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Weld geometry size is one of the important factors affecting microstructure and properties of welded joints [2,3,4].
Taking these two factors, AHP will be used to obtain more objective evaluation.
In this paper, the effect of electron beam weld shape on the titanium alloy fatigue properties of welded joints was investigated, and AHP evaluation model was established.
The weight of each factor was determined by hierarchical analysis.
Nail Bell Funnel Wedge Fig.1 Dimensions of mechanical property specimen Fig.2 Photograph of typical weld shapes Results and Analysis Weld Shape Classification.

The author drew on the bored pile end after grouting pile subsidence influence factor and the main reasons as well as some useful conclusions.
As a result of pile bottom grouting, so in the bottom of the pile to form a larger size large, In this way, can use the expanding head D into the above formula, replacing d. 2）The settlement of single pile in one pile soil coupling problem, But the single pile settlement also includes pile compression, these are shallow foundation settlement analysis need not consider. 3）Single pile settlement mechanism and affecting factors of complex than shallow foundation, Therefore, in the application of stratified summation method for settlement analysis to the concrete analysis of concrete problems.
For grouting pile body, On one hand, the grout injected into lateral climbs along pile, This can be the pile and the soil around the pile are combined into a whole, increases the frictional resistance, On the other hand, is injected into the slurry can be extruded into the pile bottom sediment in, This improved the pile of mechanical properties of soil, increase the pile end soil modulus, is actually solve the problem of pile bottom sediment, At the same time, because the grouting pressure is relatively large, Injection grout can be pressed into the soil around the pile bottom, formed with an enlarged head, By Formula1 knowable, pile end diameter D and pile bottom is proportional to the area of, When D diameter increases, pile bottom area is also increased, While formula 3in additional stress of pile bottom and pile bottom area is inversely proportional to, When the pile bottom area A increases, reduce the additional stress of pile bottom, Then the calculated settlement will be reduced,
Material parameter The pile for isotropic elastic hypothesis, and soil constitutive model using Drucker-Prager model, CPL evaporation materials of the mechanical parameters as shown in the pile model design parameter table1, some parameters of analysis, the value is changing.
In conclusion, pile end grouting on pile settlement in civil engineering is very effective method, Slurry bubble size and bubble of plasma modulus and other factors on the pile settlement pile settlement decisive factors had been analyzed in civil engineering,which will be very useful for civil engineering.

The resin matrix provides the physical and mechanical properties and the conductive spheres provide the electrical properties in the vertical, i.e.
The mechanical properties of ACF with strain rate and temperature had been studied [9].
It is crucial to understand how these environmental factors affect mechanical behaviors.
Gao, Mechanical properties of anisotropic conductive film with strain rate and temperature, Mater.
Gao, Hygrothermal effects on the tensile properties of anisotropic conductive films, J.

The size of plastic zone on the tip of fatigue crack was determined by Suzuki using optical microscopy, which is compared to the results obtained from the stress intensity factor and finally pointed out that the crack growth rate is affected by plastic zone of the crack tip.
The material properties used in analysis of specimen is given in Table 1 reference to [8].
Table 1 Physical and mechanical properties of materials [8].
The grain-boundary geometry could be one of the key factors that control the short fatigue crack retardation process at the boundary since a stage-I short fatigue crack normally propagated along the favored slip plane within a grain in many metallic materials.
Zhai has proposed a model and show that the twist and tilt angles of the crack-plane deflection at a grain boundary are the key factors that control the path and growth rate of a short crack.

The testing methods must be adapted to certify the properties stated in the product data sheet.
An anisotropic behavior of the welded balls is observed when determining mechanical properties. 4.
Yildirim, Effects of welding procedures on mechanical and morphological properties of hot gas butt welded PE, PP, and PVC sheets, Polymer Engineering and Science. 48 (2008) 732-46; [22] S.
Mughal, Optimizing the weld factors affecting ultrasonic welding of thermoplastics.
Standard Test Method for Tensile Properties of Plastics; ASTM International: West Conshohocken, PA, USA, 2014; [33] S.

It was shown that presence of AgI strongly affects crystallization properties.
It is known that presence of precipitates strongly affects electrical properties of described materials.
From described here results it is obvious that their mechanical properties are also effected.
Here additional factor affecting pressure induced volume change must be taken into account.
It was shown also that presence of precipitates not only affects electrical properties of investigated materials but also their mechanical properties.

Crack repairing of aluminum alloys is done using conventional welding techniques or mechanical methods, which results in the redundancy of mechanical properties due to defects formation.
The reinforced samples showed improved mechanical properties as compared to non-reinforced ones.
Yan, Effect of friction stir processing with B 4 C particles on the microstructure and mechanical properties of 6061 aluminum alloy, Int.
Simchi, Friction stir welding of a P/M Al–Al2O3 nanocomposite: microstructure and mechanical properties, Mater.
Yan, Effect of friction stir processing with B 4 C particles on the microstructure and mechanical properties of 6061 aluminum alloy, Int.

The impact of friction factor, thickness of the cold extrusion, semi-cone angle and other factors on cold extrusion was analyzed.
The traditional processing method of hollow piece is to remove of excess material by mechanical cutting to get a correct shape.
Cold extrusion forming process not only can improve productivity, but also improve the utilization of materials and mechanical properties of parts.
Fig.3 is a relationship diagram of the evaluation standards and various factors that affect forming.
a) Cold extrusion thickness b) The protruding die semi-cone angle c) Corner radius d) The friction factor Fig.3 Factors and indicators trends The Analysis of the Forming Velocity field in extrusion process.

UV irradiation determines relevant damages of the mechanical properties and morphological feature of the unfilled sample.
The durability in outdoor applications of nanocharged bulk materials or polymeric films obtained to be applied as coatings depends on different factors.
In fact, damage due to corrosion causes metal component failures with consequent loss in the performance of mechanical properties.
Carbon nanostructured forms based on graphene nanoparticles dispersed in epoxy resins are able to improve electrical, mechanical, adhesion and barrier properties [3, 14-16].
The changes in the local mechanical properties and surface morphological features of the nanocharged sample have been compared to those corresponding to the unfilled sample.

The effect on copolymerization and emulsion properties were investigated, and the polymerization condition was optimized.
We had a test on the practical heat-insulating properties on a prototype device.
Solar heat affects daytime surface temperature and hence impacts building heating and cooling costs.
How hot a house gets depends on many factors and a major one is the surface solar reflectance.
The hollow ceramic micro-spheres should be immersed by dispersant for 30 minbefore adding, then all these ingredients were dispersed in lower rate (around 500 r/min) by a mechanical agitation.