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Online since: August 2015
Authors: Ligia Moga
Materials and Methods Straw Bale Properties.
Further on the main properties of straw bales are briefly presented.
One of the most important factors in choosing the bales is the moisture content.
Experimental The laboratory measurement included the visual appearance, bale dimensions, mass, densities, moisture content, thermal conductivity and mechanical properties under compressive load.
Thermal Properties.
Online since: June 2014
Authors: Wen Quan Wang, Qing Liang Meng, Li Yuan Niu
Considering the CMT process parameters of welding equipment with expert system,welding current and welding voltage were directly controlled by wire feed rate.Hence,three factors were investigated included wire fee speed,welding speed and arc-length modification coefficient[12].
As shown in Fig. 8 ,cross-sectional views of the welds obtained in different arc-length modification parameters.We selected five parameters including-25%,-15%,-5%,+5%,+15%and+25%.The CMT welding quality and appearance morphology was investigated while different arc-length modification parameters.With arc-length modification changed from small to large,weld width presented a gradually increasing trend,But variation of weld reinforcement was not evident.Due to adjust arc-length modification parameter,there were no significant changed in current and greatly changed in voltage.therefore,The current is the main factor of weld penetration,while the voltage is the main factor affecting weld width.
Microstructures and properties of titanium-copper lap welded joints by cold metal transfer technology, J.
Microstructure Characteristics and Properties of Mg/Al Dissimilar Metals Made by Cold Metal Transfer Welding with ER4043 Filler Metal, J.
Process parameter influence on defects and tensile properties of friction stir welded T-joints on AA6061-T4 sheets, J.
Online since: August 2018
Authors: Olexiy A. Balitskii, Bohdan Koman, Volodymyr Yuzevych
Experimental values of deflection δ thus allow estimating mechanical properties for the whole range of film thicknesses.
It was found that the main factor affecting the scale of such dependence is a deposition rate [13].
Nix, Mechanical properties of thin films, Metall.
Il’inskii, Mechanical properties of metallic films, Sov.
Zhu, Fundamentals of superior properties in bulk nanoSPD materials, Mater.
Online since: January 2013
Authors: Yong Li, Di Ma, Cheng E Yue, Wei Nan Jia, Ya Zhen Wang
The degradation of PP is a key factor of affecting the working life.
The impact factors of its degradation are light, heat, oxidation, hydrolysis, high energy ray, etc.
Ultraviolet irradiation can cause chemical reaction of polymer, making polymer change in molecular structure and macroscopic properties.
Standard samples will be get by the injection mechanism, and then test its anti-aging properties through the QUV Accelerated Weathering Tester as well as its mechanical properties.
Test these standard samples’ anti-aging properties by QUV Accelerated Weathering Tester.
Online since: September 2013
Authors: Rizalman Mamat, Obed M. Ali, Ahmad Fitri Yusof, Che Ku Mohammad Faizal
Influence of Oxygenated Additive on Blended Biodiesel-Diesel Fuel Properties OBED M.
POME + 60% vol. diesel) in the ratios of 2%, 4%, 6% and 8% and tested for their properties improvement.
These blends were tested for energy content and various fuel properties according to ASTM standards.
Previous studies have suggested that the weight percent of oxygen content in the fuel is the most important factor for PM reduction, and it is more important than other properties such as chemical structure or volatility [11].
Fig. 1, illustrates different analytical apparatus to measure the fuel properties.
Online since: May 2014
Authors: Di Wang, Cheng Si Li, Dong Man Yu, Xiao Jing Li
Hydraulic components are key components of hydraulic press, its design quality directly affect the performance of the host and service life.
At last, through the software to the linear static analysis, the model to obtain the mechanical properties of the hydraulic components, it has reference significance to improve the design.
Such as analysis of high-rise buildings and large span bridges in earthquake affected, see if destructive accidents will happen; Calculating the temperature field of a nuclear reactor, heat transfer and the cooling system is reasonable.
Hydraulic components is to do the hydraulic energy into mechanical energy, the straight line reciprocating movement or swinging movement of hydraulic actuators.
Input a proper value below the minimum safety factor in the right box of figure, the value of, choose "show sample" button, can get column cap less than the safety in the numerical area coefficient, as shown in Fig.3 below.
Online since: January 2011
Authors: Han Guang Liu, Jian Ping Yang, Guang Wei Chen, Ting Fu, Jun Wang
The factors affecting the additional twists and final twists of the compact spun yarn, such as diameter of the fiber band in the compact field, tilting angle of suction slot in profile tube and spinning speed, were discussed in detail.
This technology has significantly improved yarn tensile properties and reduced yarn hairiness.
The phenomenon of twist increase was discussed in this paper, and the factors causing the differences in the two spinning methods were also investigated.
In this condition, twist angle can be the reflection of twist degree instead of twist factor.
Cheng: Mechanical and Kinematical Analysis on Fiber Brand of Compact Spinning System.
Online since: June 2014
Authors: Napiah Madzlan, O.A. Johnson, Ibrahim B. Kamaruddin
Mechanical properties of the products were evaluated.
Abdullahi[13] discovered that the quality of sandcrete blocks depend on some major factors which include but not limited to methods of production and the properties of the materials used.
The mechanical properties of the petrovege blocks samples were determined in triplicate after curing.
Ersoy-Mericboyu, “Comparison of the properties of glass, glass–ceramic and ceramic materials produced from coal fly ash”.
“Some other factors which affects the crushing strength of Sandcrete Blocks”.
Online since: January 2011
Authors: Mohd Nasir Tamin, M.A. Khattak, M.A. Khan
Consequently, such degrading material properties should be quantified in view of establishing accurate component life prediction model.
This study examined effects of isothermal aging on DBTT behavior of the heat affected zone (HAZ) in welded Type A516 Gr 70 steels.
The J factor can be used to estimate the toughness degradation of steels [20].
Factors contributing to the brittle cleavage fracture are tri-axial state of stress, low temperature and high strain rate.
- No correlation is observed between DBTT and J factor for the different region of the welded joint
Online since: July 2021
Authors: Husaini Husaini, Nurdin Ali, Abdillah Sofian, Nuzan Rizki Muhammad
Therefore an in-depth study of the mechanical properties of the two types of spoke wheel rims and cast wheel rims made of aluminum is needed.
Factors causing rim failure.
The biggest factor affecting this damage is the presence of overload and high vehicle speed when passing through a damaged road (hollow) resulting in an impact that results in the rim deformation.
The presence of alloying elements such as Silicon (Si), Magnesium (Mg) in aluminum alloys can improve the physical and mechanical properties of the aluminum material.
The presence of alloying elements such as Silicon (Si), Magnesium (Mg), copper (Cu) in aluminum alloys can improve the physical and mechanical properties of the aluminum material.
Showing 6171 to 6180 of 25903 items