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In addition to these factors in model experiment, influences of residual stresses on ultimate load-carrying capacity were analyzed by finite element numerical simulation analysis, the results show the residual stresses affect the ultimate load-carrying capacity of angles by about 5％ or less.
According tangent stiffness theory analyzed some factors (cross-section shape, material, residual stress, initial bending, initial eccentricity), LI Kaixi [2] drawn many stability coefficient curves.
The mechanical properties of the material in the angles were determined from tension tests.
The program adopted non-linear static analysis method and considered material nonlinearities and geometric nonlinear factors.
For these angles the residual stresses, which affect the ultimate load-carrying capacity of angles by about 5％ or less，can be neglected.

On the other hand, because prestressed cable offset arch thrust, it give full play to the advantage of arch structures and steel force Tensile properties of high strength cable.
In the premise of ensuring full performance of tensile properties of the bottom of cable the string structure use rigid component which have pressive and resisting bend strength.
The effects of parameters such as paper by adjusting the design parameters, analysis of above parameters chord-tension truss structure static properties.
The structure static properties of the prestressed variation.The calculated results and relation curves as shown.
Vertical span ratio is affects to truss string structure static performance which is one of the important factors, the calculation results shown as shown in figure 7.

As a result, a complex structure is formed in the welding or processing zone with division into the stirring zone, the thermomechanical affected zone and the thermal affected zone [7].
In the heat-affected zone, there are mainly processes due to the heating of the material around the welding zone.
In such a case, it is possible to determine which of the factors in the formation of the joint is decisive.
Andjelković, Mechanical behaviour of Al 2024 alloy welded by friction stir welding, IOP Conf.
Kolubaev, A review of friction stir processing of structural metallic materials: Process, properties, and methods, Metals, 10 (2020) 772

Vickers hardness can be used to evaluate the mechanical properties of the welding head, whose diamond indenter was adjusted at the angle of 136°.
During the welding process, the water absorbed in oxide film may produce blowhole, which can undermine the homogeneity of the metal and reduce the mechanical properties of the joints.
Aluminum alloy possesses the advantages of strong oxidizing capacity, high thermal conductivity and electrical conductivity, large line expansion coefficient and relatively low strength, etc, these factors may cause difficulties for welding.
Preparation and properties of Fe-based bulk metallic glass.China Building Materials Science and technology. 17 (2008) 68-71
Ko, Structure and Mechanical Properties of CP Ti and Ti-6Al-4V Alloy Brazed Joints with Ti-Base Amorphous Filler Metals, Quarterly Journal of the Japan Welding Society. 5 (1987) 21-27

Unfortunately, the unique physical and chemical properties that make these alloys suitable for many applications also result in the difficulty to cut or ground.
During grinding using the abrasive wheels, which has been one of the most popular processes for titanium alloys, short wheel life and severe surface abuse of ground workpiece are the important factors impairing their grindability.
It is well known that the surface roughness can significantly affect the mechanical strength of components when they are subjected to fatigue cycles.
Cross-section metallographic structure images of grinding surface are shown in Fig.6a, about 15µm heat affected zone can be observed on the cross-section of ground surface, however, due to the brought high grinding zone temperature by big grinding parameter, about 35µm, in Fig.6b.
Wallbank: Proceedings of the Institution of Mechanical Engineers, Vol. 204 (1990), pp.53-60

Improving Gearbox Design and Analysis for Offshore Wind Turbines Hui LONG1, 2, a, Jingze WU1 and Andrew FIRTH1 1School of Engineering and Computing Sciences, Durham University, United Kingdom 2State Key Laboratory of Mechanical Transmission, Chongqing University, China ahui.long@durham.ac.uk Keywords: wind turbine, gearbox, design load, fatigue damage Abstract.
Using the software tool, results for the AGMA geometry factors and are calculated and verified in accordance with the AGMA 908 data sheets.
The Analysis Dialog facilitates the analysis of individual gear stages and allows the user to alter some of the factors and design criteria (e.g. design life, manufacturing accuracy) which may affect the calculation results.
The programme contains the calculation functions based on the AGMA 2001 rating equations and updates the results whenever a change is made to the geometry, material properties or design criteria.
Acknowledgement The first author would like to acknowledge the support of Visiting Fellowship from the State Key Laboratory of Mechanical Transmission, Chongqing University, China.

In Table 1 are present the real values of technological factors and their coding.
Designation of coding factors and their ranges of value.
Factors' levels Ia, [A] Il, [А] L, [mm] Null, Х0 90 3.5 8 Lower, Х-1 80 0 6 Upper, Х+1 100 7 10 Factors’ Interval, dі 10 3.5 2 In Fig. 1 cylindrical specimens after adhesion strength tests are shown.
The most significant factors are lens and arc currents and their influence on adhesion strength was determined.
Serra, Microstructure and mechanical properties of plasma sprayed alumina-based coatings, Ceram.

According to the impetuous onset of biomechanics and to the surge of nanomechanics, it is now possible at least to imagine a bottom-up design of structural materials with multiscale arrangements of the elementary constituents and smart (active) control of the mechanical properties.
The elastic properties of skin have been experimentally investigated by a number of researchers [4-8], mostly aimed at understanding the mechanisms of healing, improving surgery operations, and developing tissue engineered replacements.
The averaged properties of the fibril bundle are used as parameters in the continuum formulation, which is based on the description of the meso-level fibers.
This special nonsingular stress field is the archetype of fracture mechanics problems (i.e., where the singular field is expressed in terms of stress intensity factors).
Fung: Biomechanics: mechanical properties of living tissues (Springer Verlag, New York 1981)

The temperature rise affects the work material properties, as even moderate temperature rise induces residual stress in the machined surface.
Temperature rise on the relief face of the tool affect the surface finish and metallurgical state of the machined surface.
The purpose of developing mathematical models relating the machining response and their factors is to facilitate the optimization of machining processes.
In the present study, these are selected as design factors while the others parameters are assumed as constant over the experimental domain.
For a given no. of variable, the 𝛼 is required to achieve rotatability, computed as α=nf14,where, nf is the no of points in the 2k factorial design(k is the no. of factors).

Introduction In the analysis of rock slope stability, structural plane has become recognized as the main control factor.
The above structural planes were further split under the influence of unloading in the excavation and construction blasting, slope rock mass engineering properties become worse.
The survey found that different causes of the structural planes in the slope is the main factor to influence the slope stability, the mechanical strength of the structural planes and its relationship with space become the main content.
Characteristics and Types of Structural Planes in Lugu Granite From the point of view of the structural plane shear strength, do not consider the structural plane causes here, mainly based on the spatial morphology, roughness and filling mud which are the main factors affecting the shear strength.
Pore water pressure, seismic stress and other factors should be considered when calculate.