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In order to analysis thermal stress of mass concrete accurately, material properties of mass concrete are studied by numerical simulation method, and the equivalent age is introduced to describe the mechanical properties of concrete.
Material properties and affecting factors must be studied firstly.
Thermal, cracking, seepage, mechanical strength and deformation characteristic of generated concrete varies with difference of aggregate, cementitious materials, the content of water, which is also affected by the factors of construction quality, humidity and temperature of external environment etc.
The material properties change constantly with time from initial pouring to structure aging.
In order to analysis thermal stress of mass concrete accurately, material properties of mass concrete are studied by numerical simulation method, and the equivalent age is introduced to describe the mechanical properties of concrete.

In view of this, it is very important to stabilize the pressure at the entrance, but pressure fluctuations arising from complex factors are difficult to solve one by one.
Low-frequency fluctuations caused by changes of the supply voltage, water pressure, atmospheric temperature and other external factors that are hours-periodic.
Of them the important factor is the solid broken.
In addition, parameters can not screw with the process parameters and material properties to adapt, for example, the starting point compression section is too short or melting occurs too late, etc., will have instantaneous flow of solid-phase plug.
In view of the pressure fluctuations in the extruder parts, superposition of several factors result from the effects.

It was found that the tensile properties are seriously affected by the CNF fraction, ultrasonication time and mechanical stirring time.
Introduction Carbon nano fibers (CNF) are being widely researched recently due to their outstanding mechanical, thermal, and electrical properties.
The use of ANN has recently been used in modeling the physical, chemical and mechanical properties of materials[6-7].
Experimental study of mechanical and electrical properties of carbon nanofiber/epoxy composites.
Artificial neural network modeling to effect of reinforcement properties on the physical and mechanical properties of Al2024-B4C composites produced by powder metallurgy.

Because polymers offer attractive mechanical and chemical properties, polymers are becoming the most promising materials for the microfludic devices [3].
As one of polymers PMMA has been particularly useful for microfluidic chips because of the features of low price, excellent optic transparency, and excellent electric and mechanical properties.
Thermal bonding processing parameters depend on the polymer's viscoelastic property.
The factors of affecting the bonding process have three parameters.
Because the temperature is main factor affecting the bonding quality, lots of bonding experiment was completed from 60°C to 100°C.

Influence of Process Parameters Variation on Microstructure and Mechanical Properties of SLM-Printed 316L Stainless Steel Mike T.
The choice of process parameters is crucial for achieving desired material properties, as it directly affects the microstructure and mechanical behavior, which is important when optimizing for potential applications in several fields, such as aerospace and automotive.
To assess the impact of these factors, tensile tests, microhardness measurements, and X-ray diffraction (XRD) analyses were conducted.
Results such as highly anisotropic mechanical properties and scanning speed-dependent porosity are in good Fig. 6.
The impact of orientation on mechanical properties and texture is more significant than that of hatching pattern.

There are many factors affecting the mechanical properties of SiCf /SiC CMC, such as strength of fibers, porosity of SiC ceramic matrix and interfacial bonding strength.
Current studies estimate fiber pull-out is one of the decisive factors affecting the mechanical properties of ceramic matrix composites.
Mechanical properties of SiCf/SiC CMC.
The mechanical properties of fibers and the interfacial combination had great influence on the properties of ceramic matrix composites.
The mechanical properties and microstructure of SiC-AlN particulate composites.

Studies have shown: the braking friction heat is the most direct factor influenced on the variation of physical property, mechanical property and chemical property of automotive brake friction materials.
On the one hand, the braking friction heat will lead to change of material composition and tribological properties in the surface of brake disc.
Friction braking can generate the heat, it seriously affects the physical-mechanical and chemical properties of friction materials, it is also the direct factors which affect the tribological properties and wear mechanism of the friction materials [2].
Braking heat led to uneven wear of the braking surface material, it makes the material in the middle area of the brake pads wear more serious, and led to the composition and frictional properties of the material surface to change.
Automobile friction brake finite element model Thermal analysis of automotive brake friction and subject to many factors, in which, some are the main factors, and others are secondary factors.

A thin film sensor, due to its piezoelectric properties, upon hitting the object, the direct mechanical stress on the film would cause the film to polarize and generate voltage.
The hysteresis loop was then used to determine ferroelectric parameters Pmax, Pr and Vc; Atomic Force Microscopy (AFM) was used to determine the factors affecting the ferroelectric properties of samples. 3.
Piezoelectric properties are difficult to be measured directly, but are estimated based on the measured ferroelectric properties.
A high polarization in ferroelectric analysis suggests a higher voltage generated due to piezoelectric properties with the application of mechanical stress.
After factoring in the relative significance of the two important factors needed for a tactile sensor application, we conclude that the PSZT-PZT films perform better than PZT-PSZT films.

Impact toughness influence on the bending properties of rock bolt Zhongwei.
For this case, developed high prestressed, strong rock bolting system, including high strength rock bolt, strip and anchor cable which mechanical properties has been greatly improved, truly achieved rock bolt initiative and timely support[1-3].
Factors that affect impact toughness of steel has chemical composition, heat treatment, smelting method, inherent defects, processing technology and the ambient temperature[7].
Visible, screw thread influence the bending properties of rock bolt threaded section.
Mechanical properties of metallic materials handbook[M].

The accuracy of inverse estimation for viscoelastic material properties is usually affected by two main factors: mechanical model and the initial value of iterations.
Introduction Human diseases are usually correlated with changes in mechanical properties of soft tissues.
Therefore, nondestructive and noninvasive measurements of mechanical properties are of great importance in medical diagnosis field.
For better understanding of the relationship between human diseases and tissue mechanics, various methods have been developed to measure the mechanical properties of biological tissues.
Fung: Biomechanics: Mechanical Properties of Living Tissues.