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Online since: July 2012
Authors: Long Jiang, Wan Shun Wang, Chen Lin Xiong, Zhao Hui Zhu, Jian Hui Sun
Study on Engineering Mechanical Properties of Mayanpo Slope at Xiangjiaba Hydropower Station Jianhui SUN,long JIANG,Wanshun WANG,Chenlin XIONG,Zhaohui ZHU China Institute of Water Resources and Hydropower Research ,Beijing, China E-mail address: jiangl_zhj@126.com.
Analysis of Field Test Results. 1)External Deformation Property.
The overall deformation is mainly affected by seasons and rainfall, in a stable condition.
Plastic strain contours with different reduction factors are shown in Figure 11, lateral deformation curves in Figure 12.
The Feasibility Study of Strength-reduction Method with FEM for Calculating Safety Factors of Soil Slope Stability [J].
Online since: March 2013
Authors: Wei Yan, Yuan Hui Weng, Zong Qiang Luo, Wei Wen Zhang
The grain size of the extruded alloy was significantly refined and the mechanical properties increased remarkably compared to the as-cast alloy.
The microstructures of the extruded alloy are influenced not only by interactive action between hardening and softening but also by factors such as the temperature, strain rate, degree of deformation and its own nature.
Fig. 4 shows the mechanical properties of the as-cast and extruded alloys at different temperatures.
When the extruded temperature is 1075 ℃, the best mechanical properties can be achieved.
Thus the amount and depth of the dimples reduce, which results in deterioration of mechanical properties of the alloy.
Online since: December 2010
Authors: Chun Lin Qiu, Lin Xiu Du, Yong Da Yang, Xiu Hua Gao
Low-carbon micro-alloying niobium elements and TMCP (thermo-mechanical controlled processing) were employed to refine the grains and improve mechanical properties.
This paper investigated the effects of TMCP process on the microstructure and mechanical properties of the rolled FH40 plate.
Results and Discussion The mechanical properties of the rolled plates in tensile tests were characterized at room temperature.
All the factors contributed to the increase in the toughness of the steel at low temperatures with high yield strength.
Summary The microstructure and mechanical properties, such as strength and absorbed energy, of a developed steel were investigated in the paper.
Online since: January 2009
Authors: Zheng Guang Zou, Xin Wang, Yu Fang Shen, Yi Wu, Fei Long
The effects of C content on the mechanical properties and microstructures of GT35 composites were investigated.
The results showed that the good mechanical properties of steel-bonded cemented carbide GT35 composite were obtained with 0.9wt.% C at the same sintering conditions and the density reached 6.12g/cm3, the average bending strength was over 1229MPa after heat treatment, the mean hardness HRC was 69.4.
The effect of C content on density and mechanical properties of GT35 composites.
Besides, pores were formed due to the blocked CO gas, impairing the microstructure and properties of the composites.
%C exhibit excellent properties: the density reached 6.22g/cm3 , the average bending strength reached 1229MPa after heat-treatments, the hardness exceeded HRC 69.4.
Online since: October 2010
Authors: Jie Zhang, Sha Li, Xiao Ming Qian
The influences of flax / PP fiber blending ratio, molding temperature, molding time on the mechanical properties of flax / PP board were carefully investigated.
Mold process chart Test of mechanical properties of composite material.
Applying the orthogonal experiment design, the affect of molding process parameters on mechanical properties of composite materials was studied.
The mechanical properties of flax fiber reinforced polypropylene composites are affected by flax fiber, PP fiber and the interfacial performance between them.
It caused mechanical properties of composite plate to decrease.
Online since: November 2013
Authors: Mazlina Mustafa Kamal, Zakwan Zaeimoedin Teku, Kifli Che Aziz Ahmad
In this work, the objective of the study was to investigate the influence of viscosity on silica dispersion and in relation to mechanical and performance properties of Epoxidised Natural Rubber (ENR) compound.
Results showed that low viscosity of rubber will facilitate further the dispersion of the filler in the system although other physical properties will be affected.
