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Online since: March 2006
Authors: Hyung Kyu Kim, Young Ho Lee, Youn Ho Jung
This phenomenon is generally affected by the mechanical variables (slip amplitude, applied normal load, etc.) and the service environments (i.e. lubricant conditions).
Especially, the wear behavior in a water lubricant condition is sensitively affected by the material/mechanical properties such as a changed hardness of the contacting surfaces, subsurface deformation, etc [1,2].
This is closely related to a variation of the wear properties between the fuel rod and the supporting spring because the behavior of the generated wear particles on the worn surface affects the worn area expansion.
The chemical composition and mechanical properties are listed in Tables 1 and 2.
Mechanical properties of the tested Zirconium alloy Temperature Yield strength (MPa) Tensile strength (MPa) Elongation (%) 25℃ 565 807 17 Wear Tester.
Online since: July 2015
Authors: Alexander Belyaev, Vladimir Polyanskiy, Yuri A. Yakovlev
The minimum safety coefficient for strength leads to the necessity of exact calculation with account for all factors during the structure exploitation.
As a rule, the mechanical properties of material are degenerated after the hydrogen concentration has increased.
It is very dangerous because the hydrogen concentration strongly correlates with the mechanical properties.
We suppose that the mechanical properties of continuum degrade due to this interaction.
Theoretical Model for the Hydrogen-Material Interaction as a Basis for Prediction of the Material Mechanical Properties.
Online since: October 2015
Authors: Jun Wang, Feng Qin Yu
They affect the dimension stability, mechanical property, deformation and etc.
They affects the dimension stability, mechanical property, deformation and etc.
Above all, the errors mainly come from the experiment errors and material thermodynamic properties errors.
Improve the Full Length Quenched Rail Properties with Jetting Air Cooling[J].
Touloukian.Thermo-physical Properties of Matter [M].
Online since: January 2013
Authors: Yu Mei Gong, Jing Guo, Hong Zhang, Qian He Chen, Yu Yan Zhang
In addition, the thermal property of composite fibers is steady.
In order to analyze the mechanical properties of composite fibers, the fibre tensile strength tester was used.
Fig.1 lgτ-lgγ curve of spinning solution Characterization and analysis of spinning process and composite fibers Table.1 shows the best combination of composite fiber strength is A1B1C3D4E2; primary and secondary factors are ACDBE orderly.
The mechanical properties are good and there are no skin-core structures when the concentration and temperature of coagulation bath are comparatively lower.
In addition, the thermal property of composite fibers is steady.
Online since: January 2014
Authors: Lian Guang Wang, Jia Yang, Wen Yu Hou
The interfacial slip between fiber reinforced polymer (FRP) and concrete beam is one of the key factors to affect the behaviors of FRP plate strengthened RC beams.
Previous studies have shown that the mechanical properties and failure mechanism of strengthened member are closely related to bond performance of FRP-concrete interface.
At present, many domestic and foreign experts and scholars put forward the method which used FRP sheets or plates to strengthen structures and research on its debonding failure modes and mechanical behavior [1-7].
Under external loading, the relative slip occurred on the interface between FRP plate and concrete causes the redistribution of stress and then influences mechanical behavior of component.
Analytical Model Basic Assumptions According to the characteristics and mechanical behavior of FRP plate strengthened RC beams, we make the following assumptions for simplicity of the problems before starting the derivations: 1.
Online since: November 2010
Authors: Qin Qin, Di Ping Wu, Yong Zang, Jing Jing Li
The material used in the model is Q235 and mechanics properties were selected according to references [7, 8].
Influence Factors of Web Thickening.
In order to analyze the influence factors of web thickening, the H-beam with the web of 75mm and the flange of 355mm for entry thickness was selected according to the rolling results of the second pass.
It is an important factor to lead to increase the rolling force.
It is well-known that the rolling reduction is an important factor to affect rolling force.
Online since: September 2011
Authors: Jun Ru Yang, X.F. Wang, C.Z. Huang, Z.Q. Li, G.C. Wang
Let KIx01 and KIIx01 be the stress intensity factors of the branch crack tip.
With Eq.3, KIx01 and KIIx01 are [4], , (4) Where, KIx1 and KIIx1 are stress intensity factors of I and II models of the main crack in the clad respectively.
Let KIx02 and KIIx02 be the stress intensity factors of the branch crack tip.
Secondly, bring the calculated stress intensity factors of the interface crack into Eq.7 and 8, the parameters of Gx1max and Gx2max can be obtained separately.
Shandong University, 2002) (in Chinese) [7] Edit Committee of Handbook of Property Data of Materials for Mechanical Engineering: Handbook of Property Data of Materials for Mechanical Engineering (Mechanical Industry Press, China 1995) (in Chinese) [8] F.T.
Online since: August 2012
Authors: Yun Cang Li, Cui'e Wen
Mechanical tests Cylindrical solid and porous alloy samples were compressively tested to examine the mechanical properties.
The mechanical properties of the solid Ti4Ta4Sn alloy were measured by compressive tests.
Cytotoxicity of Ti4Sn4Sn Biocompatibility is a prime factor that affects the in vivo performance of an implant.
These mechanical properties are close to those of natural bone.
Wen, Nano- and macro-scale characterisation of the mechanical properties of bovine bone, Materials Forum 31(2007) 156-159
Online since: January 2010
Authors: Shang Yue Shen, Shan Hu, Hong Chang Han
The effect of graphite content on the electrical properties of the piezoelectric composites was investigated.
The piezoelectric constant d33 of the composites is affected obviously by the graphite.
The dependence of electromechanical coupling coefficient Kp and the mechanical quality factor Qm of the composites with graphite content are shown in Fig.6.The maximum value of Kp, 0.288, was obtained when graphite content was 0.6 wt %.
The results suggest that the coupling effect between mechanical energy and electric energy strengthen because of the increase of poling properties with a small amount of graphite, but excess graphite make it difficult to pole composites and Kp value decrease.
As seen in Fig.6, the mechanical quality factor Qm increased monotonously from19 to 23.
Online since: November 2012
Authors: Wei Wang, Wan Chun Li, Wei Yan
In this analysis, the effect of the interfacial properties between the piezoelectric patches and the host structure on the EMI signatures is considered and thus a coupled structural system consisting of PZT patches, bonding layer and host structure is then investigated.
The effects of various parameters including the material properties of the adhesive, the crack depth and the crack position etc. on the EMI signatures are highlighted.
On the other hand, due to high frequency excitation used in EMI method, minor defects between the PZT patches and the host structure may influence the output EMI signatures significantly [3] and thus the interfacial properties should be considered carefully.
The material properties [6] of PZT wafer and the host structure as well as the adhesive are listed in Table 1 and 2, respectively.
The further parametric study indicates that some parameters such as the crack depth and position affect remarkably EMI signatures.
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