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The compositions and base material longitudinal tensile properties are shown in table 1.
QP stainless steel chemistries and mechanical properties.
The fracture type can give a qualitative impression of the joint’s mechanical properties, although this remains a subject of debate.
Lu, Microstructural characterization and mechanical properties in resistance spot welding of Q&P980 steel involving “effective softening” at the fusion boundary, Mater.
Marashi, Critical review of automotive steels spot welding: Process, structure, and properties, Sci.

There are many parameters affecting surface roughness, such as cutting conditions, tool geometries, tool wear and material properties and so on.
Numerous investigations concerning the influences of cutting conditions, tool geometry and material properties on surface roughness have already been reported.
The dynamic characteristics and especially chattering is considered to be the most important factor for poor surface quality.
In this study, a natural logarithmic formula was used in the coding of the independent variables [9] min max min 6(ln ln ) 3 ln ln n n n n x x x x x − = + − (5) where x is the coded value of any factor corresponding to its natural value nx , maxnx is the natural value of the factor at the +3 level (upper limit), minnx is the natural value of the factor at the -3 level (lower limit).
Huang: China Mechanical Engineering, Vol. 14.19 (2003), p.1684-1686.

Analysis of Combination mode about vibration mixer in concrete mixing mechanics Hong Shen1, a, Zhi-shan Duan2,b, Fei Li 3,c 1 College of Mechanical and Electrical Engineering, Xi’an university of architecture & Technology, Xi’an, China 2 College of Mechanical and Electrical Engineering, Xi’an university of architecture & Technology, Xi’an, China 3 College of Mechanical and Electrical Engineering, Xi’an university of architecture & Technology, Xi’an, China asophia_shenhong@sohu.com, bwykjj@163.com, cjidianjiaoxueban@163.com Keywords: vibratory mixing, isotropy of concrete mixtures, compressive strength of concrete hardening test cube, chaotic vibration Abstract: The author, in this text, introduces the methods of the vibratory mixing, and gives the comparison and evaluation of the existent vibratory mixing methods.
Firstly, the vibration parameter selection is reasonable will not require physical, mechanical properties; secondly, the mixer in timber and the large consumption of energy, so its application is limited; third is the machine design is complex, because the spiral amplitude along the length change, to ensure that the vibration along the chamber having the same the stirring speed, the auger helix angle made changes.
Table 1 Experimental results contrast between cyclic vibratory mixer and ordinary mixer Mixing condition Mixing time Isotropy of concrete mixtures Compressive strength of concrete hardening test cube /% /% /Mpa /Mpa Vibratory mixing① 38 0.35 1.58 17.96 0.64 0.036 20% cement reduction of vibratory mixing② 38 0.34 1.52 14.62 0.60 0.042 Ordinary force action mixing③ 68 0.68 1.60 14.80 1.15 0.078 Note: ---- Relative error of concrete mixtures’ mortar density; ----Relative error of rough aggregate’s content in one unit volume; ---- Average intensity; ---- Standard deviation; ---- Dispersion coefficient Analysis of the table, fluctuation in the quality of the concrete is affected by two main factors: first, fluctuation of the quality of raw material and measurement error; second, the processes of production and technics.

College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China) Keyword: Bolt Connection; Yaw gear; Wind turbine generator; Strength analysis Abstract: The 3D model of bolt connection between flange and yaw gear was established in Pro/E and pre-processed in Hypermesh.
Material properties The materials of top tower flange and yaw gear are Q345E and 42CrMo respectively, the elastic modulus and poisson's ratio are chosen as 2.1E+05 MPa and 0.3, both of the density are 7.85E-06 kg/mm3 and the yield strength are 345 MPa and 940 MPa respectively. 1.2.3.
The oversized displacement variation of the component subjected to alternating stress may affect the stability of the whole structure to some extent.
When subjected to alternating stress, the bolt life will be greatly reduced, and seriously affect the safety reliability of the whole model.
Too small preload results in exceed alternating stress which leads to the reduction of fatigue life, and then affect the connection reliability of the whole model.

The change law of the spatial structure under different factors Underground structure differs from upper structure as it’s surrounded by soil, with complicated force conditions that are related to many factors.
Such as, column space, column cap, boundary conditions, elastic-plastic calculation and working state and so on, are the common factors that affect structural internal force.
Except peacetime case, the other factors are assumed the same when discussing a certain one’s effect on structure.
Though it can be found in relative data or obtained by experiments, they come from experiments of simple sizes, without taking into account the effects of the above factors.
During the design of this oversize civil air defense project, there are many factors affecting the internal force distribution and the structural types are complicated and varied.

Milling time and rpm of mill is found to be important factors which control the final particle size.
I�TRODUCTIO� Several advanced materials have been designed in order to achieve a set of targeted mechanical and functional properties.
Among these, intermetallics are very important due to their outstanding high temperature properties.
Hence, TiAl forms during the early stage of mechanical alloying and Ti3Al forms at the later stage (after 20 hrs of mechanical milling) for the given range of composition (Fig. 1).
The presence of iron in the system can affect the mechanical properties of the composite.

The following experimental factors were researched:(1) Thickness of Ni plating layer, (2) Bonding temperature, (3) Bonding pressure and (4) Heat treatment after plating.
In the high temperature diffusion bonding of copper and tungsten, the active solder method was used normally because of the much difference of mechanical and physical properties such as melting point, thermal expansion coefficient, Young' modulus and no solidification occurred between W-Cu.
The mechanical properties of the used material are shown in Table 1.
It was assumed that the interface strength decreased and thermal affect zone spread to the W side with increasing the interface thickness.

In general, polymer film smoothing mechanism is a very complicated process which affected by many factors[2].
For different kind of photoresists, the spin coating conditions are not same, need to select the appropriate coating conditions based on the photoresist properties.
These causal factors have an impact on the film roughness.
These factors will exert a good or bad effect on roughness.
[4] Fu Yongqi, Zhao Jingli, Analysis on influence factors of film thickness uniformity of centrifugal coated, J.

The growth of microalgae are affected by many factors, such as N and P concentration, pH, light intensity, temperature and aeration [4, 5].
The results indicated that the length of the exponential period was affected by wastewater concentration.
The interaction of the two algae species in mixed algae culture was also affected by the initial pH.
Lan Enhancement of lipid production using biochemical, genetic and transcription factor engineering approaches (Journal of Biotechnology, 2009)
Optical properties of Nannochloropsis sp and their application to remote estimation of cell mass (Biotechnol Bioeng, 2000)

In contrast, peak temperature in the same depth is strongly affected by the fire duration.
Moreover, the thermal field is an important factor in assessing the residual strength and determining the feasibility of repair of fire-damaged concrete members [5,6].
Table 1 Test specimen properties Specimens t(min) N(kN) S(mm) Specimens t(min) N(kN) S(mm) N0T6 48 0 150 N4T9 90 400 150 N0T9 90 0 150 N6T6 60 600 150 N2T6 60 200 150 N6T9 90 600 150 N2T9 90 200 150 N4T6-D 60 400 100 N4T6 60 400 150 N4T9-D 90 400 100 Note: t-fire duration; N-the axial load applied on the specimen; S-spacing of both longitudinal and transverse reinforcement bars.
This may be attributed to the poor heat-conducting properties of concrete.
This demonstrates that a thermal analysis can be carried out before a mechanical analysis for RC members exposed to fire.