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Stud shear connector corrosion is an important factor for the durability degradation of steel-concrete composite structures.
Therefore, stud corrosion is an important factor for the durability degradation of steel-concrete composite structures.
This article, through the constant current acceleration simulation test, will research the rules of how stud corrosion affects stud’s bearing capacity and the mechanical properties of steel-concrete composite beams after the corrosion of studs.
Stud shear connector corrosion is an important factor for the durability degradation of steel-concrete composite structures.

Factors like cost, better understanding and control of the material’s properties make alloy steels as commercially the most widely used hardfacing alloys [10].
Top zone is called laser melting zone (LMZ), second zone is called partially melted zone (PMZ) and third zone is referred to as heat affected zone (HAZ).
These zones are characterised as laser melted zones (LMZ), partially melted zone (PMZ) and heat affected zone (HAZ).
These microstructural changes have direct bearing on the mechanical properties.
The LSM of both M2 and Mo alloyed M2 HSS introduces three distinct zones near the surface namely laser melted zone (LMZ), partially melted zones PMZ and heat affected zone (HAZ).

Non-Isothermal Simulation of Melting Process in Twin Screw Extruder Based on Two Typical Screw Configurations Liang Chang1, a, Luo Bing1, b and Wang Kuisheng1, c 1 Mechanical and Electrical School, Beijing University of Chemical Technology,15 Beisanhuan East Road, Chaoyang District, Beijing,100029, China aliangchang@mail.buct.edu.cn, bluobing@mail.buct.edu.cn, cwangks@mail.buct.edu.cn Keywords: Heat transfer; Numerical simulation; Twin screw extruder.
We can see that velocity gradient is a main factor to affect the magnitude of the viscous dissipation
Material Properties HDPE is chosen for this study.
The properties of the material are shown as Table 3.
Table 3 Material properties Properties Value Density [Kg·m-3] 950 Thermal Conductivity [W·m-1·K-1] 0.5 Specific Heat [J·kg-1·K-1] 2302 Melting Heat [J·kg-1] 21160.7 Liquidus Temperature [K] 420.8 Solidus Temperature [K] 407.5 Results and Discussions Temperature contours Temperature fields of two configurations are shown in Fig.3.

However, if the thin-walled structures under dynamic loading conditions, inertial effects and the effects of strain rate greatly affects the structure.
The properties of this material are as shown in table 1.
Material properties of specimens (Tensile Strength) (Yield Strength) MPa MPa 353 265 20 mm (t) (b) (L) (a) (b) Fig 1.
Quasi-static testing Finite Element Method Geometry Model and Properties of Materials.
The material properties of impactor are assumed much more rigid than tube, therefore impactor modeled as rigid bodies.

Introduction Compared with cast magnesium alloy, wrought magnesium alloy has higher strength, better scalability and more diverse mechanical properties, while the cost of production is lower.
MgO, Mg2SiO4, MgSiO3 and MgF2 have high temperature resistance, thus the heat resistant property of microarc oxidation coating is good.
According to the above analysis, the pulse voltage is a crucial factor which affects the microstructure and corrosion resistance of the microarc oxidation coating of AZ80 magnesium alloy.
Lei, Electrochemical properties of microarc oxidation films on a magnesium alloy modified by high-intensity pulsed ion beam, Surf.
Li, Duplex surface modification combined with micro-arc oxidation and polymer plating on AZ31 magnesium alloy and their functional properties, Chin.

