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Effects of La2O3 on the Piezoelectric Properties of Lead-Free (Bi0.5Na0.5)0.94Ba0.06TiO3 Piezoelectric Ceramics� � Y.
BNBT with a rhombohedral-tetragonal morphotropic phase boundary (MPB) composition (i.e., Bi0.5Na0.5TiO3 +6mol% BaTiO3) have been reported to show fair piezoelectric properties for a high frequency ultrasonic application because of a lower relative permittivity [K33 T ], a relatively high electromechanical coupling factor [k33], and a high frequency constant [Np � 3000Hz�m] as well as good mechanical properties [6].
Fig. 4(b) shows electromechanical coupling factor (kp) and mechanical quality factor (Qm) as a function of La2O3 content in BNBT system.
Mechanical quality factor was shown to reduce considerably with increasing La2O3 content.
On the other hand, the mechanical quality factor was abruptly decreased with increasing La2O3 content.

Very high cooling rates (even 10^8 K/s), the cooling differences and the thermal conductivity in different directions are the most important factors that influence the formation of a very fine cellular structure [21, 22].
It is apparent that there is no anisotropy of mechanical properties in the volume of material.
Thijs, et al., Microstructure and mechanical properties of selective laser melted 18Ni-300 steel, Phys.
Ding, et al., Microstructural evolution and mechanical properties of maraging steel produced by wire + arc additive manufacture process, Mater.
Wang, Effect of heat treatment on the microstructure and mechanical properties of maraging steel by selective laser melting.

Aspect ratio of crack is one of key factors of fatigue strength prediction in engineering design and civil structures using fracture mechanics.
Introduction While it is very important to detect crack size and shape in civil engineering, it is hard to measure their precise shapes and/or mechanical factors.
Using their geometry approximations, we can evaluate various properties of fatigue phenomena.
Keer, ‘Stress intensity factors for cracks of arbitrary shape near an interfacial boundary’, Engineering Fracture Mechanics, 1987, 21, (1), 27-41
Takase, ‘Stress concentration factors for round and flat test specimens with notches’, International Journal of Fatigue, 1995, 17, (3), 163-178.

With help of multi material design, car manufacturers want to ensure that the appropriate materials with their specific mechanical properties are used in the right place as well as quantity and thus to achieve the aim of weight reduction of the structure [4].
Before answering these questions in relation to clinched structures it is firstly and foremost important to examine the properties of the base material from the fracture mechanical point of view.
For the determination of the fracture mechanical properties of the base material several preparatory investigations are essential.
In accordance to the standard ASTM E 647 for the determination of fracture mechanical properties in consideration of cyclic loading situations a compact tension (CT) specimen can be utilized [12].
Besides, the tests with different rolling directions 0° and 90° illustrate that the rolling direction has no significant influence on the fracture mechanical properties.

The heat affected zone formed during fusion process typically has different properties from the base material.
This is to eliminate any surface features that might skew the data due to geometry factors.
Mechanical Properties.
These results indicate that the lack of fusion defect greatly affects mechanical properties.
The lack of fusion defects greatly affect the mechanical properties of HDPE piping thermal fusion welds.

Among various factors, shear modulus of sand is a variable affecting penetration depth.
The shear modulus of sand affects the penetration depth.
The sand property was selected from ANSYS Explicit Material Data.
Among many factors which affect operation of a test site, shear modulus is also an important factor in economical collection of cannonballs.
International Journal of Mechanical Sciences Vol.22(5) (1980), p.297-311 [4] J.

SiO2) to increase mechanical and durability properties, Nano Titanium Oxide (n.
Graphene compactness reduces the water permeability without affecting its breathability due to an excellent vapor permeability.
Study of mechanical properties and early-stage deformation properties of graphene-modified cement-based materials.
Hydrogen bond networks in graphene oxide composite paper: structure and mechanical properties.
Membrane fouling in algal separation processes: a review of influencing factors and mechanisms.

In this study, mechanical properties and fracture toughness of a Zr-based BMG alloy containing ductile crystalline particles dispersed in a BMG matrix were measured, and fracture mechanisms were examined by direct observation of fracture processes.
Compressive Properties.
Compressive properties of the LM1 alloy and LM2 alloy are shown in Table 1.
Summary The present study confirms enhanced fracture properties of the LM2 alloy over the LM1 alloy according to the R-curve behavior, although the measured apparent fracture toughness of the LM2 alloy is lower than that of the LM1 alloy.
If the size, shape, and volume fraction of crystalline particles can be optimized by controlling casting parameters, mechanical properties of the LM2 alloy are expected to further improve.

The influence of tire performance that due to tread rubber properties’ changes is discussed below.
Actually, the tread rubber has a great impact on the overall performance of the tire, a lot of factors are coupled, for example, affect the rolling resistance also affects the wear resistance, and so it is unreasonable to analysis unique property [12-14].
Conclusions Based on the material of the tire tread rubber oil resistance test, that the rubber material has occurred swelling phenomenon, the internal microscopic structure and Mechanical properties are changed, all the basic physical properties of the rubber material has declined, resulting in deterioration of the durability of the tire, wear resistance, maneuverability, rolling resistance and other performance.
Experimental investigations on the dynamic mechanical properties of aged rubbers [J].
Special fluorine rubber oil medium aging properties.

Weld quality depends on welding type, welding parameters (currents, voltage and its travel speed) and the mechanical properties of the weld metal and heat affected zone (HAZ), which in turn is influenced by the metallurgical characteristics and chemical compositions of the weld [2].
Welding process parameters such as welding speed, welding current, shielding gas flow rate and gap distance plays an important role in determining the mechanical properties of the weld, such as tensile load [4].
Fig. 7 Microstructure (HAZ) Specimen 1, 3 and 7 Conclusion The results obtained for tensile strength and hardness shows that different levels of ampere, voltage and travel speed in the welding process affect the maximum and minimum values of the weld properties.
"Effect of welding variables on mechanical properties of low carbon steel welded joint."
"Effect of Arc Welding Current on the Mechanical Properties of A36 Carbon Steel Weld Joints."