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Mechanical Properties on the Welded Connection of Pipe and Hollow Spheres Joints Yajie Yan1, a, Honggang Lei1, b, Xue Yang2, c 1Taiyuan University of Technology, College of Architecture and civil engineering, 030024, China 2Shandong Yingcai University, College of Architecture and engineering, 250104, China atylaoxi@163.com, blhgang168@126.com, cyangxue-123321@163.com Keywords: Steel Pipe; Hollow Sphere; Welded Connection; Mechanical Property Abstract.
Introduction Steel pipe as a reasonable force component, widely used in mechanical, civil engineering.
Third different matching pipe - sphere of stress concentration The formula of computing bearing capacity of hollow sphere joints at Shell procedures and other literature used , we can see by the expression that ratio of pipe diameter and sphere diameter d / D is one of the important factors of bearing capacity of hollow sphere joints.
By analyzing the stress distribution of pipe-sphere joint in diameter d, sphere diameter D, pipe thickness t, hollow sphere thickness T under the action of individual factors, stress concentration factor results in Table 3, the rules show as follow: (1) As d increases, the stress concentration factor was a decreasing tendency; (2) As D increases, the stress concentration factor was an increasing trend; (3) With t increasing, the stress concentration factor was an increasing trend; (4) As T increases, the stress concentration factor was an increasing trend.
In Chinese [6] Pei Xu, Yaguo Xue: Mechanical analysis and experimental research on large welded hollow spherical joints, Journal of Southeast University (Natural Science Edition), 1997, 103-108.

Element nodes slightly affect the result of safety factor and final deformation of the slope.
The first is about model material properties in which Mohr Coulomb failure criterion is employed and the other is to explain the strength reduction method that is to obtain factor of safety of the slope in this study.
Soil properties 2D Plain strain slope problems are considered in this work.
In this study, the Mohr- Coulomb constitutive model is employed to express soil material properties and Mohr Coulomb criterion is used to relate the shear strength, internal friction angle, and cohesion of the soil material.
Fig. 3(a)~(e) and Fig. 4(a)~(e) show the failure slip line of the slope regarding to different soil internal friction ϕ and soil cohesion c and their corresponding safety factors are shown in Fig. 5(a) and (b).

The paper analysed the effect of various DCT process parameters on mechanical properties and observed microstructure before and after DCT treatment by the SEM.
Many researches have shown that deep cryogenic treatments can change the microstructure and improve the mechanical properties of materials.
The other factors were considered as fixed and constant parameters.
Fig. 1 Wear curve before and after deep cryogenic treatment Mechanical properties.
The results show that the soaking temperature on mechanical properties is the first factor, the second one is the soaking time, the third one is the cooling rate, the tempering temperature is lattermost.

The model takes into account friction forces and identifies the mechanical properties of the injector.
Their robustness and relative insensitivity to fuel properties and quality are attractive features.
The identification procedure for the mechanical properties of the model parameters was changed and the simulations of the needle lift, pressure in the injection sac and the fuel dose injected were conducted.
[2] Idzior M., A study of compression ignition engine injector nozzle parameters in the aspect of their operating properties.
(in Polish) [7] Bąkowski A., Radziszewski L., Identifying the mechanical properties of the fuel injector of an internal combustion engine, In Problems of maintenance of sustainable technological systems eds.

Malfunction of ropes can be caused by several factors and may occur for several reasons.
This paper is aimed at the damage itself, but also a potential impact on the changes to the structure and possible changes of mechanical properties of ropes in the area struck by ​​electric discharges.
Presence of the oxide particle 2 mm 865 – 883 HV Wire break in a light, heat-affected area 530 – 556 HV Fig. 7 The wire with increased hardness of the material in areas partially melted down, and a considerable overheating of the material Mechanical properties Tensile tests were performed on another fourteen undamaged wires in a strand without visible damaging.
Before the test, areas were marked on all wires, where five damaged wires excluded from the test were damaged by contact with the trolley, in order to ascertain whether the intact wires experienced any changes to their properties that would lead in this area to their preferable damage.
Analyses confirmed that the other wires from the strand damaged by contact with the trolley had not changed their microstructure and mechanical properties, i.e., they remained fully functional.

Introduction Due to the temperature and humidity affect of composite properties, environment design criteria should be worked out in the selection and design of composite aircraft structures and should be accredited or approved by certification institutions.
Compensation process of environmental factors.
Then, according to statistical analysis technique, give material allowable corresponding to environment conditions (B basis value and A basis value); in terms of composite material tensile properties, compression properties and extrusion strength properties of mechanical fastener splicing, through comparative analysis on material allowable in different environment conditions, give environmental compensation factors based on statistical analysis.
Table 3 provides environment compensating factors of several aircraft models.
It shows, for non-main framing (usually in stiffness design), that higher environment compensating factors can be adopted (such as 1.15 or 1.18); for main framing, lower environment compensating factors.

Introduction On the properties of the connector in the welding process influenced many factors: the physicochemical properties of welded materials arising from their chemical composition and structure, the used technologies, equipment and consumables.
The high temperature mechanisms adversely effects on the mechanical properties of the obtained joints.
These factors make this, that the welding technology MIG, MAG gas-shielded must consider limiting heat input arc.
The method allows for fast, precise reduction of weld-faces temperature, a positive influence on its structure (grain refinement) and improves its mechanical properties (especially toughness).
Majewski, Tribological properties of Super Field Weld with Micro-Jet Process, Adv.

Mechanical, fungicidal, and sorption properties were determined according to the standard procedures.
Ageing of beech wood resulted in a big drop in all of the tested mechanical properties, but showed no significant differences in fungicidal properties.
Service life depends on wood species, extractive content, water absorption properties, use conditions, and some other factors.
The rate of liquid water absorption in wood depends on several factors.
Although beech wood showed a large drop in all of the tested mechanical properties, no difference was found in fungicidal properties.

The CMP process is dominated by the phenomenon of wear in which the removal rate of materials is determined by the nature of the chemical and mechanical properties of the thin film on the wafer.
Also, the wear of material is greatly affected by the surface properties of the mating surface, that is, the polishing pad.
The surface topography and mechanical properties of the polishing pad combined with the tribological condition of the CMP process is therefore the key role in the mechanism of material removal in CMP.
Among the properties of the pad, the surface roughness is known as the dominant factor that determines the removal rate of the thin film [3].
Besides the friction force, there is another factor that affects the uniformity of the removal rate.

Safety and exploitation conditions of welded steel structure depend on many factors.
Introduction Safety and exploitation conditions of steel welds of car body depend on many factors [1-4].
However there is a different influence of those elements on mechanical properties of welds.
To assess the effect of nickel, molybdenum and manganese presence on mechanical properties of deposited metals basic electrodes prepared in laboratory environment were used.
Wegrzyn: The Influence of the Main Factors on the Impact Toughness Properties of Low Carbon Steel Welds, Proceedings of ISOPE'97, Honolulu, USA (1997) [8] T.