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All of these factors have been experimentally examined for laminar composites containing thin, compressive layers.
Factors that affect the threshold strength are reviewed.
Laminates formed at elevated temperatures with two or more materials develop stresses during cooling due to different thermal-elastic properties.
It will be assumed that both materials have identical elastic properties and identical critical strain energy release rates, Gc.
The above analysis assumes identical elastic properties and identical fracture energy for both materials.

Interactions between the matrix and the filler particles may be of varying strength, and it has an effect on the rheological and mechanical properties of the composite [1].
The combination of the magnetic properties of the filler and the elastic properties of the polymer matrix in magneto-elastics gives rise to a number of unique properties.
Since the magneto-elastics are composite materials, their mechanical behavior defined by a combination of elastic properties of the polymer matrix and the properties of the magnetic particles distributed within the matrix [3].
The research results ability of the polymer to maintain strength and plastic properties after swelling in aggressive liquids in a relaxed state to change one or more physical and mechanical properties are displayed in Fig. 1.
[11] Huang Yanmin, Liu Lan, Chen Juanjuan, Mechanical and thermal properties of FPM/PHACM/ACM blends, Journal of elastomers and plastics. 44 (2012) 533-548

S.Srikiran1, K.Ramji2, B.Satyanarayana3 1 Research Scholar, Dept. of Mechanical Engineering, A.U.
Professor, Dept. of Mechanical Engineering, A.U.
The study of lubrication properties of Graphite are carried out over the past several decades.
The increase in the forces when the size of the particles is decreased in the nano level attributes to the conceptual model developed by Ramana et al [14] which talks about the agglomeration of particles at the chip – tool interface leading to the properties of sticking and interlocking of the solid lubricant particles.
Conclusion The investigation of this study indicates that the process parameters feed rate, cutting speed, depth of cut and size of the nano-level graphite powder are the primary influencing factors which affect the cutting forces, tool temperature and indicate the level of surface roughness obtained.

Effect of Sensitization Treatment on Corrosion Properties in Austenitic Stainless Steel 304 Chungseok Kim1,a, SeungJae Moon1,b and Wonsik Kong1,c 1Materials Science and Engineering, Chosun University, 309 Pilmun-daero Dong-gu Gwangju 61452, Rep. of Korea achs2865@chosun.ac.kr, bimdior@naver.com, cyazasu0422@naver.com Keywords: Stainless steel, Sensitization, Corrosion, AISI304, Solution Abstract.
Introduction Many structural alloys corrode merely from exposure to moisture in air, but the process can be strongly affected by exposure to certain substances.
Microstructural analyses were performed on samples prepared by mechanical polishing with emery papers and vibration polishing machine followed by chemical etching in reagents consisting of 80㎖ HCl + 13㎖ HF + 7㎖ HNO3 at 75°C for AISI304 stainless steel.
Grain boundary chemistry is known to be a critical factors impacting structural reliability of austenitic stainless steels [7,8].
The degree of sensitization is influenced by factors such as the steel chemical composition, grain size, degree of stain or temperature and time of annealing [9].The sensitization involves both nucleation and growth of intermetallic phases (Cr23C6) at the grain boundaries.

Hence, an undefined material flow inside the welding chamber induces reinforcement deflection, which can lead to reduced mechanical properties, as momentum of inertia.
Namely, depending on the material flow conditions in the die, reinforcing elements are deflected horizontally and vertically in relation to the supply position, which yields a change in the mechanical properties like moment of inertia (Fig. 2).
The errors are affecting on the particle tracing results.
Schomäcker: Composite Extrusion - Determination of the Influencing Factors on the Positioning of the Reinforcing Elements, Advanced Materials Research: Flexible Manufacture of Lightweight Frame Structures, Vol.10, 2006, p.13-22 [9] G.

