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Online since: October 2014
Authors: Fadhluhartini Muftah, Muhammad Isha Ismail, Marzuki Ab. Rahman, Mohd Syahrul Hisyam Mohd Sani
A total 72 cubes mortar is cast and determined their properties of chemical and mechanical.
The first part deals to chemical properties of the WPSA and BA and second part is evaluated the mechanical properties especially the compression strength of the mortar.
Quantity of cement is the factors that affected the reactivity of aggregate.
Du, Use of Waste Glass as Sand in Mortar: part I – Fresh, Mechanical and Durability Properties, Cement and Concrete Composite. 35 (2013) 109 -117
Prince, Physical and Mechanical Properties of Mortars Containing PET and PC Waste Aggregates, Waste Management. 30 (2010) 2312 – 2320
The first part deals to chemical properties of the WPSA and BA and second part is evaluated the mechanical properties especially the compression strength of the mortar.
Quantity of cement is the factors that affected the reactivity of aggregate.
Du, Use of Waste Glass as Sand in Mortar: part I – Fresh, Mechanical and Durability Properties, Cement and Concrete Composite. 35 (2013) 109 -117
Prince, Physical and Mechanical Properties of Mortars Containing PET and PC Waste Aggregates, Waste Management. 30 (2010) 2312 – 2320
Online since: June 2014
Authors: Berend Denkena, Tanja Spremberg, Ingo Engler
The reduction of the run-in period affects the wear during the motor life time.
Introduction The approach to reduce environmental key factors such as CO2-emission or fuel consumption forces automotive suppliers, such as the Robert Bosch GmbH, to continuously improve their products towards efficiency [1].
According to Möckel et al. the factors mechanical wear and electromechanical wear have an optimum, depending on the contact pressure between brush and commutator [3].
Though the material properties, the load spectrum, temperature as well as the contact pressure affect the steady state roughness.
The other factors current and voltage flow, the revolutions per minute of the armature and the run time to standstill change significantly at that stage.
Introduction The approach to reduce environmental key factors such as CO2-emission or fuel consumption forces automotive suppliers, such as the Robert Bosch GmbH, to continuously improve their products towards efficiency [1].
According to Möckel et al. the factors mechanical wear and electromechanical wear have an optimum, depending on the contact pressure between brush and commutator [3].
Though the material properties, the load spectrum, temperature as well as the contact pressure affect the steady state roughness.
The other factors current and voltage flow, the revolutions per minute of the armature and the run time to standstill change significantly at that stage.
Theoretical and Numerical Analysis on the Static-Loaded Contact Pressure of Mechanical Elastic Wheel
Online since: August 2014
Authors: You Qun Zhao, Xiao Long Li, Ming Jie Zhang
The contact pressure between the wheel and ground is one of the important factors which affect the driving and handling performance of the car.
Thus the contact pressure research of MEW is significant and it guides the mechanical property research of MEW.
Table 1 Material Properties of MEW Model Structural Parts Young's Modulus E/[GPa] Poisson's Ratio μ Mooney-Rivilin Coefficient C10 C01 Skeleton 180 0.4 - - Elastic - - 0.5667 2.2667 Tread - - 0.3203 1.2813 The hinges and hub are approximately regarded as rigid bodies which only transfer forces.
Referring to the relevant material properties in references [3] and regardless of the anisotropic material, the main material selections of the MEW model is shown in table 1.
Cobert: SAE International Journal of Passenger Cars-Mechanical Systems, Vol. 4 (2011) No. 1, p.32
Thus the contact pressure research of MEW is significant and it guides the mechanical property research of MEW.
Table 1 Material Properties of MEW Model Structural Parts Young's Modulus E/[GPa] Poisson's Ratio μ Mooney-Rivilin Coefficient C10 C01 Skeleton 180 0.4 - - Elastic - - 0.5667 2.2667 Tread - - 0.3203 1.2813 The hinges and hub are approximately regarded as rigid bodies which only transfer forces.
Referring to the relevant material properties in references [3] and regardless of the anisotropic material, the main material selections of the MEW model is shown in table 1.
