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Online since: July 2011
Authors: Dong Wei Li, Ju Hong Fan, Ren He Wang
Introduction
The former Soviet union scholars C.C Vyalov etc. through the simulation tests of frozen sidewall found that: Because of permafrost has strong rheological properties, the frozen wall over time to develop the large creep deformation may also cause frozen tube fracture before the frozen wall damaged and lost the bearing capacity.
Frozen soil creep is always the forefront question in the mechanical issues, identifying the creep index and forecasting creep model of frozen soil are two large tasks in the creep test study.
During this period, the creep properties also got enough attention in the design of artificial frozen wall (Radd, 1978).
In the test, load and displacement and deformation, confining pressure and wave over time were acquainted and stored automatically, and these provided a reliable basis for the study of three-axis mechanical properties of artificially frozen soil samples.
From the typical relationship (Figure 2) between creep rate and time in different confining pressure and frozen temperatures we knew that: the strength of artificially frozen soil is one of main factors affected creep in different freezing temperatures.
Frozen soil creep is always the forefront question in the mechanical issues, identifying the creep index and forecasting creep model of frozen soil are two large tasks in the creep test study.
During this period, the creep properties also got enough attention in the design of artificial frozen wall (Radd, 1978).
In the test, load and displacement and deformation, confining pressure and wave over time were acquainted and stored automatically, and these provided a reliable basis for the study of three-axis mechanical properties of artificially frozen soil samples.
From the typical relationship (Figure 2) between creep rate and time in different confining pressure and frozen temperatures we knew that: the strength of artificially frozen soil is one of main factors affected creep in different freezing temperatures.
Online since: October 2025
Authors: Panidpim Sawangbunditkun, Robert Peyroux, Itthichai Preechawuttipong
Relative humidity plays a crucial role in influencing the physical, mechanical, and durability properties of natural materials.
We expect that the test results will offer valuable insights into the material's properties and its potential applications.
Sensitivity of bamboo fiber longitudinal tensile properties to moisture content variation under the fiber saturation point.
Mechanical Properties of Bamboo on Virgin and Recycled High-Density Polyethylene Matrix.
Study on the variation law of bamboo fibers’ tensile properties and the organization structure on the radial direction of bamboo stem.
We expect that the test results will offer valuable insights into the material's properties and its potential applications.
Sensitivity of bamboo fiber longitudinal tensile properties to moisture content variation under the fiber saturation point.
Mechanical Properties of Bamboo on Virgin and Recycled High-Density Polyethylene Matrix.
Study on the variation law of bamboo fibers’ tensile properties and the organization structure on the radial direction of bamboo stem.
Online since: October 2011
Authors: Jia Long Ren, Jin Jing Ren, Yan Wang, Feng Lei Yu
This cutting heat can cause the deformation and wear of the work piece and the cutting tool, and affects machining quality finally.
The volatility of lubricating oil in the cutting area is relieved with brilliant cooling effect which at the same time improves lubrication, so that the whole effect factors cause in the cutting process tends to be a virtuous circle.
As the different physical properties, mechanical properties and relative processing of GH4169, TC4 and Cr12, their effects of reducing the cutting forces vary, but the overall trend is consistent.
China Mechanical Engineering 2000, (11) 7:738-740.In chinese
Mechanical 2000, (27) 3.
The volatility of lubricating oil in the cutting area is relieved with brilliant cooling effect which at the same time improves lubrication, so that the whole effect factors cause in the cutting process tends to be a virtuous circle.
As the different physical properties, mechanical properties and relative processing of GH4169, TC4 and Cr12, their effects of reducing the cutting forces vary, but the overall trend is consistent.
China Mechanical Engineering 2000, (11) 7:738-740.In chinese
Mechanical 2000, (27) 3.
Online since: April 2013
Authors: Jian Wu, You Shan Wang, Qiang Liu
Finite element method was applied to tire mechanical analysis, temperature field and rolling resistance analysis.
