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Online since: October 2014
Authors: Qi You Cheng, Jian Ping Huang, Ai Min Ling, Zhi Zhuang Feng
Therefore, it is important to understand the effects of resin content on the mechanical properties of composites.
The results show that the resin content has a great effect on the mechanical properties of carbon fabric/epoxy composites.
The investigation mentioned indicated that the resin content influence several mechanical properties, e.g., longitudinal compressive modulus and strength, transverse tensile modulus and strength, and bending and shear properties.
is a load multiplier or buckling factor.
Effect of the Resin Content on the mechanical Properties of Carbon Fabric/Epocy Composites[J].FIBERCOMPOSITES, 2003,[3]:15-17.
The results show that the resin content has a great effect on the mechanical properties of carbon fabric/epoxy composites.
The investigation mentioned indicated that the resin content influence several mechanical properties, e.g., longitudinal compressive modulus and strength, transverse tensile modulus and strength, and bending and shear properties.
is a load multiplier or buckling factor.
Effect of the Resin Content on the mechanical Properties of Carbon Fabric/Epocy Composites[J].FIBERCOMPOSITES, 2003,[3]:15-17.
Online since: November 2020
Authors: Mohammad Mahinzare, Sadegh Sadeghzadeh
By implementing the modified couple stress theory and also molecular dynamics, Mohammadi et al. [38] have investigated the properties of a micro conical shell resting on a Winkler foundation.
These properties of NSGT have motivated the researchers to apply it to many problems which were studied before by other theories.
Table 1 summarizes the material properties of the considered FG material.
The excitation of a rotating nanoshell seriously affects its resonance.
Agwa, Analysis of size-dependent mechanical properties of CNTs mass sensor using energy equivalent model, Sensors and Actuators A: Physical 246 (2016) pp. 9-17
These properties of NSGT have motivated the researchers to apply it to many problems which were studied before by other theories.
Table 1 summarizes the material properties of the considered FG material.
The excitation of a rotating nanoshell seriously affects its resonance.
Agwa, Analysis of size-dependent mechanical properties of CNTs mass sensor using energy equivalent model, Sensors and Actuators A: Physical 246 (2016) pp. 9-17
Online since: February 2012
Authors: Yusuf Şahin, K.Emre Öksüz, M. Şimşir
Abrasive wear of materials is influenced by many factors such as properties of materials, operating conditions, geometry of wearing bodies, and environmental conditions [15, 16].
The results are not good agreement to Rabinowichz's theory [17] because it claims that hardness and applied load are the most important factors affecting the abrasion process.
It can be seen that the strongest influence occurred by factor Land factor D, respectively.In a similar way,for the diamond+SiCp-reinforced MMCs, the factor L and the factor D have strong effect on the abrasive wear of the composite, but the factor S has the least effect on the wear of it. 3.2 Multiple linear regression models To establish the correlation between the material properties and wear properties like load, sliding distance and sliding speed, multiple linear regression modelson the weight loss (WL) is obtained using statistical software“Minitab15”.
Faga, Surface properties of diamond coating for cutting tools, Annals of the CIRP 56 (2007) 573-578
Wang, Y.Guan andY.Z.Zheng, Properties and applications of Ti-coated diamond grits Mater Process Tech.,120 (2002) 369-373
The results are not good agreement to Rabinowichz's theory [17] because it claims that hardness and applied load are the most important factors affecting the abrasion process.
It can be seen that the strongest influence occurred by factor Land factor D, respectively.In a similar way,for the diamond+SiCp-reinforced MMCs, the factor L and the factor D have strong effect on the abrasive wear of the composite, but the factor S has the least effect on the wear of it. 3.2 Multiple linear regression models To establish the correlation between the material properties and wear properties like load, sliding distance and sliding speed, multiple linear regression modelson the weight loss (WL) is obtained using statistical software“Minitab15”.
