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The volumes of fct structures are one of reason to affect the damping capacity in M2052 alloy.
%Fe) alloy is one of developed Mn-Cu-based alloys recently, which show superior combination property [1].
While the mechanical behaviors of Mn-Cu alloys perform worse as the increasing Mn content.
Most researchers conclude that the damping capacity have a relationship of lattice distortion, which affects the properties of twinning structure [11].
The damping capacities originate from the irreversible slip of twinning boundaries, so the properties and quantities of twinning boundaries affect the damping capacity directly.

Mechanical properties and constitutive model study of Cemented Sand and Gravel is key to Cemented Sand and Gravel faced eath-rockfill dam.
Basing the Mechanical properties triaxial experiment of the material, the paper gives further discussion on the constitutive model of Cemented Sand and Gravel.
Hyperbolic model has the following several characteristics: (1) Suppose the relation between axial strain and deviatoric stress as hyperbolic curve, the tangential modulus can be determined from the results of ordinary triaxial soil tests; (2) Assume materials are homogeneous; (3) adopt Mohr-Coulomb strength theory; (4) Consider effect of stress level factor and nonlinear feature that the material tangential modulus changes with deviatoric stress changes
(5) 、、、、、、、 are 8 parameters affect initial modulus and Poisson’s ratio contained in the model (2) Establishment of Cemented Sand and Gravel Constitutive model There was a descending part after peak value on the strain and stress relation curve, namely the stage of strain softening phase that deviatoric stress decreases with the strain increase , the tangential modulus must be negative, hyperbolic model mentioned above can be used directly, hence, the paper uses the virtual rigid spring method to handle the strain softening problem. 1) Basic theory of virtual rigid spring method (a) stress-strain diagram (b) assumed-spring method Fig.1 Schematic diagram of assumed-spring method The relation curve between strain and stress of spring is linear illustrated by the straight line OA in the Fig.1 (a).

Properties of several cement compositions are examined and compared to properties of β-tricalcium phosphate and calcium dihydrogen phosphate monohydrate based cements.
This suggests that paste liquid affects the reaction between tricalcium phosphates and MCPM.
This indicates possible differences in the course of cementing reaction, and might be one of the factors contributing to differences in might contribute to differences in compressive strength of cement samples.
Tagami, Properties of injectable apatite-forming premixed cements, J.
Berzina-Cimdina, Setting properties of brushite and hydroxyapatite compound cements, Adv.

Introduction Aluminum matrix composites (AMCs) are being widely applied in many areas due to its good compressive strength, wear resistance, light weight and useful mechanical properties.
Ex-situ methods are usually expensive because it needs to produce reinforcement phases first, and if their size is required to be from some hundreds nanometers to some micrometers, that needed for improving mechanical properties of AMCs, the cost is even higher.
So, in this work the attention is focused on the kinetics of AlN particles formation, that was mentioned in [6], but in which the method only was suggested without concrete calculation, may be because of the lack of value of some factors.
However, these factors are difficult to determine and there is no further calculation so far.
The factor, ƟAlN, can be determined more easily based on the XRD results.

These alloys have outstanding corrosion resistances, mechanical properties and high heat resistance, and have been extensively used to resist extremely conditions in the aerospace, energy, power, chemical and petrochemical industries [2].
Deformation twinning may not occur at the crystal planes with low or high Schmid factors.
Schmid factor mapping.
Schmid factor index.
This indicates that the formation of deformation twins will affect the texture in the material.

According to the concept of effective modules, which allow to avoid this difficulty, such materials are replaced by the solid materials, which has all macroscopic properties equal to porous ones [5].
So, the one vibrated membrane does not affect to the others.
In thin film systems subject to mechanical strains, failure often occurs.
So, for any generated topology of the holes placement the dangerous stress and strain can be calculated using the founded values of the stress concentration factors.
Indeed, changing the thickness of the layers, the dissipative properties of polyimide layer, and the degree of perforation one can be widely changed location and bandwidth of efficiently detected sound waves.

Consequently, the influence of the temperature in the contact input parameters and the material properties are discussed in detail and a good correlation with the published results is achieved.
As presented earlier, a significant alteration in the workpiece mechanical properties inside the nugget zone was caused by a fluctuation in the temperature.
Bhadeshia, "Recent advances in friction-stir welding–process, weldment structure and properties," Progress in Materials Science, vol. 53, pp. 980-1023, 2008
Balasubramanian, "Effect of tool pin profile on microstructure and tensile properties of friction stir welded dissimilar AA 6061–AA 5086 aluminium alloy joints," Defence Technology, vol. 11, pp. 174-184, 2015
Mills, Recommended values of thermophysical properties for selected commercial alloys: Woodhead Publishing, 2002

During the test, the following factors were taken into account: the rate of combustion of the sample, the decay time of the sample, the formation of droplets during combustion.
The study of the thermophysical properties of materials was carried out using standard IT-S-400 calorimeters [1].
To measure the thermophysical properties in the meter, the method of a dynamic calorimeter is used.
Tyukaev Thermophysical properties of decomposing materials at high temperatures, Science and Technology, Minsk, 1975
Koltsov Analysis of thermal properties of crystalline antiperenes, Bulletin of Kazan Technol. un-that. 16 (18) (2013) 162-164

Two types of additives have been dedicated as promoting factors.
There has been a great effort to synthesize graphite with specific properties at as low temperature as possible by using catalytic graphitization.
YI Shoujunet al. found that the praseodymium content (15wt.%) and the heat-treatment temperature at 2400˚C were two important factors on the catalytic graphitization of furan resin carbon [18].
The results showed that La2O3 promoted the formation of more perfect and larger crystallites, and improved the electrical/mechanical properties of carbon/carbon composites [19]. 2.
The results show that, the HTT and the large of Ni particles also affect the structural components formed on heating at 1400˚C.

However, these also led to increasing costs which could greatly affect the markets.
Table 1 Parameters for the accumulator factor Accumulator volume (L) Piston area (m2) Dead volume at oil side (L) Dead volume at gas side (L) value 65 0.062 0.20 0.25 The selection of ideal or real gas behavior influences the calculation of the pneumatic state quantities.
In this calculation, the hydro-mechanical and volumetric efficiency are taken into account.
Generally, the hydro-mechanical efficiency of a pump or motor strongly depends on the pressure drop and the speed which are defined as: Hydro-mechanical efficiency of the Pump Hydro-mechanical efficiency of the Motor Theoretic torque of the Pump/Motor Where,, , and are the friction torque, effective torque of the pump, effective torque of the motor, displacement volume and pressure drop.
Conclusion The paper introduced a novel hydro-pneumatic accumulator system and finished the work from modeling through simulation, a lot of real factors are taken into account in order to build a more ideal mathematical model, structure parameters and physical properties of the components are determined to suit the power demands of HAS.