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The important aspects of interest during FSP which affects the material properties are; localized heating and material flow.
Obtaining fine and equiaxed grains is the most embraced technique to enhance the mechanical properties of metals without altering its composition [12].
Apart from the volume fraction, the other factors affecting the Orowan strengthening are particle size, inter particle spacing, and their distribution.
Effect of Friction Stir Processing on Microstructure and Mechanical Properties of a Cast-Magnesium–Rare Earth Alloy.
Effect of process parameter on mechanical properties and fracture behaviorof AZ91C/SiO2 composite fabricated by FSP.

Research parameters, such as dimension, compressive and flexural strength, density, and water absorption, are adopted to evaluate the physical and mechanical properties of the brick specimens.
However, the increasing awareness on environmental protection and the drive to reduce greenhouse gas emissions are emerging as challenging issues affecting the production of construction mineral, such as natural aggregates.
All these factors may result in the continuous reduction of mining and quarrying activities and a shortage of natural sand, thus increasing the prices of raw materials.
Results and Discussions Physical and Mechanical Properties of Bricks.
The test results on properties of bricks are listed in Table 6.

Aside from these, the mechanical properties of natural fiber composite are surprisingly good.
The water absorption issue can also result in insufficient adhesive strength between matrix and fiber, thus affect the mechanical properties of the composite [8].
Aside of modifying the fiber surface, fiber loading is another factor which will affect the overall performance of the composite.
Effect of Different Surface Treatments on Mechanical Properties of the Composite.
However, mechanical properties of a composite can be weakened by improper surface treatment.

Considering the complex hydrothermal environment of the composites structures in these fields, it is very significant to analyze the mechanical properties and behaviors of the composite materials.
According to the references [6] and [7], the properties of unidirectional fiber-reinforced composite, especial tensile strengthen and compression strengthen, are mainly affected by hydrothermal factor.
[5] Yaohua Li, Ning Zhang: ‘Environmental Factors in Aircraft Structural Design’.
[7] Jianhua Liu, Dong Cao: ‘Moisture Absorption Process and Impacts on Mechanical Properties in Hydrothermal Environments for T300/5405 Composites’.
Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials.(2005)

Mineral component and pore space topology are the most important physical factors affecting the soil-water characteristic, and that dry density synthetically reflects the mineral component and pore space topology.
Research results show that the soil-water characteristic curves for all dry density soil intersect at the point, which is optimize moisture content, and suction is the most important factor affecting the compaction.
Compaction is a classical application involving unsaturated soil, the purpose is to improve the mechanical and hydraulic properties of soil.
The relationship between moisture content and matrix suction is affected by such factors as the soil types, the material composition, the pore structure and temperature etc, therefore, the SWCC can not be got by theoretical analysis based on unsaturated soils’ basic properties(such as capillary features, permeability and hydraulic properties).
The mineral composition, particle shape and gradation, density and different dry wet path even different times of the dry wet cycle of soil are the important factors of SWCC, but mineral composition and pore structure are the main factors of SWCC.

The mechanical properties were then investigated by Brinell hardness and Vickers microhardness measurements.
This phenomenon led, in turn, to a worsening of the mechanical properties of the alloy.
The mechanical properties were then determined by hardness measurements.
Al-Belushi, Influence of aging parameters on the mechanical properties of 6063 aluminium alloy, J.
Pereira, Effect of chemical composition variation on microstructure and mechanical properties of a 6060 aluminum alloy, J.

In order to improve the static performance of high speed machining center spindle box, using ANSYS software static performance analysis, static analysis of finite element method to the complex structure of the spindle box, draw a box structure under the force load and temperature load stiffness theoretical values, emphasizing the factors affecting temperature deformation, provides a basis to improve and control the strength and stiffness of the spindle box, as well as box optimization design of the design constraints.
Define the element type and material properties In ANSYS analysis unit for low-level unit, in order to improve the quality of the unit, to improve the calculation accuracy and can control the density of the mesh, thus reducing the size of the calculation to improve the computational speed.
Table 1 Parameters of materials (unit: N/m/Kg/k) Poisson's ratio Modulus of elasticity E Density Specific heat C Coefficient of thermal expansion Thermal conductivity 0.27 1.3×1011 7340 520 10.5 50 Impose constraints on the load and Solving Boundary conditions, constraints and load constraint is to control the degree of freedom of the element nodes, the determination of the constraint boundary is the prerequisite and basis of the finite element analysis, the same constraints as the working conditions in order to accurately reflect the analysis of the mechanical properties of the object.
Mechanical Design Handbook shows that the wall thickness of the box and Ligament thickness and layout is an important factor affecting the cabinet stiffness analysis, using continuous stiffener can significantly increase the tensional stiffness of discontinuous edge stiffener tensional rigidity little effect.
The precise effect of the stiffness factors on spindle box appropriate optimization and improvement, to improve the overall stiffness values to meet the Geometric accuracy of machines, positioning accuracy and precision of displacement, the further improvement of the model provides a reliable data.

There are multiple primary factors that contribute to the increasing interest in fibre-reinforced polymer composites, or NFRPCs.
To close this information gap, the current study focuses on how different fibre contents affect several mechanical properties.
Predictive Modelling of Mechanical Properties.
Statistical Analysis of Mechanical Properties.
Nain, A review on mechanical properties of coir-based composites, Mater.

Fatigue damage mechanism and main factors that affect fatigue strength of welded structures are analysis and summarized respectively.
This paper emphasizes on introducing the research progress of various measures to improve the fatigue properties of welded structures presently.
Major Factors Affect the Fatigue Strength Fusion welding is widely used in the manufacture of welded structures, filler metal is usually need, excess weld metal, pit and various weld defects are left at the joints.
Several the following factors that affect the fatigue strength of welded joints and structures will be expounded.
In addition, mechanical property of materials has some effect on crack propagation rate, but not great.

The mixtures were evaluated to determine several key responses that affect the fresh properties of precast, prestressed concrete, including filling ability, passing ability, filling capacity, surface settlement, and column segregation.
Five key mixture parameters were selected to derive statistical models to evaluate key properties of SCC.
All factors are expressed in terms of coded values.
The models are expressed as the factors with the highest influence on the modeled responses list by descending order.
J., Khayat, K.H., "Statistical Models to Predict Mechanical and Visco-Elastic Properties of SCC", Proceedings, 2nd International Symposium on Design, Performance and Use of Self-Consolidating Concrete, Beijing, China, June 5-7, 2009, pp 506-525