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Machining of metals make use of thermal-mechanical FEM model.
Therefore, constitutive model that could true reflect various factors on influence of stress and strain of the processing materials is the basis of ensuring precise results of finite element simulation of cutting process.
Johnson-Cook model is a constitutive Model with good properties, which is used to describe under the condition of the large deformation, high strain rate effect and temperature, especially the model is widely used in the transient and dynamic simulation.
The result is that tool wear and workpiece machining accuracy will be the large affected by cutting heat generated.
Ai: China Mechanical Engineering, VoL.18 (2007) No.6, pp. 746-751.

Li Yonghong for EPS silt mixed lightweight formula and its physical and mechanical properties of soil has carried on the preliminary discussion, studies have shown that the strength of the main influencing factors of cement content, foam particles adding amount, and the pattern of the deformation and failure of the specimen and EPS content mainly about.Cement mixing ratio and EPS content and age were studied on its permeability characteristics, and set up the experience formula of the permeability coefficient and consolidation pressure by Zhu Yunhua.
Jiang jian, zhang min and luo comrades explored by orthogonal test of lightweight soil physical and mechanical index analysis of the main factors influencing on lightweight soil cement content and water content on the unconfined compressive strength of the relationship between the parameters of the regression analysis.
Throughout the lightweight soil, especially the project involved in the research status of EPS silt mixing light-weight soil as you can see, the current domestic and foreign research focused on the formula ratio and macro physical and mechanical properties of the research, and the microstructure characteristics of poorly understood.
So to carry out the EPS of silt mixing light-weight soil microstructure changes of research, to explore the mechanism of deformation and deformation law, establish its microscopic structure and the relationship between the macroscopic deformation properties is essential.
The final purpose of study is for EPS silt mixed lightweight soil engineering application provides reasonable geotechnical parameters, for the selection, preparation has a clear service engineering properties of EPS silt mixing light-weight soil, can be widely applied to facilitate the green technology.

Generally, welding quality is affected by two sets of parameters including welding design and welding process parameters [5].
Because of high impact of heat transfer on weld geometry and molten pool thermal properties, automatic control of the variables is very important.
These properties are the integration of many interdependent aspects of the process, thus making GMA welding a fully coupled, highly non-linear multivariable process [10] .
In similar studies, Ates [19] and Al-Faruk et al [20] used MLP with two hidden layers for prediction of some mechanical properties of the GMA welding.
Strojniški vestnik - Journal of Mechanical Engineering, 2011. 57(3): p. 267-278

Magnetic properties of Y3Fe5O12 magnetic feeders illustrates that Y3Fe5O12 has high Initial permeability (58.054), high Q-factor (59.842) and low loss factor (0.0003) at sintering temperature of 1150°C.
Magnetic properties such as initial permeability, relative loss factor, saturation magnetization and remanence etc depend on the crystal structure and morphology of the garnet materials [7].
Zhang, Structure and magnetic properties of SnFe2O4 nanoparticles, Phys.
Bhattacharya, Size-dependent magnetic properties of nanocrystalline yttrium iron garnet powders, J.
Pascard, The electromagnetic properties of Cu-substituted garnets with low sintering temperature, J.

The weights of evaluation factors in the model are obtained from the avail value of data reflecting the information entropy, by which the weight allocation is more reasonable.
These properties have a fuzzy feature [5].
However, a diversified water resource itself is a complex system, affecting the physical capacity evaluation of chemical and biological factors of the many with a lot of uncertainty and ambiguity, between the level of assessment factors and bearing capacity of the complex nonlinear relationship exists, so far water resources carrying capacity is still no uniform evaluation model.
Conclusion Water resource assessment is a systematic project, which requires a number of indicators of the properties of integrated, water resource evaluation of the impact of the many factors that have a lot of uncertainty, and water resource evaluation factors and level of the complex between the non-linear relationships and status of water resources carrying capacity also has the characteristics of dynamic change, making the carrying capacity of water resources has become very complex.
Beijing: Mechanical Industry Press, 2001.

The paper uses the finite element method to simulation welding heating and cooling of bolted-welded connections impact on the bolt pretension and analyze node capacity to be affected to provide a theoretical basis for the optimal design of the node.
Ciro Faella etc. analyzed the test and summarized the influencing factors of high-strength bolts pre-tension in Italy[1].
Song Ming etc. used orthogonal experiment to study pre-tension loss of high-strength bolts of steel structures from four aspects of the time after the final screw, bolt diameter, plate thickness and ambient temperature and studies suggest that the final time has biggest affect on the pre-tension loss [3].
Simplify the bolt connecting not considering the material property difference of the bolt head, washer and bolt rod.
Finite element analysis on temperature mechanical properties of high strength bolt connection [D]. ​​

The equations suggested in this study are a function of material and cross-sectional properties.
Table 1 shows a material properties used in this study [1].
However, C2, C3 are still unknowns and must be found with respect to the mechanical properties of the material and the boundary conditions at the unloaded edges of plate.
Therefore, the general form of equation, such as Eq. 3, needs to be suggested including the factor affecting the restraining effect such as a width ratio for the case of FRP structural shapes.
Conclusions In this study, buckling analysis of isolated plate component of pultruded structural member was conducted for various mechanical properties of the material using the closed-form and energy method solutions.

In a lot of factors, thermal deformation of motorized high-speed spindle is a key factor affecting the manufacturing accuracy of machine tool.
In order to reduce the thermal errors, the reasons and influence factors are analyzed.
Introduction With the increasing demand for the performance of CNC machine, many researchers are focusing on the property of each functional component.
Cause and Influence factor of the Thermal Error.
Fig.3 prediction results and curve fitting errors Summary In this paper, the causes of creation and influence factors of thermal error are analyzed.

These properties make titanium and titanium alloys attractive for many industrial applications.
The carbon is additive which exists in all titanium alloys with improved properties.
Collins, Materials Properties Handbook: Titanium Alloys, ASM International, USA, 1994
Chen et al, Effect of carbon additions on the microstructure and mechanical properties of Ti-15-3, Jo. of Mat.
Wu, Effect of carbon on microstructure and mechanical properties of an eutectoid β titanium alloy, Jo. of Mat.

On the basis of unloading rock mass theory, we identify the excavated rock mass parameters by means of neural network training in each step, in which the subjective factors of the parameters selected process have largely been decreased.
Literature [8] uses BP-ANN to simulate the relationship between rock mass displacements and rock mechanical parameters, and additionally, optimize the initial input weights of BP-ANN model by genetic algorithm because they strongly affect the accuracy of neural network.
Mechanical Parameters.
Mechanical Parameters.
Fig.4 Displacement comparison of Mcf0+000-8 Conclusion On the basis of unloading rock mass theory, referring to the two-and three dimensional finite calculations, the inversion analysis process has the following properties: (1) Considering the slope displacements as the final outputs, the deformation parameters are picked up for the main variables which can be adjusted according to the engineering situation