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Online since: August 2013
Authors: Pei Qiang, Huan Zhen Lei
There are many factors which can affect the mechanical properties of interface .Targeted research about effect anti-slide pile design parameters act on the contact stress is carried out in this paper.
And the mechanical properties analysis of the contact surface between the anti-slide pile and soil is the premise to solve the interaction problem between anti-slide pile and soil.
(3) Research of the interface element constitutive model [3, 4]; (4) Research of contact surface mechanical properties [5, 6].
Research Status of Interface Mechanical Properties between Pile and Soil.
Experimental study of mechanical properties of interface between pile and macadam soil in accumulative landslide in three gorges reservoirarea.
And the mechanical properties analysis of the contact surface between the anti-slide pile and soil is the premise to solve the interaction problem between anti-slide pile and soil.
(3) Research of the interface element constitutive model [3, 4]; (4) Research of contact surface mechanical properties [5, 6].
Research Status of Interface Mechanical Properties between Pile and Soil.
Experimental study of mechanical properties of interface between pile and macadam soil in accumulative landslide in three gorges reservoirarea.
Online since: July 2011
Authors: Xiao Qian Qi, Xu Ping Zhang
Mechanical and Friction-Wear Properties of MoS2 Al-matrix Self-lubricating
Xiaoqian Qi1,a, Xuping Zhang2,b
1,2College of Material Science and Engineering,China University of Mining and Technology, China
aqixiaoqian1987@126.com , bxpzhang@cumt.edu.cn
Keywords:Al-matrix self-lubricating materials, MoS2, friction coefficient, wear rate, mechanical properties
Abstract.
Addition of MoS2 can reduce friction coefficient, Fe is used to improve the mechanical properties.
Si is an important affecting factor for hardness.This is due to a new solid phases-Al3.21Si0.47.
Si is an important affecting factor for hardness.
Optimization of mechanical and chemical properties of sulphuric anodized aluminium using statistical experimental methods[J].
Addition of MoS2 can reduce friction coefficient, Fe is used to improve the mechanical properties.
Si is an important affecting factor for hardness.This is due to a new solid phases-Al3.21Si0.47.
Si is an important affecting factor for hardness.
Optimization of mechanical and chemical properties of sulphuric anodized aluminium using statistical experimental methods[J].
Online since: April 2014
Authors: Cai Xia Wang, Zhi Wen Zhou, Chen Diao, Ming Hua Liu
With the online adjustment of scaling factors of quantization factors and proportion factor of fuzzy controller, quantization factors and proportion factor are changed indirectly.
With the designed Adaptive-Fuzzy-Smith Algorithm, the effect of mechanical property, time-delay, is well compensated.
Time-delay and nonlinear are main factors affecting the stability of boiler combustion process.
The effect of mechanical property, time-delay, is improved.
Mechanical Properties and Mathematical Model of Boiler Combustion Temperature System Boiler combustion system mainly includes the transmission process of fuel, fuel combustion process and formation of steam.
With the designed Adaptive-Fuzzy-Smith Algorithm, the effect of mechanical property, time-delay, is well compensated.
Time-delay and nonlinear are main factors affecting the stability of boiler combustion process.
The effect of mechanical property, time-delay, is improved.
Mechanical Properties and Mathematical Model of Boiler Combustion Temperature System Boiler combustion system mainly includes the transmission process of fuel, fuel combustion process and formation of steam.
Online since: September 2014
Authors: Yao Jun Zhang, Li Wang
Many studies show that the type and properties of aggregates for concrete mechanical properties of high-temperature research has important significance.
And because the factors that affect the mechanical properties of concrete at high temperatures many, therefore, to understand the high temperature properties of concrete needed to carry out further experimental study.
Taken together these problems still exist for the study of high-temperature mechanical properties of concrete: (1) Affect mechanical properties of concrete by many factors, such as mixing ratio, the level of construction, maintenance conditions, loading methods, even the same batch have considerable differences between the mechanical properties of concrete will be to carry out changes in the mechanical properties after high temperature research needs large quantities of experimental data statistics.
The study considers aggregate internal defects for high temperature mechanical properties of concrete fewer.
The coarse aggregate ofconcrete [J]., affect the heat burst properties of high strength concrete in 2011 April.
And because the factors that affect the mechanical properties of concrete at high temperatures many, therefore, to understand the high temperature properties of concrete needed to carry out further experimental study.
Taken together these problems still exist for the study of high-temperature mechanical properties of concrete: (1) Affect mechanical properties of concrete by many factors, such as mixing ratio, the level of construction, maintenance conditions, loading methods, even the same batch have considerable differences between the mechanical properties of concrete will be to carry out changes in the mechanical properties after high temperature research needs large quantities of experimental data statistics.