Cobert: SAE International Journal of Passenger Cars-Mechanical Systems, Vol. 4 (2011) No. 1, p.32
Online since: December 2013
Authors: Safian Sharif, Faiz Ahmad, Tze Keong Woo, Mohd Azuwan Maoinser
The delamination and damage factor exhibit during the drilling of GFRP cannot be ignored as it significant reduce the mechanical properties and further influence its reliability in application.
Due to the nature and properties of glass fiber, the use of coolant is not suitable.
High temperature generated by the friction between the tool bit and the work piece will change the mechanical properties of the GFRP [6].
The fabricated samples were tested for its mechanical properties.
It is very crucial to produce samples with constant fiber volume fraction, as different fraction will influence the mechanical properties of the GFRP [13].
Due to the nature and properties of glass fiber, the use of coolant is not suitable.
High temperature generated by the friction between the tool bit and the work piece will change the mechanical properties of the GFRP [6].
The fabricated samples were tested for its mechanical properties.
It is very crucial to produce samples with constant fiber volume fraction, as different fraction will influence the mechanical properties of the GFRP [13].
Online since: January 2019
Authors: Annalisa Pola
CORRELATION BETWEEN MICROSTRUCTURE AND PROPERTIES OF SEMI-SOLID PRODUCTS
Annalisa Pola
University of Brescia, Department of Mechanical and Industrial Engineering
Brescia, Italy
email: annalisa.pola@unibs.it
Keywords: semi-solid; microstructure; globules; mechanical properties; wear; corrosion; cavitation-erosion.
On the contrary, only some studies focus their attention on the relationship between enhanced mechanical properties and the microstructure.
This modified microstructure strongly affects the mechanical and technological properties of the casting, additionally improved by the absence of porosity typical of SSM products.
Wu, Microstructure and mechanical properties of rheo-diecasted A390 alloy, Trans.
Mao, Effect of semi-solid processing on microstructure and mechanical properties of 5052 aluminum alloy, Trans.
On the contrary, only some studies focus their attention on the relationship between enhanced mechanical properties and the microstructure.
This modified microstructure strongly affects the mechanical and technological properties of the casting, additionally improved by the absence of porosity typical of SSM products.
Wu, Microstructure and mechanical properties of rheo-diecasted A390 alloy, Trans.
Mao, Effect of semi-solid processing on microstructure and mechanical properties of 5052 aluminum alloy, Trans.
Online since: September 2013
Authors: Z.M. Cui, J.P. Kong, Q.Q. Chen, Y.G. Han
The two main factors in the processing were described.
After items and systems tests, we fixed some factors affecting on processing.
Main factors affecting on processing efficiency are grinding speed, free abrasive grains and composite lapping plate, etal.
These tow factors of grinding speed and grain size play a different effect from common grinding.
Grinding speed is the main factor affecting the processing efficiency.
After items and systems tests, we fixed some factors affecting on processing.
Main factors affecting on processing efficiency are grinding speed, free abrasive grains and composite lapping plate, etal.
These tow factors of grinding speed and grain size play a different effect from common grinding.
Grinding speed is the main factor affecting the processing efficiency.
Online since: April 2015
Authors: Salmah Husseinsyah, Azimah Ismail, Hakimah Osman
The dispersion and interfacial adhesion between the CS filler and thermoplastic were important factors affecting the tensile properties of composites system.
The addition of MAPE has enhanced tensile properties and interfacial interaction between CS and LDPE biocomposites, as demonstrated in SEM study.
The compatibility problem between natural filler and polyolefin may results in poor filler-matrix adhesion as well as poor mechanical properties.
The good properties of these biocomposites can be obtained by improving the compatibility between these two materials.
Tensile properties for five identical samples of each composition were measured and the average values were reported.
The addition of MAPE has enhanced tensile properties and interfacial interaction between CS and LDPE biocomposites, as demonstrated in SEM study.
The compatibility problem between natural filler and polyolefin may results in poor filler-matrix adhesion as well as poor mechanical properties.
