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The selection process must take into account many factors such as shape and dimensions, the availability of technology, economic consideration, manufacturability, and environmental impact of the materials [2].
The plastic properties will be affected by the use of recycled material in production process which mixed with the virgin material.
Research [14] conducted experiments to determine the effect of recycling on material properties of plastic at various recycling ratios and generations.
The research concluded that the recycled material was a good material and recycling ratios and generations affect the material properties.
Rios: Effect of Recycling on Material Properties of Polyethylene Terephthalate at Various Recycling Ratios and Recycling Generations, Mechanical Engineering, University of Puerto Rico, Mayagüez Campus (2003).

Carbon fibre-Organoclay Hybrid Epoxy Composites: Fracture Behaviours and Mechanical Properties Jang-Kyo Kim 1, a , Naveed A Siddiqui1, 3, b, Ricky S.C.
The fracture resistance and mechanical properties of carbon fiber reinforced composites (CFRPs) containing organoclay-filled epoxy resin are studied.
The low fibre volume fraction of about 20% used in this study further supported the relatively high sensitivity of the mechanical properties of composites on the matrix properties.
Clay content (wt%) Flexural Strength (MPa) Flexural Modulus (GPa 0 363.0±21.3 17.2±0.7 3 345.4±21.4 17.5±1.1 5 323.9±43.8 18.1±1.1 7 344.7±19.4 18.9±1.4 In addition to the direct influence of matrix properties, the carbon fibre-matrix interfacial properties are another important factor that is adversely affected by the presence of organoclay in the matrix.
The presence of nanoparticles was seen as having a negative effect on composite mechanical properties through premature interfacial debonding.

Higher content of silica in geopolymer coating resulted in better thermal properties.
Both researchers claimed that factors such as high ratio of Si/Al and low water content resulted in better thermal properties.
The objective of this study was to screen and identify the significant factors that mostly influence the fire retardant properties of geopolymer coating based on RHA.
In addition, fire performance and material characteristic was studied to help in understanding the impact of each factor on the material properties.
Synthesis factors affecting mechanical properties, microstructure, and chemical composition of red mud–fly ash based geopolymers," Fuel, vol. 134, pp. 315-325, 2014.

Such effects are changing the electrical as well as the mechanical properties which will in detail be a subject of future work.
In general, the influence of the mechanical properties on the resonance behavior is mainly depending on the Young’s modulus of the respective layer as well as preloaded strain [7].
A change in one of these parameters directly affects the quality factor and thus the sensitivity of the sensor [8].
The observed change of the Sc2p binding energies with respect to N1s is directly affecting the Young’s modulus [7] and hence the lattice phonons.
Bechstedt, Properties of strained wurtzite GaN and AlN: Ab initio studies, Phys.

However, these properties also make them difficult to machine into a precise size and shape.
The materials properties are shown in Table 1.
In the present research, Smaller-the-Better (Eq. 1) type situation has been selected for Fz since smaller cutting force reduces the heat affected zone and at the same time maintains the mechanical properties and chemical composition of the workpiece and increases the tool life.
The “Delta” value is higher for most significant factors and its value decreases for less significant factors.
It means that all the factors affecting the Fz and MRR have been considered in the predictive models.

As the characteristics of the interface are of central importance, there is a great incentive for an improved understanding of the nature of interfaces between constituents in such composite systems and of the factors that affect their mechanical characteristics.
In this volume, various aspects of the structure and mechanical behaviour of interfaces in composite systems are covered in a systematic manner.

The results obtained indicate significant changes in the physical and mechanical parameters of spherical balls under the influence of various factors and the environment.
The obtained dependences of scalar products show that the physical and mechanical parameters of spherical balls can change significantly under the influence of various factors and the environment.
Huliieva, Prediction of the structural properties of powder materials by 3D modeling methods.
Ruban, Investigation of the properties of powder materials using computer modeling.
Schutyser, Particle morphology and powder properties during spray drying of maltodextrin and whey protein mixtures.

Throughout the service life of asphalt mixtures, various internal and external factors contribute towards the deterioration of pavement integrity.
Traffic load is known to be one of the main factors affecting pavement layers which then result in fatigue and permanent deformations of the upper layer of pavements [3-5].
The mechanical properties of the asphalt mixtures was investigated using the resilient modulus, dynamic creep, and moisture susceptibility tests. 2.
The results of the One-way ANOVA analysis presented in Table 4 indicate that the percentage of CaCO3 is the most significant factor affecting the performance properties, with the addition of higher amount of modifier having more significant effects on other performance of the modified asphalt binder.
Evaluation of mechanical properties of nano-clay modified asphalt mixtures.

Different SiC volume fractions, processing temperature and stirring time have different influence on tensile strength and elongation of SiC; but how to find out the satisfied treating parameters is an unavoidable question, a hybrid method is put out and experiments prove the effectiveness of research work. 0 Introduction SiC particle reinforced magnesium matrix composites have been widely applied in automobile industry, mechanical engineering and other industries because of their excellent properties such as low density, high strength-to-weight ratio, excellent casting capability, good machinability and damping characteristics[1-4].
Model between performance and affecting factors is constructed with artificial neural network (ANN).
The construction of testing equipments is represented in figure 2. 1 thermocouple 2 heating resistance wire 3 crucible 4 intelligent temperature controller 5 resistance furnace 6 stirring blades 7 vacuum tank 8 pressure testing meter 9 sucking pipette 10 vacuum pump 11 windpipe 12 speed-variable motor 13 stirring pole Fig. 2 Schematic diagram of stir casting of SiCP/AZ61 composites 2.2 Experiments design The composites mechanical performance is affected by many factors, such as SiC volume fractions, processing temperature and stirring time, so the orthogonal experiment design is adopted, there are three factors and each factor has three levels, corresponding results are shown as table 1.
Vol. 22A (1991), p. 957-981 [4] Hu Lianxi,Wang Erde, “Fabrication and mechanical properties of SiCw/ZK51A magnesium matrix composite by two-step squeeze casting,” Materials Science and Engineering, Vol.
Zhang, “Research on Properties of SiCP/AZ61 Magnesium Matrix Composites in Fabrication Processes,” Materials Science Forum, Vol.561 (2007), p.945-948 [9] Wei Haikun: Theory and Method of Neural Network Structure, Beijing: Defense Industry Press, 2005

The interfacial mechanical characteristics in anchorage zone of grouted bolts influence the ultimate capacity of bolts directly; a push-out test was carried out at the lab to study the interfacial mechanical characteristics in the case of bond failure happening at the grout-rock interface, leaned from some scholars to test methods for analysis of concrete microstructure instead of rocks.
Until the mid-1950s, people began to theoretical study of the mechanical mechanism of the anchoring technique, the direction of the study is mainly focused on the bolt mechanical transfer mechanism and the effect on the surrounding rock, the aim of the study is to improve the anchoring of the ultimate bearing capacity, to optimize the anchor design.
Early as 1967, Luta L and Gergeley.M [2] launched a study on the sliding nature of Reinforcing Steel in Concrete, Hanson [3] and Goto [4] thought that the anchor surface shape of the anchoring force plays a vital role, Rong Guan and Zhu Huan-chun et al conducted a comparison test of rebar and round bar mechanism, these studies show, the anchor rod surface shape and the intensity of the main factors affecting the anchorage force.
Obviously, until the currently most studies focus on the bolt - mortar interface properties of, but studies have shown that many cases occur mortar - rock interface failure [5, 6], especially in the pressure bolt prone to such failure modes.
Relationship between microstructure and mechanical properties of the paste-aggregate interface [J].