Constitutive model of rubber material The rheological characteristics (viscosity, viscoelasticity) were shown in tire rubber extrusion processing due to the flowing under the action of high temperature and pressure, which were related to many factors such as temperature, pressure, composition [6].
Constitutive model of rubber rheological properties is the basis of the finite element analysis.
Researches on rubber rheological properties are little due to its complex, which is non-Newtonian fluid.
[6] N.sombatsompop, A Survey of Rheological Properties of Polymer Melts in Capillary Rheometers, Progress in Rubber and Plastics Technology. 15(1999) 47-68
Constitutive model of rubber material The rheological characteristics (viscosity, viscoelasticity) were shown in tire rubber extrusion processing due to the flowing under the action of high temperature and pressure, which were related to many factors such as temperature, pressure, composition [6].
Constitutive model of rubber rheological properties is the basis of the finite element analysis.
Researches on rubber rheological properties are little due to its complex, which is non-Newtonian fluid.
[6] N.sombatsompop, A Survey of Rheological Properties of Polymer Melts in Capillary Rheometers, Progress in Rubber and Plastics Technology. 15(1999) 47-68
Online since: February 2014
Authors: Mohamad Hafiz Mamat, Mohd Hanafiah Abidin, Nik Noor Hafizah Nik Mohammad, Che Mohd Som Said, Mohamad Rusop
The different amounts of TiO2 particles in the composite affect the structural properties of the composite samples where the cracks of the films morphology also increases as TiO2 amount in PMMA increased.
Based on the previous study, the good dispersion of TiO2 filler in the PMMA will contribute to the increase in the thermal and mechanical properties of the composite sample [11, 12].
It is believe that the well dispersion of TiO2 in PMMA can contribute to the increase the properties of the composite.
Skafidas, "Permittivity properties of thermally treated TiO2," Materials Letters, vol. 58, pp. 1502– 1507, 2004
Rusop,, "The Effect of Self-prepared TiO2 Amount in the Milling Process on the Structural Properties of Anatase TiO2 Nanopowder," Jurnal Teknologi, vol. 59, pp. 41–45, 2012
Based on the previous study, the good dispersion of TiO2 filler in the PMMA will contribute to the increase in the thermal and mechanical properties of the composite sample [11, 12].
It is believe that the well dispersion of TiO2 in PMMA can contribute to the increase the properties of the composite.
Skafidas, "Permittivity properties of thermally treated TiO2," Materials Letters, vol. 58, pp. 1502– 1507, 2004
Rusop,, "The Effect of Self-prepared TiO2 Amount in the Milling Process on the Structural Properties of Anatase TiO2 Nanopowder," Jurnal Teknologi, vol. 59, pp. 41–45, 2012
Online since: September 2013
Authors: Jian Feng Zhu, Xing Chen Wang, Ri Qing Xu
The strength properties of soil are affected directly by the physical parameters [2-3].
As for remolded saturated clays, the two physical parameters, initial void ratio and plasticity index, which represent the condition and the type of soils respectively, can almost determine their mechanical properties [4].
Therefore, it is necessary to simultaneously consider both the factors for the peak shear strength parameters.
Basic physical properties of soil were determined and their values are presented in Table. 1.
Soil Physical Properties as Predictors of Soil Strength Indices: Trinidad Case Study.
As for remolded saturated clays, the two physical parameters, initial void ratio and plasticity index, which represent the condition and the type of soils respectively, can almost determine their mechanical properties [4].
Therefore, it is necessary to simultaneously consider both the factors for the peak shear strength parameters.
Basic physical properties of soil were determined and their values are presented in Table. 1.
Soil Physical Properties as Predictors of Soil Strength Indices: Trinidad Case Study.
Online since: February 2013
Authors: Wei Wei, Yi Li, Mao De Li
The heat will not only deteriorate its components (electrodes, current collector, separator film etc.) resulting in its capacity fading and life shrinking, but also affect vehicle performance and cycle life of HEV in the automotive field.