The good properties of these biocomposites can be obtained by improving the compatibility between these two materials.
Tensile properties for five identical samples of each composition were measured and the average values were reported.
Online since: August 2013
Authors: Shun Xi Gao, Qing Liang Zhang
The combinations of these factors including high temperature, metallurgical alternations and plastic deformations, rather than the residual stress alone affect surface topography and surface integrity.
Eriksen [7] questioned the effectiveness of surface roughness on material’s mechanical strength properties.
The basic idea is: the data for mechanical properties given by material suppliers must be different from properties of machined components because the careful treatment of test specimens differs considerably from an ordinary industrial procedure.
Surface integrity factors Surface integrity is closely related with the functional performance of machined workpiece.
Eriksen, The influence of surface roughness on the mechanical strength properties of machined short-fibre-reinforced thermoplastics, Composites Science and Technology 60 (2000), 107-113 [8] Z.
Eriksen [7] questioned the effectiveness of surface roughness on material’s mechanical strength properties.
The basic idea is: the data for mechanical properties given by material suppliers must be different from properties of machined components because the careful treatment of test specimens differs considerably from an ordinary industrial procedure.
Surface integrity factors Surface integrity is closely related with the functional performance of machined workpiece.
Eriksen, The influence of surface roughness on the mechanical strength properties of machined short-fibre-reinforced thermoplastics, Composites Science and Technology 60 (2000), 107-113 [8] Z.
Online since: March 2008
Authors: Chong Hai Xu, Guang Chun Xiao, Rong Bo Zhang, Yu Mei Feng
Research on the Advanced Ceramic Die Materials and Their Properties
Chonghai Xu1,2,a, Guangchun Xiao1 , Rongbo Zhang
1 and Yuemei Feng1
1
School of Mechanical Engineering, Shandong Institute of Light Industry, Jinan, China, 250353
2
School of Mechanical Engineering, Shandong University, Jinan, China, 250061
a
xch@sdili.edu.cn
Keywords: Ceramic die materials, Composition, Processing technology, Mechanical property,
Engineering performance
Abstract.
On the other hand, Al2O3 was used to increase the room temperature and high temperature mechanical properties and the anti-aging ability at low temperature.
Si3N4 ceramics, particularly the reaction sintered one, have good mechanical properties, wear resistance, thermal shock resistance and chemical stability.
Mechanical properties of the materials can basically satisfy the requirements of dies.
It should be noticed, however, that the application of ceramic dies is still affected by so many factors.
On the other hand, Al2O3 was used to increase the room temperature and high temperature mechanical properties and the anti-aging ability at low temperature.
Si3N4 ceramics, particularly the reaction sintered one, have good mechanical properties, wear resistance, thermal shock resistance and chemical stability.
Mechanical properties of the materials can basically satisfy the requirements of dies.
It should be noticed, however, that the application of ceramic dies is still affected by so many factors.
Online since: March 2007
Authors: Fei Deng, Toshio Ogasawara, Nobuo Takada
Recently, it is believed that SWNTs, MWNTs and carbon nanofibers (CNFs) can be
used as filler in polymer matrices leading to composites with many enhanced properties, especially in
mechanical properties [9-12].
However, the effect of mechanical properties at different temperatures has not been reported in CNT/polymer composites.
PEEK is a high performance thermoplastic material that retains its good mechanical properties even at high temperatures.
By introducing CNTs to enhance the mechanical, electrical and thermal properties, the potential will be advanced.
In order to characterize the thermal mechanical properties, composites with different MWNTs concentrations were tested with a dynamic mechanical thermal analyzer (DMA).
However, the effect of mechanical properties at different temperatures has not been reported in CNT/polymer composites.
PEEK is a high performance thermoplastic material that retains its good mechanical properties even at high temperatures.
By introducing CNTs to enhance the mechanical, electrical and thermal properties, the potential will be advanced.
In order to characterize the thermal mechanical properties, composites with different MWNTs concentrations were tested with a dynamic mechanical thermal analyzer (DMA).