Search results

Introduction Ti3Al based intermetallic alloys have the advantages of both superior high temperature properties and low density, which are highly attractive for aerospace and aircraft applications [1].
Table 4 Schmid factors calculated for the β phase Table 5 Schmid factors calculated for the α2 phase The main slip systems in the DO19 α2 phase include mainly type dislocation acting on (i) prismatic }0110{ , (ii) basal { 0001}, and (iii) pyramidal }1110{ planes.
It could be seen that the Schmid factors in the major textures in the 0o specimen are zero.
After the α2 grains rotate into the {0001} orientation, the Schmid factors increase.
(4) The Schmid factors for the 45 o specimens are the highest in the α2 and β phases.

But there are some unstable factors and self-compensations in this structure.
It was found that there are some unstable factors and self-compensations for Ag doped ZnO.
The incorporation of impurities can cause significant changes in the electronic structures of doped ZnO, which may affect its geometric structures and optical or magnetic properties strongly.
These factors increase the difficulty in creating holes in ZnO and can be viewed as a kind of self-compensation.
Optical properties of ZnO codoped with Ag and F.

The Construction of the RBF Neural Network Prediction Model on the Cylinder Liner The determination of the input factors.
Although there are more factors affecting laser surface hardening index in the establishment of the RBF network model, the main impact factors should be used as the parameters of the input layer of RBF network.
Through the analysis, the output factors of the prediction model are the surface hardness (HV) and the hardened depth H (mm) after laser surface hardening of HT150 cylinder liner, and the input factors of the artificial neural network prediction model of laser surface hardening index on the cylinder liner are laser power P, scanning speed V and diameter D.
The neuronal number in the hidden layer is an important factor affecting the performance of RBF network.
Convergence Properties of Radial basis Function.

The results show that the main factors are the specific permeability of SiC performs and the temperature of molten aluminum alloy.
This excellent combination of properties makes composites very attractive for industrial application.
In terms of properties there is no much difference.
Summary (1) The temperature of the melt and specific permeability of the perform are the main factors affecting the threshold pressure
John: Aluminum: Properties and Physical Metallurgy (The American Society for Metals, USA 1984)

In fact, the non-geometric part was main factors to influence surface roughness, Chinese scholars Wang yusu [7] summed up into four parts when analyzed non-geometric factors: The tool factors, work-piece material factors, cutting parameters factors and processing factors, all these factors in turn contain key consideration parameters [8].
The cutting parameters factors mainly include cutting dosage and line spacing.
When considering the impact of the non-geometric part, such as tool factors, work-piece material factors, cutting parameters factors, thermal coupling in cutting process, plastic deformation and elastic recoil, the main factors were considered and secondary factors were ignored, here the mainly factor to consider the machined surface residual height and the elastic-plastic deformation factor in work-piece cutting layer.
Based on the molecular- mechanical friction theory, made the following assumptions: the tool was rigid body, wear in the cutting process was ignored, from the work-piece’s material properties, according to the elastic-plastic deformation theory of machined surface, got the height difference of the plastic flow of machined surface, thereby a simplified model as shown in Figure 4 was established elastic-plastic deformation of work-piece surface.
Mechanical Engineer.10(2004) 3-6

However due to several factors such as corrosion, material and design defects, mechanical failure is unavoidable.
This expression is derived as functions bar geometry, loading and material properties as follows (7) where J = Je + Jp, and F*I = FI,a + fFI,b.
It is also affected by the crack aspect ratio and relative crack depth.
Ghazali, Stress intensity factors for surface cracks in round bar under single and combined loadings, Meccanica, 47 (2012) 1141-1156
Ghazali, Stress intensity factors under combined tension and torsion loadings, Indian J. of Engineering and Material Sciences, 19 (2012) 5-16

Although the gelatin has these advantages, but porous scaffolds have good mechanical properties, closer to the native cartilage tissue, so it is widely adopted.
The factors which used to regulating chondrogenesis include TGF superfamily, insulin-like growth factor and fibroblast growth factor (FcF).
A variety of factors can transfer and promote multiple stages of cell differentiation and tissue formation at the same time.
But the mechanical properties of collagen is low strength, and it lack of strength and toughness.
Stress distributions and material properties determined in articular cartilage from MRI-based finite strains.

Through analysis, it was pointed out that the key factor affecting the polishing quality of this system is the stability of the system.
Based on the property of MRF, a MRT was designed in this paper to provide stable and controllable torque for the compliant polishing tool system.
In a certain polishing process, as the coefficient K is a constant and the relative polishing velocity can be controlled by the DC motor, the polishing pressure becomes the most important factor affecting the polishing quality, and thus, a stable and controllable polishing pressure is certainly required.
In the process, the material properties of each component, appropriate constraints, loadings, and kinematic pairs were defined, and suitable solver was selected for the simulation of the virtual prototype.
Cui: Chinese Mechanical Engineering, Vol.20 (2009) No.5, pp.518-521.

However, controlling the microstructure during the WAAM process is critical, as the mechanical properties of the final component are influenced by factors such as thermal history, cooling rates, and layer sequencing.
Variations in process parameters can result in differences in microstructure, which in turn affect properties like hardness, strength, ductility, and fatigue performance.
Several studies have investigated the mechanical properties of WAAM-produced carbon steel.
Mechanical properties.
Microstructure and mechanical properties of specimens produced using the wire-arc additive manufacturing process.

The main reasons for their widespread use are the provision of high rates of adhesion, mechanical and electrical insulation properties, moisture resistance and heat resistance.
Modification of the structure is associated with the formation of supramolecular formations, whose morphological characteristics depend on the conditions of structure formation and can be varied within wide enough limits, which affects the mechanical properties of polymers.
In this regard, the importance of scientific and practical importance is the study of the processes of structure formation and the study of the influence of heat treatment on the physical and mechanical properties of polymers, taking into account the scale factor [7].
Structuring large epoxy polymer products may cause structural defects that result from insufficient chemical bonding and result in a polymer with low mechanical properties.
Fang, 2018, Investigation on the mechanical properties of epoxy resin with void defects using digital image correlation and image-based finite element method, Polymer Testing 72: 223-231