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Online since: July 2011
Authors: Eric Williamson, Bryan Bewick, Casey O'Laughlin
Variables considered in the testing program include stud and track section properties, stud-to-track connection details, stud orientation and wall layout, and sheathing system properties.
By virtue of their material characteristics and properties, steel studs offer significant advantages over other materials such as wooden studs.
The mechanical interaction of veneer layers and steel studs and how those veneer layers affect the resistance of steel stud walls.
Primary factors in the selection of steel stud wall systems for use in U.S.
Nonetheless, data collected from load tree tests show that the overall response of the system is more greatly affected by the presence of sheathing than by the strength of the sheathing materials used.
By virtue of their material characteristics and properties, steel studs offer significant advantages over other materials such as wooden studs.
The mechanical interaction of veneer layers and steel studs and how those veneer layers affect the resistance of steel stud walls.
Primary factors in the selection of steel stud wall systems for use in U.S.
Nonetheless, data collected from load tree tests show that the overall response of the system is more greatly affected by the presence of sheathing than by the strength of the sheathing materials used.
Online since: September 2017
Authors: Iveta Pandová
The properties that are characteristic to the nanoscale include:
1.
Polymer nanocomposites properties are determined with complex operation of variety factors, such as: 1.
Preferably, the polymer nanocomposites have high mechanical properties.
Ion - exchange and surface properties can affect, among other things, by the action of the alkali metal hydroxide.
Besides the influence on the zeolite component, modification by hydroxides may dissolve some non-zeolite components, for example cristobalite, which can also positively to affect surface and ion-exchange properties.
Polymer nanocomposites properties are determined with complex operation of variety factors, such as: 1.
Preferably, the polymer nanocomposites have high mechanical properties.
Ion - exchange and surface properties can affect, among other things, by the action of the alkali metal hydroxide.
Besides the influence on the zeolite component, modification by hydroxides may dissolve some non-zeolite components, for example cristobalite, which can also positively to affect surface and ion-exchange properties.
Online since: August 2014
Authors: A.M. Mustafa Al Bakri, M.H.M. Amini, A.K. Zulhisyam, Mazlan Mohamed, A.M. Iqbal, Amizi A. Mohammad, Razak Wahab
Application of nano carbon tube in electronic industry had become well known due to the characteristic of nano carbon tube that are expected to be very good thermal conductors along the tube, exhibiting a property known as "ballistic conduction," but good insulators laterally to the tube axis [19, 20].
Factors affecting the chip temperature such as coolant velocity and chip power of PLCC are studied and presented.
[6] Huat, J.L.K., “CFD application in Electronics System Cooling, Final Year Project, School of Mechanical Engineering, Universiti Sains Malaysia, 1998
“Vapor-grown carbon fibers (VGCFs): basic properties and their battery applications”, Carbon 39, 1287-1297, 2001
J., “Morphological and mechanical properties of carbon-nanotube- reinforced semicrystalline and amorphous polymer composites”.
Factors affecting the chip temperature such as coolant velocity and chip power of PLCC are studied and presented.
[6] Huat, J.L.K., “CFD application in Electronics System Cooling, Final Year Project, School of Mechanical Engineering, Universiti Sains Malaysia, 1998
“Vapor-grown carbon fibers (VGCFs): basic properties and their battery applications”, Carbon 39, 1287-1297, 2001
J., “Morphological and mechanical properties of carbon-nanotube- reinforced semicrystalline and amorphous polymer composites”.
Online since: March 2011
Authors: W. Homberg, Tim Rostek
Therefore, an adequate thermo-mechanical hot stamping operation is necessary.
For example, due to the semi-finished material’s physical properties, as e.g. high heat capacity regarding heat treatment, the process design parameters and the tool design had to be adapted.
Within the scope of thermal treatment this particularly affects the holding times of components when being heated and quenched during the hardening process [1].
One option to enhance the strength and, thus, wear resistance of steels is the thermo-mechanical method shown in figure 2, which refers to ausforming processes.
The essential factor is an immediate quenching process following the forming operation, e.g. by a heat transfer into a pre-cooled tool.