The study considers aggregate internal defects for high temperature mechanical properties of concrete fewer.
The coarse aggregate ofconcrete [J]., affect the heat burst properties of high strength concrete in 2011 April.
Online since: April 2015
Authors: R. Rodriguez-Laviada, E. Perez-Pacheco, Carlos Rolando Ríos-Soberanis
arolando@cicy.mx, brlaviada@cicy.mx, ceperez@itescam.edu.mx
Keywords: Textile architecture; geotubes; mechanical properties; polymers.
There are many environmental factors, which influence aging mechanisms of geotextiles such as UV radiation, temperature, humidity, etc.
Mechanical properties: Figure 6 presents stress-strain curves of the three textiles tested in tensile mode.
All the textiles studied in this work achieved excellent mechanical properties at 90o (transverse).
The effect of artificial environmental photodegradation and humidity affected significantly the mechanical behavior of textiles by gradually diminishing its properties.
There are many environmental factors, which influence aging mechanisms of geotextiles such as UV radiation, temperature, humidity, etc.
Mechanical properties: Figure 6 presents stress-strain curves of the three textiles tested in tensile mode.
All the textiles studied in this work achieved excellent mechanical properties at 90o (transverse).
The effect of artificial environmental photodegradation and humidity affected significantly the mechanical behavior of textiles by gradually diminishing its properties.
Online since: January 2012
Authors: Cemail Aksel
The variations and developments with the reasons on the mechanical properties of MgO-MgAl2O4 and MgO-ZnO-Al2O3 composite refractories were examined and thermal parameters affecting the durability of composites at high temperatures were investigated.
The relationships between mechanical properties and structural variations for different compositions and the factors affecting this connection were investigated.
With the additions of various amounts of ZnO-Al2O3 to MgO, significant improvements were achieved on both mechanical properties and R-Rst parameters of in-situ formed M-S-ZnAl2O4 composite refractories, compared to MgO-MgAl2O4 materials containing preformed spinel, by factors of up to 3.6 and 2.0, respectively.
In this study, the relationships between the mechanisms causing improvement on the mechanical properties of composite refractories and microstructural changes and parameters affecting these were investigated in detail and explained with the reasons.
These identified microstructural factors are associated with the improvement occurring in the mechanical properties of ZnO-Al2O3 added composite refractories.
The relationships between mechanical properties and structural variations for different compositions and the factors affecting this connection were investigated.
With the additions of various amounts of ZnO-Al2O3 to MgO, significant improvements were achieved on both mechanical properties and R-Rst parameters of in-situ formed M-S-ZnAl2O4 composite refractories, compared to MgO-MgAl2O4 materials containing preformed spinel, by factors of up to 3.6 and 2.0, respectively.
In this study, the relationships between the mechanisms causing improvement on the mechanical properties of composite refractories and microstructural changes and parameters affecting these were investigated in detail and explained with the reasons.
These identified microstructural factors are associated with the improvement occurring in the mechanical properties of ZnO-Al2O3 added composite refractories.
Online since: January 2013
Authors: Jing Xu, Wu Yao
Fiber surface treatment plays an important role in the mechanical properties of CFRC and the optimum way is HNO3 treatment.
Previously, many ways have been tried to improve both the electrical and mechanical properties of CFRC.
Results and discussion Factors affecting resistivity, compressive strength, and flexural strength are water-to-cement ratio, silica fume content, and fiber surface treatment, respectively.
The difference value analysis of orthogonal experiment results show that water-to-cement ratio is the most important factor among the three factors in affecting the resistivity of CFRC.
Fiber surface treatment plays an important role in the mechanical properties of CFRC.
Previously, many ways have been tried to improve both the electrical and mechanical properties of CFRC.
Results and discussion Factors affecting resistivity, compressive strength, and flexural strength are water-to-cement ratio, silica fume content, and fiber surface treatment, respectively.
The difference value analysis of orthogonal experiment results show that water-to-cement ratio is the most important factor among the three factors in affecting the resistivity of CFRC.
Fiber surface treatment plays an important role in the mechanical properties of CFRC.
Online since: December 2011
Authors: Gao Feng Quan, Xian Xie, Xiue Gu, Jia Le Sun, Xing Ming Liu
The brazing process of magnesium alloy AZ31 was studied, and the mechanical properties of the weld were examined, and the main factors were analyzed through brazing furnace tests in this work.