In this article, the author analyzes battery heat generation and its influence factors, establishes heat transfer model and carries out numerical computation based on experimental data of battery properties.
Physical Property Parameters Battery internal resistance will not be a constant during charging or discharging when its internal temperature and capacity vary.
In the process of solving the thermal model, specific heat affects the accuracy of experimental results.
Analysis of the reason may be the other properties of the batteries would also change with temperature and SOC.
In this article, the author analyzes battery heat generation and its influence factors, establishes heat transfer model and carries out numerical computation based on experimental data of battery properties.
Physical Property Parameters Battery internal resistance will not be a constant during charging or discharging when its internal temperature and capacity vary.
In the process of solving the thermal model, specific heat affects the accuracy of experimental results.
Analysis of the reason may be the other properties of the batteries would also change with temperature and SOC.
Online since: December 2011
Authors: Jürgen Hirsch
In these cases industrial processing of Aluminium alloys is specifically designed to control textures to achieve superior anisotropic properties and so better meet special product requirements.
Examples are given for resulting properties, like strength and formability / anisotropy effects in packaging and automotive sheet applications.
This includes the effect on material properties like strength, formability and surface effects (e.g. /10-15/).
They are observed on surface structures of big DC-casted ingots after scalping, but not reported to have any detrimental effects on properties after subsequent thermo-mechanical processing
In these case no directionality of properties occurs and needs to be considered.
Examples are given for resulting properties, like strength and formability / anisotropy effects in packaging and automotive sheet applications.
This includes the effect on material properties like strength, formability and surface effects (e.g. /10-15/).
They are observed on surface structures of big DC-casted ingots after scalping, but not reported to have any detrimental effects on properties after subsequent thermo-mechanical processing
In these case no directionality of properties occurs and needs to be considered.
Online since: March 2004
Authors: Joo Sun Kim, Jong Ho Lee, Hai Won Lee, Geon Ja Lim, Sang Hoon Hyun
The
efficiency of the slurry during CMP process was known to be decided by the type and properties of
abrasive, pH, and the stability of slurry, etc [8].
The diluent covers the surface of precursor during mechanical milling and therefore also improves the pulverizing efficiency by blocking the mechanical contact between precursors.
From Fig.5, it can be concluded that the finer abrasive causes the higher removal rate of SiO2 and it means the contacting area between abrasive and oxide film is more important factor for the removal of SiO2.
On the other hand, the indentation effect by coarser particle should more seriously affect the Fig. 3.
Iler: The Chemistry of Silica; Solubility, Polymerization, Colloid and Surface properties, and Biochemistry (John Wiley & Sons Inc., New York 1979)
The diluent covers the surface of precursor during mechanical milling and therefore also improves the pulverizing efficiency by blocking the mechanical contact between precursors.
From Fig.5, it can be concluded that the finer abrasive causes the higher removal rate of SiO2 and it means the contacting area between abrasive and oxide film is more important factor for the removal of SiO2.
On the other hand, the indentation effect by coarser particle should more seriously affect the Fig. 3.
Iler: The Chemistry of Silica; Solubility, Polymerization, Colloid and Surface properties, and Biochemistry (John Wiley & Sons Inc., New York 1979)
Online since: July 2006
Authors: Dun Wen Zuo, Duo Sheng Li, Li Gang Zhao, Rong Fa Chen, Bing Kun Xiang
DC-Plasma arc behavior is one of the key factors on growth of diamond film.
Plasma arc behavior was a key factor on influencing H*.
They affects quality of diamond film, as Fig.3(a).
Wang: China Mechanical Engineering, Vol.18 (2004), pp.1676-1678
Zhang and et al: China Mechanical Engineering, Vol.4 (2004), pp.435-436.
Plasma arc behavior was a key factor on influencing H*.
They affects quality of diamond film, as Fig.3(a).
Wang: China Mechanical Engineering, Vol.18 (2004), pp.1676-1678
Zhang and et al: China Mechanical Engineering, Vol.4 (2004), pp.435-436.