Faga, Surface properties of diamond coating for cutting tools, Annals of the CIRP 56 (2007) 573-578
Wang, Y.Guan andY.Z.Zheng, Properties and applications of Ti-coated diamond grits Mater Process Tech.,120 (2002) 369-373
Online since: April 2013
Authors: Bryan Kweh King Yap, Low Hock Heng
Factors that have facilitated international technology transfer include globalization of business, liberalization of the economic regimes of many countries, and the impetus given to the protection of intellectual property after the formation of the World Trade Organization (WTO) Ramanathan [2].
The main objective of this study is to identify the factors that influencing the validation process and the impact of those factors toward validation process at pharmaceutical and manufacturing industry.
Influence factors of pharmaceutical process validation.
Influence factors of pharmaceutical process validation.
Process Mechanical Engineering, (2003)
The main objective of this study is to identify the factors that influencing the validation process and the impact of those factors toward validation process at pharmaceutical and manufacturing industry.
Influence factors of pharmaceutical process validation.
Influence factors of pharmaceutical process validation.
Process Mechanical Engineering, (2003)
Online since: October 2010
Authors: Mei Zhou, Xiao Ming Yang, Kun Song
From the aspect of sample size of mathematical modeling, we chose four factors.
Then we got 14 model factors including six kinds of possible interaction and four kinds of possible acceleration.
But the crumb rubber plastic concrete is a kind of composite material, the interaction of different factors must affect the concrete performance consequently, we must consider all of the influencing factors to make our work have more research significance.
The mechanical analysis of effect of the main influencing factors to crumb rubber plastic concrete elastic modulus (1)cement is the main active ingredient of concrete.
Because the plastic concrete is a kind of hererogeneous multi-phase material, the density and the volume percentage of its component and the transition zone properties determine its flexibility characteristic.
Then we got 14 model factors including six kinds of possible interaction and four kinds of possible acceleration.
But the crumb rubber plastic concrete is a kind of composite material, the interaction of different factors must affect the concrete performance consequently, we must consider all of the influencing factors to make our work have more research significance.
The mechanical analysis of effect of the main influencing factors to crumb rubber plastic concrete elastic modulus (1)cement is the main active ingredient of concrete.
Because the plastic concrete is a kind of hererogeneous multi-phase material, the density and the volume percentage of its component and the transition zone properties determine its flexibility characteristic.
Online since: May 2012
Authors: Zheng Zhong Ma, Xiang Xu, Yun Han Xiao
Moreover, the influences of the particle properties such as particle size and particle moisture content on the feeding rate are also investigated.
In analyzing the influence factors of feeding performance, the study in last twenty years has generally focused on the particle properties such as size, shape, surface structure, moisture content.
However, the flow behavior of particles is a complicated problem, as it is decided by particle physical properties, operation condition and the feeder [8-10].
, fill ratio and other factors.
In addition, screw parameters and particle properties should be considered for feeder designer.
In analyzing the influence factors of feeding performance, the study in last twenty years has generally focused on the particle properties such as size, shape, surface structure, moisture content.
However, the flow behavior of particles is a complicated problem, as it is decided by particle physical properties, operation condition and the feeder [8-10].
, fill ratio and other factors.
In addition, screw parameters and particle properties should be considered for feeder designer.
Online since: December 2009
Authors: M. Hosseinpour Gollo, G.H. Liaghat, M.J. Torkamany, S. Jelvani, Hassan Moslemi Naeini
A
numerical model is proposed for simulating the laser forming process: it includes nonlinear
transient thermal and structural analysis and accounts for the temperature dependency of the
thermal and mechanical properties of the maerial.
Material properties.
Thermal properties (Thermal conductivity, specific heat and convective heat transfer) and Mechanical property (elasticity modulus, Poisson ratio, density and yield stress) are temperature dependent[8] [9].
Data Analysis Effect of factors on bending angle.
Main effects plot of factors can be used to draw a draft conclusion about effects of factors.
Material properties.
Thermal properties (Thermal conductivity, specific heat and convective heat transfer) and Mechanical property (elasticity modulus, Poisson ratio, density and yield stress) are temperature dependent[8] [9].
Data Analysis Effect of factors on bending angle.
Main effects plot of factors can be used to draw a draft conclusion about effects of factors.