Study on the Viscosity and Dispersion Stability of AA-AMPS Copolymer on Nano Zinc Oxide Yue-Long LIU1,a,* and Jia LIU2,b 1School of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China; 2 Department of Mechanical and Electrical Engineering, Nanchang Institute of Technology, Nanchang330099, China alylgyx@163.com, b704604371@qq.com *Corresponding author Keywords: AA-AMPS copolymer; Radical polymerization; Viscosity; Dispersant.
These polyelectrolyte adsorption is highly dependent on the electrostatic interactions between the polyelectrolyte and the surface [3], hence, the surface chemistry of the solid phase and the solution properties of the polyelectrolyte are important parameters, regulated by the pH and the ionic strength.
Because the molecular structure of 2-acrylamido-2-methyl propane sulfonic acid (AMPS) [4] contains unsaturated double bonds, sulfonic acid groups and amide groups, which result in its beneficial properties, the unsaturated double bonds in AMPS make it easy to polymerize, the sulfonic acid groups can prevent the hydrophilic copolymer from reacting with ions in solution and also have a chelating effect, and the amide groups help AMPS to have a good hydrolytic and thermal stability.
H2O/g / ºC Initiator monomers (NH4)2S2O8/g NaHSO3/g ratio AA/g AMPS/g ratio 1 80 75 8 2.7 3:1 20 10 2:1 2 80 75 8 8 1:1 20 10 2:1 3 80 75 8 8 1:1 30 10 3:1 Many factors affect the polymerization process and properties of the final polymer AA-AMPS, such as the monomer mass ratio, reaction concentration, initiator dosage, pH, chain transfer agent, reaction time, stirring speed, the method of monomer addition and reaction temperature.

It affects the effectiveness of the orthodontists.
Lin et al. [4] analyzed the contribution of orthodontic mini screw design factors to optimize the design of orthodontic mini screw.
The material properties.
The material properties are set according to the reference [6] and [7], as shown in Table 2.
Lin: Evaluation of contribution of orthodontic mini screw design factors based on FE analysis and the Taguchi method, National Yang-Ming University, Taiwan, 2010

Vibration analysis of a Timoshenko beam with transverse open crack by Finite Element Method Alok Ranjan Biswal1,a *, Rabindra Kumar Behera2,b, and Tarapada Roy3,c 1Ph.D, Research scholar, Department of Mechanical Engineering, NIT, Rourkela 769008, INDIA 2Associate Prof., Department of Mechanical Engineering, NIT, Rourkela 769008, INDIA 3Asst Prof., Department of Mechanical Engineering, NIT, Rourkela 769008, INDIA a alokbiswal82@gmail.com,b rabi57@rediffmail.com,ctarapada@nitrkl.ac.in Key words:Timoshenko beam, cracked beam, finite element method.
So it is very much essential to know the property of structures and response of such structures in various cases.
It has been observed that the presence of crack in the beam, will affect the natural frequency.
Also the change of dynamic property will effect on stiffness and dynamic behavior.
(9) Where ‘L’ is the transformation matrix Result and discussion For numerical analysis the various geometric and physical properties of the beam are L=1m, D=2cm, E=206Gpa, ρ=7800Kg/m3&µ=0. 3.

The effect of rare earth and tantalum contents on the properties of GLC coating can be studied by adjusting the insert material and number.
Tab. 2 Factors and levels of test Levels Factors (number of insert) Yttrium Cerium Tantalum 1 2 2 1 2 4 4 2 3 6 6 3 In order to increase the reliability of statistics, a NULL column with three levels was designed to evaluate factor error and F value of variance analysis.
The tested factors were corrosion current density in sea water with 3.5wt% sodium chloride.
Effects of factors are show in Fig.2.
The tribological properties are essential to GLC coating, and some performances are showed as Fig.3.

Sun Jianyun[2] analyzed the dynamic response and mechanical properties of SRC columns under explosive shock loads by LS–DYNA and established a simplified model of the equivalent single degree of freedom for SRC columns.
Researching the dynamic response of the structure under blast loading, we can analyze the damage morphology and related factors, which have important reference value of the antiknock performance study of structures.
To reduce the amount of calculation but does not affect the outcome correctness.
Because concrete is the material of poor tensile properties and prone to brittle failure.
Conclusions Analysis dynamic response of column under blast loading is important that we can know its failure pattern and related factors which have important reference value to its antiknock performance.