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Online since: August 2013
Authors: Pongdhorn Sea-Oui, Krisda Suchiva, Anont Chaisuriyathepkul, Chakrit Sirisinha
Introduction To gain a good mixing quality, there are a number of factors to be dealt with including mixer and rotor geometries, mixing temperature, mixing time, fill factor, rotor speed, sequence of chemical loading, and material composition.
These factors are known to affect magnitudes of shear and extensional flows.
Blends of elastomers have been widely used owing to their compromised properties.
Natural rubber (NR) has excellent tack and mechanical properties while ethylene-propylene-diene rubber (EPDM) possesses good heat and ozone resistances.
Therefore, blends of NR and EPDM would offer a combination of several useful properties [2-4].
Online since: September 2018
Authors: Yun Long Wang, Dong Ping Wang, Xiao Yang Yuan, Ya Hui Cui, Jian Lei Wang, Qian Jia, Chen Zhang
The result indicated the tribological properties are poor if the graphitization of graphite is too high or low.
The method for preparation of graphite greatly influences the property of graphite bearings, thus physical properties, mechanical strength and tribological property of graphite must be considered while developing a water-lubricated bearing.
Under shock loading for nuclear primary pump or catastrophe, wear and friction would appear between the bearing and the rotor, which could increase bearing clearance and aggravate rotor vibration, thereby further affecting the stability and service life of bearing and of the whole system.
Temperature rise and wear volume, which are two of most important factors, were measured to evaluate the use performance of water-lubricated bearing under frequent start-stop situation.
The basic physical properties of three kinds of graphite specimens were tested
Online since: July 2014
Authors: S. Muthukumaran, Jazeel Rahman Chukkan, V. Maduraimuth, K.C. Ganesh, M. Vasudevan, Ravi Kumar, S. Murugan
However, the effect of all influencing factors of laser welding on weld bead geometry has not been extensively studied.
The thermo-physical properties data of AISI 304L SS used in this analysis was taken from previous work which is shown in fig. 2 [13].
Fig. 2: Thermo-physical properties of 304L SS [13] Fig. 3: 3D Conical beam Source Finite Element Analysis.
Small differences in material properties used can also be the reason.
This can be attributed to the difference in stiffness, area of clamping, unclamping sequence, small differences in material properties used in simulation and experimental errors.
Online since: November 2024
Authors: Wurood Asaad, Lina M. Shaker, Ahmed Mahdi
Solar heat is one of the main factors affecting the durability of roofing membranes, according to research and real-world experience with the deterioration of these materials over time.
Conversely, the maximum weight of CaCO360% weight percent exhibits good IR reflectance and less tribological properties.
The most widely used inorganic filler in polymer materials to lower costs and improve mechanical properties is calcium carbonate (CaCO3).
Effect of calcium carbonate on the mechanical and thermal properties of isotactic polypropylene/ethylene vinyl acetate blends.
Investigation of the influence of fillers on the properties of poly (vinyl acetate) adhesives.
Online since: July 2022
Authors: Josefina R. Celorico, Blessie A. Basilia, Jo Ann C. Sy, Alvin Kim Collera, Marianito T. Margarito, Marlo Joseph Comadre
The printability, physicochemical, and mechanical properties of the PP-NPCC blends were determined.
Among the impressive properties of PP are its chemical resistance, good mechanical properties, lightweight, and bacterial resistance properties, making it ideal for medical applications.
It was observed that the humidity and build plate adhesion were two of the main factors that can reduce warpage during 3D printing.
Mechanical Properties.
The mechanical properties of PP and PP-NPCC composites are shown in Figure 5.
Online since: December 2006
Authors: Si Qin Pang, Zhen Hai Long, Wen Xiang Zhao, Xi Bin Wang
Introduction The machining characteristics of engineering materials depend primarily on their mechanical and chemical properties.
Such properties depend on the machining process and the engineering materials used in production.
The chemical constitution and the mechanical property of this ultra-high strength alloy steel are listed in Table 1.
The factors and levels are shown in Table 2.
Moreover, due to the pretty high plastic property, mechanical hardening effects appear which leads to the fracture of primary cutting edges.
Online since: May 2014
Authors: Yao Gen Shen, Zhen Chen, Lu Ming Shen, E.A. Flores-Johnson, R.K. Annabattula, P.R. Onck
Nanocomposite coating films have been increasingly used in industrial applications because of their unique mechanical and physical properties.
Introduction Nanocomposite coating films have been increasingly used in industrial applications such as high-speed machining, tooling, optical and magnetic storage devices because of their unique mechanical and physical properties [1].
The elastic and thermal material properties used for the film are shown in Table 1.
Table 1 Material properties of Ti0.39-Si0.04-N0.57 film.
An elastic material model was used to describe the behaviour of the film using the material properties shown in Table 1.
Online since: December 2012
Authors: M.A.H.A. Ssomad, R.M. Hudzari, M.N.A. Noordin, S.J. Abdullah, S.M. Sapuan, S. Hassan
Figure 4 Shows the force affected for harvesting the tubers during simulation process.
Table 1 show the material properties of hand tool that used for simulation process.
Table 1 Shows the material properties of hand tool.
The force that impact to the structure used was 100,000 Newton and the safety factor used was 1.
International Journal Of Mechanical And Materials Engineering (IJMME), Vol. 2, No. 1, 29-39
Online since: September 2019
Authors: Qiang Zhang, Ming Wang, Xu Zhang, Li Li Cheng
It could be seen that the geometrical dimension has little effect on the fatigue life of Cu foil for two different thicknesses (t=100, 150 mm), and the grain size became the main factor affecting the fatigue properties of Cu foil.
This caused the different fatigue properties.
Zagar, Characterization of mechanical and thermal properties of thin Cu foils and wires, Sensor Actuat A-Phys. 99 (2002) 172-182
Weiss, A study of the mechanical and fatigue properties of metallic microwires, Fatigue Fract.
Weiss, Size dependency of mechanical properties of high purity aluminum foils, Mater.
Online since: January 2005
Authors: Hak Cheol Lee, Jin Won Choi, Jin Keun Oh, Nack Kim
Besides such defects, investment cast alloy welds have microstructural features much different from those of conventionally processed titanium alloys, which may have adverse effects on mechanical properties.
In the present study, the effects of load ratio and environment on the fatigue properties of investment cast Ti-6Al-4V alloy welds are investigated.
Effects of welded microstructures on fatigue properties were analyzed, and microstructural factors occurring at and phases and at interfaces between them were examined by observing the fatigue crack propagation behavior and fractured surfaces.
Fatigue Properties.
This finding indicates that the fatigue crack propagation behavior of Ti-6Al-4V alloy was strongly controlled by intrinsic factors such as microstructure rather than by extrinsic factors such as crack closure.
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