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These types of connectors were endorsed by experimental push-out tests on hot-rolled steel (HRS) sections, which have different mechanical properties concerning CFS sections, mainly regarding susceptibility to local buckling.
The material properties of the components of the finite element models were represented by constitutive laws and their nominal properties.
Nominal properties are presented in Table 2.
Table 2 Nominal mechanical properties of steel components.
The affected area is larger in lower-strength concrete (Fig 17).

The second type is caused by the mechanical deformation change material cracks, mainly caused by temperature stress and the deformation of concrete change.
Temperature variations produced by deformation affected by concrete internal and external constraints, produce large stress is the main cause of the cracks of concrete.
Fig.3 Computation model To calculate the temperature field, the influence of the main factors internal temperature of concrete cement hydration heat, we use double exponential equation: (1) Where, - age of t when the cumulative heat of hydration of cement, kJ/kg. - the final instars when the cumulative heat of hydration of cement, kJ/kg. t- age. a, b - cement water of the heat transfer coefficient.
The thermal property of concrete based on the weight percentage of each component is calculated using the formula of the surface of the radiation coefficient: (2) Where,- insulation thickness. - thermal conductivity of insulation layer. - the outermost layer of air between the insulation resistance.

Especially, the importance of carbon-fiber reinforced plastics (CFRP) has been generally recognized and CFRPs are a material class for which nondestructive characterization of the material property is as important as flaw detection [2-6].
One of important factors is the layup sequence, which can greatly influence the CFRP composite performance.
If one ply is misaligned in the layup sequence, it can drastically alter the mechanical performance of composite laminates.
It is thought that the fiber direction of CFRP laminates affected to shear wave ultrasonic signals.

The extraction of fault feature is correct or not will directly affect the results of fault diagnosis. [1] Proposed empirical mode decomposition (EMD) method, which the method for adaptive to nonlinear and non-stationary signal decomposition, decomposition the result that come out with clear physical meaning etc.
(4) The for scale factor.
For the index distribution has much important properties such as time, frequency true edge, time shift invariance, frequency shift invariance and scale invariance, etc.
[4] Yude Jie,Chengjun sheng,Yang Yu.Mechanical fault diaynosis method of Hibert-Huang transformation[M].Beijing:Social Sciences Publishing House.2006
Mechanical Systems and Signal Processing, 2001, 15(4):697-705

Application of Vega Path Tool in visual simulation system for bridge cranes DONG Mingxiao1, a, LU Mengmeng1,b, LI Ruichuan2,c, TIAN Junru1,d , LUO Ren Yu1, eand JIANG Ming Shi1, f 1School of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, China 2Shandong Wuzheng Group, Rizhao 262306, China amxdong@sdjzu.edu.cn, blumengmeng880826@163.com, c liruichuan808@126.com , djunrutian@163.com, eluorenyu1989@126.com, fjms_jiang@foxmail.com Keywords: Bridge cranes, visual simulation system, path, Vega Abstract.
But the set forklifts’ paths are often so unsmooth in excess that seriously affect the realistic effects in visual simulation system for bridge cranes.
Spline Navigator regards control points on a forklift’s route as hemet spline control points and possesses hemet spline control points properties.
Particularly, the spline segment tension factor is the key element influencing the bending curve degree.
Mechanical Engineering & Automation, 2013(02):82-84

The disadvantages of unmodified ABS plastic include relatively low electrical insulation properties compared to polystyrene, as well as low weather resistance, in particular sensitivity to UV rays.
Depending on the composition of the copolymer, the properties of ABS plastic can vary in a wide range.
One of the main tasks of modifying polymers is to adjust their properties in the right direction.
The ABS plastic can be foamed, filled with highly dispersed substances, short glass fibers, flame retardants and other components that will change its properties.
Conclusions The body of the aerodynamic model, made using 3D printing technology from the Accura 60 photopolymer material, has all the required properties set by OST 92-8875-2014.

However, an aggregate and simultaneous action of external energy effects and mechanical loads can greatly reduce the operation life of important devices and structures, which will result in their premature failure [1-6].
It is well-known that an important factor responsible for ensuring physical and mechanical properties of materials is their structure which evolves in the process of plastic deformation.
The cutting mode was chosen in such a way that it did not cause any additional deformation to the specimen and did not affect its structure.
Petrzhik, Magnetoplastic effect: Basic properties and physical mechanisms, Crystallography Reports. 48 (2003) 768-795

The physical and mechanical parameters of each layer in the numerical model as shown in table 1.
Tab.1 Physical and mechanical property of rock Rock types Thickness /m Compressive strength /MPa Modulus of elasticity/ GPa Poisson's ratio/µ Density /g/cm3 Medium-grained Sandstone 6.92 79.94 44 0.16 2.64 Sandy mudstone 5.29 56.08 27 0.2 2.62 Mudstone 4.73 27.46 18.7 0.2 2.59 23 coal 1.3 15 9 0.3 1.28 Sandy mudstone 7.26 56.08 27 0.2 2.01 Big accounting Sandstone 10.62 78.38 36 0.25 2.64 Mudstone 1.09 27.46 18.7 0.2 2.59 21 coal 5.2 15 9 0.3 1.35 Mudstone 4.7 27.46 18.7 0.2 2.59 Sandy mudstone 3.26 56.08 27 0.2 2.62 L8 limestone 4.42 30 19 0.25 2.6 18 coal 0.3 15 9 0.3 1.36 mudstone 1.05 27.46 18.7 0.2 2.59 L7 limestone 4.98 30 25 0.2 2.61 The acoustic emission with working face advancing changes to study the deformation and failure of coal and rock mass.
Under the existing experimental conditions, 2.5 m × 0.25 m × 1.4 m (L × W × H) specification model shelves just to test, considering the model according to the selected frame size and other conditions, to determine the similarity coefficient based on the similarity theorem of geometry likelihood ratio (1/50), the time similarity ratio (1/7), bulk density similar ratio (0.68), and other related factors.
According to this test simulation of rock properties to choice fine river sand as aggregate, calcium carbonate and gypsum as cementing material, using sodium tetraborate (borax) as a retarder.
Before protective layer mining, the protected layer is not affected, the coal seam permeability coefficient in original condition. 21 coal seam the original permeability coefficient of about 0.02 m2/Mpa2·d.

Surface Electrical Property.
Fly ash particles with good dispersing properties and high mechanical strength distributed evenly in the sludge floc structure, providing a loose porous skeleton of support for sludge and improving compression resistance of sludge.
Ceramsite obtained from water and wastewater sludge and its characteristics affected by (Fe2O3+CaO+MgO)/(SiO2+Al2O3), J.
Ceramsite obtained from water and wastewater sludge and its characteristics affected by Fe2O3, CaO, and MgO, J.
Thickening properties and utilization of sewage sludge modified by shale[J].

The friction and wear properties of PEEK and PTFE based composites sliding under rigorous alkaline were comparatively investigated.
The property of sealing materials is a decisive factor in a sealing system.
Many efforts have been made to improve the anti-wear and the mechanical properties of PTFE[12] and PEEK[13] by means of incorporation with various kind of fillers.
Among numerous inorganic fillers, potassium titanate whiskers (PTWs, i.e., K2O·6TiO2) have been found to be promising structural reinforcers for polymers and ceramic composites because of their excellent mechanical properties, wear resistance, chemical and thermal stability[14-16].
Friction and wear properties of these composites were comparatively studied under alkaline solution.