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The Mechanical Properties of FRP Fabric Steel-reinforced Concrete Columns Le ZHOU1,2,a , Xiao-chu WANG1,3,b and Jian-peng ZHANG1,3,c 1School of Architecture and Civil Engineering, Shenyang University, Shenyang, 110044, China 2Department of Civil Engineering, Tsinghua University, Beijing 100084, China 3The Key Laboratory of Geoenvironmental Engineering, Liaoning, Shenyang, 110044, China azhoule1978@126.com, bwangxiaochu@126.com, czjpsdwf@163.com Keywords: GFRP tube, steel-reinforced concrete column, intensity, bearing capacity.
The mechanical properties of FRP steel-reinforced concrete columns are discussed.
We study the constitutive relation of the concrete, based on the model and the experimental dates for the control the size of affecting parameters.
Calculation of ultimate bearing capacity of long column is built on the basis of short columns [8], in front of the short column formulas you want plus a stability factor (according to the effective length and gyration parameter reference tables).

Factors of the design, the construction, the train load and the service environment lead to the wide juncture cracking.
Theoretical analysis was made on the influence of the depth and the length of the cracking on mechanical properties of the CRTS Ⅱ slab track.
Computational model and Parameters Computational model According to the structural and mechanical characteristics of the ballastless track, models usually established are mechanical models on the elastic foundation, such as the model of composite beams, the beam-plate model and the beam-solid model.
In this paper, the wide juncture cracking and the tensile stress of the slab track were the main factors to taken in considered, so a positive temperature gradient of 50℃/m was taken[6].
On this occasion, the damage of the crack of the wide juncture cracking has affected the quality of ballastless track

IMPROVING THE TRIBOLOGICAL PROPERTIES OF MG BASED AZ31 ALLOY USING FRICTION STIR PROCESSING H.S.
Abstract Materials with improved tribological properties have become the pre-requisite of advanced engineering design.
Due to low percentage of alloying elements/second phase elements in these alloys, the grain refinement and hence the mechanical properties such as hardness cannot be appreciably enhanced.
Further improvement of mechanical properties is required to extend the application of Mg alloys [2].
Number of FSP passes and ambient conditions during FSP are among other factors affecting the process results.

The main purpose of preparing sisal fiber reinforced PLA composite is to improve the mechanical properties of PLA and reduce the production cost.
At the same time, in this paper, USF, ASF and sf-g-la fibers were respectively mixed with PLA matrix for smelting and blending, and then PLA/USF, PLA/ASF and PLA/ sf-g-la composites were prepared by molding on a flat vulcan press, and compared with pure PLA, the thermal properties, crystallization properties and mechanical properties of the composites were studied.
The content of initiator is the most important factor affecting the graft rate of sisal fiber.
However, due to many factors affecting the properties of fibers and fiber-reinforced polymer matrix composites, this paper fails to cover and consider each of them.
Mechanical properties of sisal fibre-reinforced polymer composites: a review[J].

The mechanical properties such as compressive strength, tensile strength, water absorption and shrinkage are presented.
Up to now, there have been no specific standards for recycled aggregate brick testing in China and most of the mechanical properties test is performed according to the Chinese standard GB/T 2542-2003 “Standard for Test Method of Mechanical Properties of brick”.
On account of the transportation cost of construction and building wastes and other factors, the cost of bricks may be substantially higher than those of conventional bricks at several places.
Properties of concrete blocks prepared with low grade recycled aggregates[J].
Properties of masonry blocks produced with waste limestone sawdust and glass powder[J].

Among them, PEEK is one of the best options when good mechanical properties are required.
There are some factors that acquire more relevance when establishing relation between printing parameters and final material properties such bed, ambient and nozzle temperature [8-10].
Another important factor that affects the mechanical properties is the material used.
The mechanical properties are highly enhanced by the crystallization that occurs applying a thermal treatment [10].
Effects of fdm parameters and annealing on the mechanical and tribological properties of peek.

The properties of PM electrical contacts depend on both their composition and manufacturing process.
This means that the particle size, and distribution of the refractory phase, the homogeneity of the microstructure, and amount of porosity affect the electrical, mechanical, and thermo-physical properties of the composite material [1,2].
Physical properties of experimental powders.
The properties of as-sintered and as-infiltrated composites.
J., Comparison of reignition properties of several Ag/W, Ag/WC, and Ag/Mo electrical contact material, IEEE Transactions on Components, and Manufacturing Technology, Vol 9, 1986, No 1, pp. 86 - 91 [3] Kothari N.C., Factors affecting tungsten-copper and tungsten-silver electrical contact materials, Powder Metallurgy International, Vol 14, 1982, No 3, pp. 139-143

And then, using the MATLAB language, the properties of ILE material are optimized to simulate the bolted-joint interface stiffness.
The material properties parameters are identified by using experimental data.
Introduction Modern mechanical system is often assembled together with various components, parts and units, and bolted-joint is one of the most widely used connection[1].
However, in the whole mechanical system dynamic characteristics analysis, because of the behaviour of joints between each parts significantly affects the dynamics response of the structure, how to properly handle the interface connection problem between parts is a key technology for improving the calculation precision[2].
Presently, domestic researchers add an additional surface between face-to-face contact bolted-joint models, and through optimizing the additional surface material properties to simulate the actual stiffness[3], but it only optimizes one parameters, so the results have a large deviation.

Introduction One of the factors that significantly affects the increase of profitability of metallurgical enterprises is the decreasing share of spoilage of the released products.
Deformation calculation of the system "casting-sand-clay mold" is complicated by the processes occurring in the molding medium under the influence of the casting heat flow: increase of the mold dry layer, changing the geometry and positioning of the condensation zone, as well as temperature changes in the mechanical properties of the mold [1-5].
During the calculation the changes in the mechanical properties of the compressible layer of the moldable mixture associated with the influence of temperature of the casting wall have been taken into account.
One of the major factors affecting the development of the stress during the hindered contraction is the compliance of the mixture.
Hojny, Multiscale modelling of mechanical properties of steel deformed in semi-solid state - experimental background, Key Engineering Materials, 643-650

Space properties of Effects of slope stability by Underground mining Shiguo Sun 1,a, Peixin Dong 1,b 1North China University of Technology Beijing China assg918@163.com, bdongpeixinlk@163.com Keywords: open pit combined underground mining, Space attribute, Superposition role, slope stability Abstract.
And the stress field change of the slope body is the result of two mining factors comprehensive stack.
Considering from the slope stability state, underground mining factors need to be increased, and the size is determined according to the two mining comprehensive stack results.
At the same time, the parameter value still depends on the combined auction of many factors, such as mining method, roof management method, geometry size of mining area, the distribution of geological structure, rock strength and so on.
It can be seen from the stability factor in the expression, the main factors within the influence scope areσ1，σ2，σj1，σj2, which means i1，i2，ε1，ε2.