For example, due to the semi-finished material’s physical properties, as e.g. high heat capacity regarding heat treatment, the process design parameters and the tool design had to be adapted.
Within the scope of thermal treatment this particularly affects the holding times of components when being heated and quenched during the hardening process [1].
One option to enhance the strength and, thus, wear resistance of steels is the thermo-mechanical method shown in figure 2, which refers to ausforming processes.
The essential factor is an immediate quenching process following the forming operation, e.g. by a heat transfer into a pre-cooled tool.
Online since: March 2019
Authors: Jian Qun Tang, Jian Ming Gong, Lu Yang Geng
Some measurements were carried out to explore the factors that caused the occurrence of the bursting.
Actually, the presence of this inclusion-containing S will affect the properties of the Inconel 600, especially the fatigue resistance, which will probably reduce the service life of the rupture disc.
Many researches have approved that the presence of inclusions in alloy will affect the fatigue resistance of the alloys [9,10,11].
This is the key factor causing the bursting of the rupture disc.
Kim, et al, Evaluation of the low cycle fatigue failure properties for GTAW weldments of Alloy 617 at 950 °C, Eng.
Actually, the presence of this inclusion-containing S will affect the properties of the Inconel 600, especially the fatigue resistance, which will probably reduce the service life of the rupture disc.
Many researches have approved that the presence of inclusions in alloy will affect the fatigue resistance of the alloys [9,10,11].
This is the key factor causing the bursting of the rupture disc.
Kim, et al, Evaluation of the low cycle fatigue failure properties for GTAW weldments of Alloy 617 at 950 °C, Eng.
Online since: January 2012
Authors: Zi Hong Zhang, Hong Quan Zhang
So labor strength of workers is strong, production period is long, finished product rate is low, the effect factors for quality by workers is bigger.
During the radial rolling, neglect the height change of ring, according to the plasticity constant principle, (1) So the change rule of inside and outside diameters is: (2) (3) In the (1),calculate the derivation of time,get the increasing speed of ring outside diameter, (4) In the(2),=-/ is decreasing speed of ring wall thickness, the value equals to the feed speed of screw down , (5) Equation (1) – (4) indicate: the preliminary dimensions and feed speed are main factors affecting the increasing movement of ring diameter.
The common mechanical feed in system includes worm feed in, cam feed in and ball screw feed in etc. modes.
Ball screw has high efficiency, high positioning precision, drive reversing, long lift time, good synchronization properties.
Control with high properties ring mill by fully digital AC frequency conversion drive system of Siemens Company.
During the radial rolling, neglect the height change of ring, according to the plasticity constant principle, (1) So the change rule of inside and outside diameters is: (2) (3) In the (1),calculate the derivation of time,get the increasing speed of ring outside diameter, (4) In the(2),=-/ is decreasing speed of ring wall thickness, the value equals to the feed speed of screw down , (5) Equation (1) – (4) indicate: the preliminary dimensions and feed speed are main factors affecting the increasing movement of ring diameter.
The common mechanical feed in system includes worm feed in, cam feed in and ball screw feed in etc. modes.
Ball screw has high efficiency, high positioning precision, drive reversing, long lift time, good synchronization properties.
Control with high properties ring mill by fully digital AC frequency conversion drive system of Siemens Company.
Online since: May 2011
Authors: De Li Zhang, Rui Shao, Cheng Wei Huang
On the other hand, because prestressed cable offset arch thrust, it give full play to the advantage of arch structures and steel force Tensile properties of high strength cable.
In the premise of ensuring full performance of tensile properties of the bottom of cable the string structure use rigid component which have pressive and resisting bend strength.
The effects of parameters such as paper by adjusting the design parameters, analysis of above parameters chord-tension truss structure static properties.
The structure static properties of the prestressed variation.The calculated results and relation curves as shown.
Vertical span ratio is affects to truss string structure static performance which is one of the important factors, the calculation results shown as shown in figure 7.
In the premise of ensuring full performance of tensile properties of the bottom of cable the string structure use rigid component which have pressive and resisting bend strength.
The effects of parameters such as paper by adjusting the design parameters, analysis of above parameters chord-tension truss structure static properties.