Classification and characteristics of welding fixture program Welding pieces mostly to stamping parts of the surface shape, surface modification, through the process of drawing and bending forming process, assembly hole and a positioning hole, largely determines the shape of special fixture, plan affect the design work.
Many factors influence the welding fixture scheme, combined with the requirements of technical specification, according to the author's project design experience and theoretical basis, on the basis of welding fixture design characteristics of results, as well as welding fixture of the initial design rules, it can be divided into the following several kinds typical type: Separate type surface positioning fixture The rotary pin positioning fixture Surface orientation and guide rod combination Rotating pin and the positioning piece combination fixture separate pin positioning fixture rotary pin, positioning piece and moving pin Positioning piece and clamping member Locating piece, part and a movable pin modular Locating piece, part and a positioning pin Manual lever hinge fixture Locating piece, part and the guide rod Pneumatic lever hinge fixture Locating piece, part, positioning pin and guide rod positioning piece and positioning pin two rotating (cylinder) and locating piece
The project to achieve the intelligent design the core technology is the building of the knowledge database, which includes building a model, model representation and management, the construction of knowledge base is not accomplish at one stroke, from its implementation steps, mainly has the following several steps[4] (1) statement of class and subclass, and defines the relationship between; (2) define the properties and methods; (3) coordination between classes and subclasses inherit relationship; (4) feedback query results and input knowledge base.
China Mechanical Engineering.1999, 3; Vol.10 No.3; 301-305

Introduction Surface finishing, considered as the study of microgeometrical properties of the workpieces’ surfaces and their influence on their functional behaviour, has a great importance in the engineering of the manufacturing processes due to the wide variety of functional behaviours affected by it.
The delimitation of the measurement area and the choice of a suitable reference system are key factors in the determination of the values of the most representative parameters used in the characterization of surface finishing.
Reference system In a simplified way, it is possible to say that the mechanical roughmeter receives from the scanning unit a signal proportional to the relative displacements (z-axis) of the stylus’ tip respect the trajectory that the measuring head follows in its displacement (x-axis).

Fatigue Crack Growth Behavior of Corner Cracks under LBH Loading Chung Seog Oh 1,a, Philip Park2,b, Yong Hak Huh 2,c, Soon Gyu Ko 3,d, Don Young Hwang 4,e and Hyeon Mo An 4,f 1 School of Mechanical Engineering, Kumoh National Institute of Technology, Gumi, Korea 2 Center for Environment and Safety Measurement, KRISS, Daejeon, Korea 3 Material Testing Division, MTS Korea, Seongnam, Korea 4 Korea Institute of Aerospace Technology, Korean Air, Daejeon, Korea a ocs@kumoh.ac.kr, bphilip@kriss.re.kr, cyhhuh@kriss.re.kr, dsoongyu.ko@mts.com, e donhwang@hitel.net, fanhyeonmo@naver.com Keywords: Fatigue Crack Growth, Corner Crack, Damage Tolerant, Random, LBH Abstract.
The threshold stress intensity factor, ∆Kth, is 3.74 mMPa .
The stress intensity factor (SIF) of a corner crack is calculated by the equations proposed by Newman and Raju [8].
The modeling parameters are set to the same as the material properties and the dimension of a real specimen.
It is inferred that the bearing stress affects a detrimental influence on the early fatigue crack growth in the case of corner cracks.

The results reveal that the impeller design and the design parameters (diameter and length) affect the hydraulic performance and hemolysis of the axial pump obviously.
The distribution law of circular rector correction is expressed as: (1) where vu is the component rotating velocity, vu2' is the component velocity of rotating assumed vu2R is const, and ξ is the correction factor between 0.9 and 1.1.
The result shows that with the increasing of the diameter and length of impellers, the characteristic curves of blood pump will up and the blood pump hydraulic properties improves, which will be easier to satisfy the special requirements of blood dynamics.
Mechanical Assist Devices as Bridging Systems to Transplantation: A Current Review, Possible Risks, and Perspectives.

The ever increasing scarcity in wood affects on the decreasing of fishing vessel population of sizes below 30 GT.
The main step in selecting an adhesive for bamboo lamination is doing research on technical and economic factors of various types of glue.
Fishing boats operating in sea water (salinity values specified) makes the life of laminated bamboo relatively short due to their environmental factors.
Aina, Strength properties of thermal treated glue lam of bamboo Bambusa Vulgaris, International Journal of Advanced Biological Research, Vol. 3 (2013)
Talabgaew, Experimental Studies on the Mechanical Property of Laminated Bamboo in Thailand, International Journal of Engineering and Applied Sciences (2007)