Online since: September 2011
Authors: Li Xin Fu, Bo Chen, Hui Ren
Engineering Properties
The Engineering Properties of Tunnel Portal
Deluvial surrounding rock consists of boulder, cobble, silty mudstone in Xigeda strata or heavy weathered granite.
The Engineering Properties of Xigeda Strata Xigeda stratas, the well-known Late Cenozoic strata, locate in river valleys of Jinsha river, as well as its branches Anning river, Dadu river and Yalong river in the southwest of China.
The Influence of Water on Xigeda Strata‘s Physical Mechanical Property The direct shear test results and the physical mechanical parameter of rocks with different water ratios are showed in the following diagram.
From the physical mechanical properties of Xigeda Strata, we infer that cracks in the side and heading slope are typically pull-type slide and collapse.
(2) The hydrologic condition at the portal is bad, so under the influence of water percolation, Xigeda strata’s load-carrying properties and shear strength reduce dramatically.
The Engineering Properties of Xigeda Strata Xigeda stratas, the well-known Late Cenozoic strata, locate in river valleys of Jinsha river, as well as its branches Anning river, Dadu river and Yalong river in the southwest of China.
The Influence of Water on Xigeda Strata‘s Physical Mechanical Property The direct shear test results and the physical mechanical parameter of rocks with different water ratios are showed in the following diagram.
From the physical mechanical properties of Xigeda Strata, we infer that cracks in the side and heading slope are typically pull-type slide and collapse.
(2) The hydrologic condition at the portal is bad, so under the influence of water percolation, Xigeda strata’s load-carrying properties and shear strength reduce dramatically.
Online since: January 2010
Authors: Norio Maruyama
A fretting fatigue test method in a simulated body fluid is shown to evaluate fatigue properties of
metallic materials which are used in the orthopaedics field.
Living Body Environment For mechanical tests of biomedical metallic materials, the living body environment should be taken account of.
Mechanical factors affecting the fretting properties include coefficient of friction, pressing force and amount of relative slip.
From a mechanical viewpoint, cyclic shear stress on the specimen surface is a major factor that nucleates fretting fatigue cracks.
The region affected by fretting is limited to the shallow surface layers.
Living Body Environment For mechanical tests of biomedical metallic materials, the living body environment should be taken account of.
Mechanical factors affecting the fretting properties include coefficient of friction, pressing force and amount of relative slip.
From a mechanical viewpoint, cyclic shear stress on the specimen surface is a major factor that nucleates fretting fatigue cracks.
The region affected by fretting is limited to the shallow surface layers.
Online since: October 2010
Authors: Cheng Yong Wang, Yun Ping Cheng, Ying Ning Hu, Wei Zheng Si
The depth of grinding, feed speed and grinding speed are three
independent factors affecting grinding force [4].
In Ref.4 we had measured the grinding force and considered that feed speed was the major factor affecting grinding force.
Surface roughness is an important factor that shows the surface auality of ceramic tile, so surface roughness Ra of edges must be measured after grinding.
As a result, lower surface roughness of ceramic tile can be obtained by reducing the depth of grinding and adding the groups of diamond cup wheels in actual production. 50µm 50µm 50µm a. ap=0.4mm b. ap=0.5mm c. ap=0.6mm Fig.6 The surface morphology of polished ceramic tile in different ap Conclusions Although many problems in the surface properties of polished ceramic tiles need to be studied further, some results can be provided as follows
The depth of grinding and feed speed affect the surface roughness Ra of ceramic tile.
In Ref.4 we had measured the grinding force and considered that feed speed was the major factor affecting grinding force.
Surface roughness is an important factor that shows the surface auality of ceramic tile, so surface roughness Ra of edges must be measured after grinding.
As a result, lower surface roughness of ceramic tile can be obtained by reducing the depth of grinding and adding the groups of diamond cup wheels in actual production. 50µm 50µm 50µm a. ap=0.4mm b. ap=0.5mm c. ap=0.6mm Fig.6 The surface morphology of polished ceramic tile in different ap Conclusions Although many problems in the surface properties of polished ceramic tiles need to be studied further, some results can be provided as follows
The depth of grinding and feed speed affect the surface roughness Ra of ceramic tile.