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In recent years, due to its excellent mechanical properties, especially its insensitivity of strength to thickness, high-rise structural steel with high performance and heavy thickness made in china was applied more and more widely in large-span and high-rise steel building structures.
The high-rise structural steel was often used as H-section column with heavy thickness at present, and its residual stress distribution has significant influence on load-carrying capacity, which is one of the critical factors in reliability analysis of elementary members using high-rise structural steel.
The high-performance construction steel, represented by Q235GJ and Q345GJ steel series，are widely used in high-rise building constructions, showing superiorly good mechanical properties in seismic behavior, welding, stable yielding stresses and highly tear resistance.
However, relevant studies on the mechanical properties of the GJ series steel plate are far from enough, especially the exact prediction of the welding-induced residual stresses of the components, which will directly affect the design reliability analysis of structures.
Mathematic software MATLAB was used to accomplish this work.Fig.5 illustrates that variations of residual stresses through the thickness do exist in the heat affected zone around the welds.

Before loading, the material parameters in Table 1 are added to the properties.
Table1 Material properties Material Poisson ratio Elasticity modulus [MPa] Yield strength[MPa] Hardelling index Densiy (g/mm3) 5050 0.3 2.07×105 270 0.27 7.85×103 Fig.1 Stamping size A Single Factor Analysis Die Gap (D).
Fig.2 is simulative results of different die gaps (D) (other factors are certain).
Analysis of Multiple Factors Experimental Design.
Table 4 shows that the drawbead height (h) is the most important parameter affecting the minimum thickness.

Mechanical properties were determined on tensile test bars taken from the centre of the casting.
The demand for good mechanical properties will be even more pronounced in these castings.
Spherical morphology of the precipitated graphite is the most important factor to achieve required mechanical properties. [1-6] Heavy-sectioned parts are characterised by low cooling rate and long solidification time.
Nodularity must be 80% or more to achieve the required mechanical properties.
Mechanical properties in thermal center of cones.

The experimental method is often used in engineering because many factors affect the welded steel fatigue performance, which uses to obtain the welded of steel fatigue fracture data.
The experimental method is time-consuming, and many factors which affect the welded steel fatigue are difficult to be taken into account.
In recent years, the method of mechanical parameters of the weld near the local area has been used to describe the fatigue strength of welded steel structures.
Because this method has been taken into account the factors on the fatigue strength of welded steel structure local details, which can reflect the actual situation of structural fatigue fracture.
The Calculation of 3-D Residual Stress Field of Welded Steel Structure Adopting with 3-D FEA technique, selecting thermal analysis unit, considering the thermal resistance and mechanical properties of material changing with temperature, using the inside heat rate loading method to simulate welding heat source, a mathematical model of welding transient temperature distribution was established.

It’s an important factor affecting slope stability in the expansive soil area.
Because of its special engineering properties and mechanical properties of expansive soil [1], channel slope instability is one of the major technical problems of South-to-North Water Diversion Project.
Study on failure mechanism and mechanical properties of expansive soil are carried out by use of large centrifuges, high-precision CT triaxial apparatus scan .
The safety factor of channel slope is 1.09.
Finite element analysis for slope stability and its influencing factors with pile reinforcement.

The electric and damping properties of PMN/CB/EP composites were detected.
Hori[11] reported a new type of mechanical damping composites composed of piezoelectric ceramics(PZT), carbon black and epoxy resin, but this paper just showed the damping properties at 300Hz and 20 °C.
Then considering the geometric factors of samples, the resistance was conversed to resistivity.
As shown in Figure 2 and Table 1，the CB content affected the glass transition temperature Tg, loss factor tanδ, loss area(TA) and damping temperature range(∆T) of PMN/CB/EP composites.
Compared with non-piezoelectric ceramic composites ZrO2/CB/EP, piezoelectric ceramic composites PMN/CB/EP perform higher damping properties, which proves the piezo-damping mechanism exist and play a role in damping properties.

Based on the powerful data processing capabilities of GIS, the risk of sand inrush caused by multiple factors are analyzed quantitatively, and sand inrush risk zoning map was also analyzed eventually.
Sand inrushing mechanism and influencing factors is different from mine water hazard, to be treated as an independent mine geological disasters.
The calculation results of safety pillars in mining Coal Seam 2 Hierarchical name The width of waterproof pillar /m The width of coal pillars for quicksand /m 21 Hsh1≥36.24±4.0 Hs1≥19.59±1.5 22 Hsh2≥39.40±4.0 Hs2≥22.24±1.5 23 Hsh3≥40.63±4.0 Hs3≥23.53±1.5 24 Hsh4≥41.29±4.0 Hs4≥24.3±1.5 Risk Evaluation of Sand Inrush of GIS Mining sand inrush is affected by the compound impact of mining, engineering geology and hydrogeology, and many other factors arising from the complexity of nonlinear engineering geological process performance, water-bearing unconsolidated strata under the conditions caused by the collapse of the sand factor[5,6] is expressed as follows eq.(5): （5） : the cumulative mining thick overburden failure is highly expected results, the roof mudstone content, aquifer water abundance, the water-bearing unconsolidated strata thickness, water-head height, the thickness of
According to Overburden failure height, the safety of coal and rock pillars height, and protective layer thickness calculated results as a safety threshold, Comprehensive analysis of drilling information, the various factors to establish the research required for the graphics library and property database, each express a thematic content for the layer, to quantify the factors in GIS, spatial registration, overlay analysis, and in a different color grayscale graphics on the expression values or property changes [8,9].
(In Chinese) [7] Xiang YF: A mechanical model for the water inrush of collapse pillars.

All these factors affect the coil surface.
For determining the suitability of HVOF coatings for purpose of sink roll renovation is necessary to take into account also other degrading factors, mainly resistance of a coating against abrasive wear and building-up of dross particles, intermetallic reaction products etc.
Bunshah, Handbook of Hard Coatings: Deposition Technologies, Properties and Applications.
Fedrizzi, Mechanical and tribocorrosion properties of HVOF sprayed WC–Co coatings, Corros.
Troczynski, Correlations between Microstructural Parameters, Micromechanical Properties and Wear Resistance of Plasma Sprayed Ceramic Coatings, Wear 250 (2001) 569-575

Their investigation led them to the conclusion that the process factors significantly affect the response.
They employed welding voltage, welding speed, and welding current as process factors in their investigation.
Eivani, An experimental investigation on the effect of gas tungsten arc welding current modes upon the microstructure, mechanical, and fractography properties of welded joints of two grades of AISI 316L and AISI310S alloy metal sheets, Mater.
[7] Yu Su, Wenya Li, Xinyu Wang, Tiejun Ma, Liang Ma, Xiaomu Dou, The sensitivity analysis of microstructure and mechanical properties to welding parameters for linear friction welded rail steel joints, Mater. 
Gobalakrishnan, Influence of TIG welding processing parameters on mechanical properties of austenitic stainless steel using Taguchi analysis, Mater.

Tungsten is a promising armour material for plasma facing components of nuclear fusion reactors (NFR) because of its low sputtering rate and favourable thermo-mechanical properties (high melting point and good thermal conductivity).
This paper reports some results of an experimental campaign carried out for investigating the microstructural characteristics and the mechanical properties of tungsten (99.97% purity; 5% porosity) for fusion applications.
Morphology, structure, integrity and mechanical properties of the coatings have been extensively investigated [3,6-7].
This paper reports results of an experimental campaign carried out for investigating the microstructural characteristics and the mechanical properties of bulk tungsten.
Grain size is not affected by the heat treatment at 500 °C which only induce a small decrease of dislocation density.