And its mechanical properties (the maximum shear strength is 6 MPa) were much lower than that of welded joints with the flux protection.
In addition, improving welding heat source to reduce heat affected zone can improve the mechanical properties of welded structures effectively.
As the coarse dendrite structure could reduce the mechanical properties of joints, that producing more uniform and smaller weld organizations such as the isometric crystal by heat treatment or accelerating cooling rate is a effective way to improve the mechanical properties of magnesium alloy brazed joints.
The flux, fixtures, temperature and holding time were important factors affecting the performance of lap joint in the furnace brazing of AZ31 magnesium alloy. 2.
And its mechanical properties (the maximum shear strength is 6 MPa) were much lower than that of welded joints with the flux protection.
In addition, improving welding heat source to reduce heat affected zone can improve the mechanical properties of welded structures effectively.
As the coarse dendrite structure could reduce the mechanical properties of joints, that producing more uniform and smaller weld organizations such as the isometric crystal by heat treatment or accelerating cooling rate is a effective way to improve the mechanical properties of magnesium alloy brazed joints.
The flux, fixtures, temperature and holding time were important factors affecting the performance of lap joint in the furnace brazing of AZ31 magnesium alloy. 2.
Online since: February 2007
Authors: Metin Gürü, Süleyman Tekeli
The Factors Affecting Colloidal Processing of 8YSCZ Ceramics
Süleyman Tekeli1 and Metin Gürü
2
1
Materials Division, Metallurgy Education Department, Faculty of Technical Education Faculty, Gazi
University, 06500, Besevler-Ankara/TURKEY
2
Chemical Engineering Department, Engineering and Architectural Faculty, Gazi University, 06570,
Maltepe-Ankara/TURKEY
Keywords: Colloidal processing, Zirconia Ceramics, Agglomeration, Sintering
Abstract.
To achieve improvements in the mechanical properties, fine grain size, homogeneous microstructure and high density are desirable.
The poor dispersion of the powders produce difficulties in the densification and the presence of agglomerates is responsible for poor mechanical properties.
Particle size and particle size distribution are also relevant factors that determine the reological properties of the suspensions and the packing ability of the powders.
There are many factors affecting the casting characteristic of the slurry system and relative densities, namely solid content, slurry viscosity, dispersing agent concentration and milling time.
To achieve improvements in the mechanical properties, fine grain size, homogeneous microstructure and high density are desirable.
The poor dispersion of the powders produce difficulties in the densification and the presence of agglomerates is responsible for poor mechanical properties.
Particle size and particle size distribution are also relevant factors that determine the reological properties of the suspensions and the packing ability of the powders.
There are many factors affecting the casting characteristic of the slurry system and relative densities, namely solid content, slurry viscosity, dispersing agent concentration and milling time.
Online since: June 2010
Authors: Zi Ming Kou, Rui Li
Effecting Factors Study for Powder Flow Characteristics
Ziming Kou1, a , Rui Li2, b
1
College of Mechanical Engineering, Taiyuan University of Technology, No. 79 West Yingze Street,
Taiyuan, Shanxi, China
2
College of Mechanical Engineering, Taiyuan University of Technology, No. 79 West Yingze Street,
Taiyuan, Shanxi, China
a
zmkou@163.com, bm.m.e.rli@126.com
Keywords: Powder; Flow Rate; Effecting Factors; Hopper
Abstract.
To understand the influence of external factors on powder flow process from the hopper, and to get the prerequisite to control the flow rate, by doing a lot of experiments.
In this paper, the size distribution regulation was acquired by SCIROCCO 2000 (dry method) laser granulometry, and then the affection on flow rate from many external factors were separate considerations.
Not only many factors can affect the flow from the hopper, but also dynamic and automatic measurement was very difficult.
Silo Discharge Simulations With Different Particulate Properties Using the Distinct Element Method: TRANSACTIONS OF THE CHINESE SOCIETY OF AGRICULTURAL ENGINEERING, 1999, 15(3): 65~69
To understand the influence of external factors on powder flow process from the hopper, and to get the prerequisite to control the flow rate, by doing a lot of experiments.
In this paper, the size distribution regulation was acquired by SCIROCCO 2000 (dry method) laser granulometry, and then the affection on flow rate from many external factors were separate considerations.
Not only many factors can affect the flow from the hopper, but also dynamic and automatic measurement was very difficult.
Silo Discharge Simulations With Different Particulate Properties Using the Distinct Element Method: TRANSACTIONS OF THE CHINESE SOCIETY OF AGRICULTURAL ENGINEERING, 1999, 15(3): 65~69