal) for every layer, and the estimated resin volume.
[13] Jeshti, D.K., Nayak, R.K., 2019, Improvement of mechanical properties of hybrid composites through interplay reaarangement of glass and carbon woven fabrics for marine applications, Composites Part B: Engineering, Vol. 168, pp. 467-475

By calculating phase difference for different values of dielectric thickness, dielectric permittivity, standoff distance or dielectric permittivity in waveguide, which affect sensitive frequency, we discussed the relationship between the sensitive frequency and other parameters, and the relationship between the sensitivity and other parameters; and discussed the development of a technique which utilizes the phase properties of reflection coefficient of a microwave signal as it passes through the dielectric plates and is reflected by the conducting plate. 2.
Theoretical result In the near-field approach, the properties of the phase of the reflection coefficient calculated at the reference plane of a probe (in this case the aperture of a rectangular waveguide) are described in theoretical bases in above.
This shows that the uniform dielectric permittivity will not affect the choice of frequency sensitive.
Frequency/f/GHz Standoff distance Phase difference/deg 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 5mm 10 15 20 These two factors (dielectric thickness and permittivity) are internal factors of the measured materials.
In order to improve the detection sensitivity, external factors should be studied.

As a result, composite structure with improved mechanical characteristics can be manufactured.
This labor-consuming process results in high fiber volume fraction, void-free, well-consolidated composite structures with excellent mechanical properties.
The major factor that determines the quality of the final product is the compaction force.
The proper heating of the material is one of the key factors when high quality is the goal.
Secondly, maintaining the constant consolidation force during the lamination process is crucial because it greatly affects the mechanical properties of the final product.