The structure static properties of the prestressed variation.The calculated results and relation curves as shown.
Vertical span ratio is affects to truss string structure static performance which is one of the important factors, the calculation results shown as shown in figure 7.
Online since: May 2011
Authors: José Ignacio Pérez-Landazábal, Vicente Recarte, Vicente Sánchez-Alarcos
Influence of Long-Range Atomic Order on the Structural and Magnetic Properties of Ni-Mn-Ga Ferromagnetic Shape Memory Alloys
V.
In parallel, an exhaustive research for new FSMA showing better magneto-mechanical properties than Ni-Mn-Ga alloys has been also carried out [11].
As mentioned above, such thermal treatments considerably affect the structural and magnetic properties of Ni-Mn-Ga alloys due to the modification of the atomic order.
Likewise, magnetic properties such as the saturation magnetization (MS) of the martensitic phase are also considerably affected by the quenching temperature.
The L21 atomic order variation taking place as a result of the consecution of the post-quench ordering process also affects the structural and magnetic properties of Ni-Mn-Ga alloys.
In parallel, an exhaustive research for new FSMA showing better magneto-mechanical properties than Ni-Mn-Ga alloys has been also carried out [11].
As mentioned above, such thermal treatments considerably affect the structural and magnetic properties of Ni-Mn-Ga alloys due to the modification of the atomic order.
Likewise, magnetic properties such as the saturation magnetization (MS) of the martensitic phase are also considerably affected by the quenching temperature.
The L21 atomic order variation taking place as a result of the consecution of the post-quench ordering process also affects the structural and magnetic properties of Ni-Mn-Ga alloys.
Online since: January 2011
Authors: Dong Jie Li, Wei Bin Rong, Li Ning Sun, Wan Zhe Xiao
In addition, for the purpose of operating nano components in different dimensional properties, terminal working tools in different structure and function are adopted.
Meanwhile, as there are unstable factors and oscillation between master and slave terminal, the IVC algorithm discussed in next Section will be activated to guarantee stability.
Zci and β are the virtual coupling impedance and the enhancement factor, respectively.
Micro Electro Mechanical Systems, (1990), p. 115-119
Brown: Factors Affecting the Width of a Haptic Display, in Proc.
Meanwhile, as there are unstable factors and oscillation between master and slave terminal, the IVC algorithm discussed in next Section will be activated to guarantee stability.
Zci and β are the virtual coupling impedance and the enhancement factor, respectively.
Micro Electro Mechanical Systems, (1990), p. 115-119
Brown: Factors Affecting the Width of a Haptic Display, in Proc.
Online since: September 2009
Authors: Yu Can Fu, Jiu Hua Xu, Wen Guo Huo
Unfortunately, the unique physical and chemical properties that make these alloys
suitable for many applications also result in the difficulty to cut or ground.
During grinding using the abrasive wheels, which has been one of the most popular processes for titanium alloys, short wheel life and severe surface abuse of ground workpiece are the important factors impairing their grindability.
It is well known that the surface roughness can significantly affect the mechanical strength of components when they are subjected to fatigue cycles.
Cross-section metallographic structure images of grinding surface are shown in Fig.6a, about 15µm heat affected zone can be observed on the cross-section of ground surface, however, due to the brought high grinding zone temperature by big grinding parameter, about 35µm, in Fig.6b.
Wallbank: Proceedings of the Institution of Mechanical Engineers, Vol. 204 (1990), pp.53-60
During grinding using the abrasive wheels, which has been one of the most popular processes for titanium alloys, short wheel life and severe surface abuse of ground workpiece are the important factors impairing their grindability.
It is well known that the surface roughness can significantly affect the mechanical strength of components when they are subjected to fatigue cycles.
Cross-section metallographic structure images of grinding surface are shown in Fig.6a, about 15µm heat affected zone can be observed on the cross-section of ground surface, however, due to the brought high grinding zone temperature by big grinding parameter, about 35µm, in Fig.6b.
Wallbank: Proceedings of the Institution of Mechanical Engineers, Vol. 204 (1990), pp.53-60