Search results

Tensile Properties of Linear Low Density Polyethylene / Rambutan Peels (Nephelium chryseum Blum.)
PE is easily available, excellent mechanical properties, chemical and biological inertness, low cost, easily processable and high energy effectiveness [4-5].
Fiber – matrix interfacial adhesion is the factor that affects the mechanical properties of the fiber – reinforced materials.
There are some several factors to determine the interfacial bonding such as the fiber aspect ratio, the nature of fiber and polymer components and the treatment of the polymer of the fiber [22-23].
It can be related to many factors such as incompatibility between matrix and fibers, improper manufacturing processes, fiber degradation and others.

The aim of the optimization was to determine the setting of the sintering process parameter levels that would allow to obtain the maximum values of the analyzed mechanical properties.
Description of the analyzed factors levels is presented in Table 2.
Rashed, ANOVA Modeling on Sintering Parameters and Frequencies, Affecting Microstructure and Dielectric Constant of Nb Doped BaTiO3, Procedia Engineering 90 (2014) 72-77
Khanduja, Analysis of powder metallurgy process parameters for mechanical properties of sintered Fe–Cr–Mo alloy steel, Materials and Manufacturing Processes, 32 (5) (2017) 537-541
Matusiewicz, Comparison of mechanical properties of Mn-Cr-Mo steels sintered in different conditions, Solid State Phenomena, 197 (2013) 33-40

After the development, the methodology has been applied and verified by a reference part which includes the basic features and properties of the clutch housing.
It turned out that the most important factors which influence the flatness of these milled interfaces are the forces and thermal expansion during the milling process as well as the position of the clamping points.
In a second step these process factors are used to calculate the part deformation during machining.
This analysis indicates if the process engineer should consider the dynamic properties of the system consisting of the workpiece and the clamping system.
For this reason the Eigenfrequency analysis will be conducted to evaluate the dynamic properties of the clamping system and the workpiece.

The properties studied in the geopolymers were their compressive strength and acid attack resistance.
The activation of an aluminosilicate source in the presence of calcium depends on several factors, such as elemental composition, mineralogy and physical properties of the aluminosilicate, calcium source, nature of soluble alkali metal and curing conditions [1-3].
Williams, Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes, J.
Ecklund, Factors affecting the suitability of fly ash as source material for geopolymers, Fuel 89 (2010) 992–996
Chaudhary, Mechanism of geopolymerization and factors influencing its development: a review, J.

These factors can have serious consequences on the safety, cost, and operational capability.
Empirically designed and assembled, the MFC is poorly understood, especially in terms of its underlying operating principles, its dependence on design parameters and its electrical properties [3].
The aim was to monitor the changes in the electrical properties and voltage responses of the sensor to detect any degradation in the structure or sensor.
Furthermore, the mechanical and electrical properties of MFC materials could be gradually degraded over their service lives [4].
[2] Inman, D and Ruggiero, D., "Composite Materials with Embedded Sensing," Center for Intelligent Material Systems and Structures Department of Mechanical Engineering Virginia Tech, USA, (2007) [3] Lloyd, J, "Electrical Properties of Macro-Fiber Composite Actuators and Sensors," Master Thesis, Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, (2004)

In addition, because of own characteristics of rubber material, differences also exist in sizing properties.
Actually, random is shown in the aspect of tire structure and rubber material properties of each tire, which affects radial tires in properties and reliability.
It is an effective numerical analysis method to analyze various structure problems, affected by random factors.
According to it, the main factors, which affect objective function, can be determined.
（a）turn-up height （b）Material Properties of TVE （c）Material Properties of TVPA Fig. 5 Influence of random variables to reliability Fig. 6 Relationships between response SENER and the Reliability.

Real composite components are usually affected by the presence of a large number of voids and defects, which cannot be reproduced in numerical models; this leads to a variability of the mechanical properties of materials, with particular reference to elastic moduli and density.
An increasing in the damage detection capability could improve significantly the design philosophy, resulting in lower safety factors.
Their presence enlarges the variability range of the materials mechanical properties, with reference special focus on elastic moduli and density.
Material properties.
In this paper a DoE analysis has been carried out to understand the effects of the variability affecting the composite material properties on the propagation mechanisms of guided waves.

For instance, element M can be represented as М ϵ ({m1}, {m2}, …{mn}) where {m1} is the subset describing chemical composition, {m2} is the subset describing the mechanical, processing and other properties of the process material, etc.
The analysis of forging methods showed that weight of the non-controllable factors and factors controllable by adjustment increased progressively from cold forging to hot forging.
However, weight of the factors controlled preventively decreased from cold forging to hot forging.
Cold forging provides a higher forging accuracy and smaller percent of non-controllable factors.
The variability of process factors causes the deformation force to change.

The influencing factors of crawling (1) Crawling is associated with the properties of friction.
Among the mechanical transmission system, the stiffness of the whole system will be affected because of deformations of any transmission part, especially the last set of transmission part.
The main measures to avoid crawling All the influencing factors of crawling, the two main factors [5] are the difference between the static and dynamic friction of the moving parts and rigidity of transmission system.
It is often caused by passive components and the properties of friction from the surface of guide rail which guides the movement of passive components.
Electro-Mechanical Engineering, 2008(6)

Volume fraction of SiC can be effectively improved by using binary mixture particles with the diameter ratio of 11:1, through which the properties of substrate can be controlled effctively.
Meanwhile, density, structure, dimension change of the composites were discussed, and the effect of SiC content to on the mechanical and thermal properties of the composites were analysed.
Results and discussion 2.1 Relative density of SiCp/ZL101 composites substrate Relative density, as well as the content of SiC particles of composites , affect mainly various properties of the composites.
In this study the diameter of the double particles are respectively 220μm and 20μm, the ratio of which is 11 higher than critical value, therefore can effectively increase the volume fraction. 2.2 Dimension change of SiCp/ZL101 composites substrate Some researches[13] have shown that the dimensional accuracy of SiC performs is the vital factor for near-net-shape of composites, and affecting the dimensional accuracy of SiC performs have many factors, such as sintering temperature, content of porous-forming agent , so in this experiment these factors were taken into account, and dimension change for SiC performs before and after sintering and after infiltration of Al liquid were compared, and the results are given in table 2 below.
It can be seen above that affecting the size change of near-net-shape of SiCp/ZL101 composite substrate is the fabrication process of SiCp preforms, which can be controlled precisely by designing appropriate mould and establishing the sintering process. 2.3 Properties of SiCp/ZL101composites substrate Fig.6 Variation of bending strength and elastic modulus of composites with different volume fraction of SiC.