Compound Properties The compound properties of the filled compound are presented in Table 1.
Perhaps the surface area and surface chemistry is the most important factors in controlling the tensile strength.
It is interesting to note that beside of cross link density and rubber filler interaction, the viscosity of the rubber also is one of the factors that influencing the abrasion properties of the compound.
Online since: October 2013
Authors: Xiao Juan Wu, Ya Jun Wang
The factors affecting the dielectric properties are discussed.
Combining the polymer material with excellent mechanical properties and film-forming properties and ceramic material with high dielectric constant to prepare composite is a new approach for dielectric materials [1,4,7,8].
The dielectric properties of the composite samples were measured by Concept 80 broadband dielectric/impedance spectrometer with conductive silver paste coated on both side of the film.
Dielectric Properties of BT/PI Composite Film. (1) Effect of BT content.
Zheng, Size-dependences of the dielectric and ferroelectric properties of BaTiO3/polyvinylidene fluoride nanocomposites, Journal of Applied Physics, 108 (2010) 014102
Online since: July 2011
Authors: Xiao Yu Zhang, Yun Peng Zhang, Hua Wang
The results indicate that the weld bead with excellent mechanical properties can be obtained using the welding process parameter with the welding current of 210A, welding speed of 4 mm/s and the argon gas flow rate of 8~12 L/min.
Introduction Owing to a series of excellent characteristics and properties including high melting point, large elastic modulus, small thermal expansion coefficient, good thermal conductivity, strong corrosion resistance and good high-temperature mechanical properties, TZM alloy has been widely used in the aerospace fields such as the exhaust valve of torpedo engine, rocket nozzle, gas pipeline and nozzle insert.
In the paper, the weldability of the TMZ alloy, the proper welding method and the microstructure and the properties of the TMZ alloy were mainly discussed.
Performance Powder Metallurgy of TZM alloy sheet and its influencing factors.Powder Metallurgy Technology, Vol.8(1990).p.75~84 [3] Huichao Cheng,Jinglian Fan,Tao Liu etc.
Study on the Effects of Various Factors on the Ductility and Brittleness Properties of Molybdenum and Molybdenum Alloys.
Online since: December 2013
Authors: Nieyangzi Liu, Deng Cheng Ma, Hong Hai Liu, Zhi Geng Zhang
Through the analysis of factors affecting the compaction properties of materials,self-vibration phenomenon and resonance phenomenon,theoretical study on the effect of shear strength of the material vibration, the comparative experiments were conducted by heavy compaction instrument and vibration compaction instrument,accommodate compaction property of graded crushed aggregate,the test methods were obtained,also the test parameters were determined, and verified by experiment. 0 Introduction Graded crushed aggregate is composed of different sizes of gravel, and meeting certain grading requirements,which can achieve high strength and stability.
Fine graded gravel layer has higher stiffness, which can provide good load distribution properties and high shear strength to reduce vehicle deformation under the action of the rut.
Factors affecting the compaction effect The main factors influencing the effect of graded gravel compaction have two aspects: one is the internal factor including the material physical properties, gradation composition, layer thickness and water content, the other is the external factor.
According to the theory of resonance, the best compaction effect may be produced in the natural frequency range of mechanical and material system, when the resonance occurs, spring elastic effect may occur which would increase the compactness of the materials. 2.2 Influence of vibration on the shear strength of the materials In the process of vibration compaction, the shearing strength of the material was mainly affected by three factors: namely the cohesive force between particles, the sliding friction and interlocking friction, as shown in Eq. (1).
(2) Test Material The physical properties and graded composition of materials testing shown in Table 1 and Table 2.
Online since: December 2023
Authors: R. Sridhar, Ajith Arul Daniel, P. Prajulraj, R. Pugazhenhi
This machinability study three factors and three levels is used to optimize the process parameters, in this work from the investigation of mechanical properties it was notice that Al6061 Alloy with various weight percentage of nano tungsten carbide (WC) aluminium composite is superior in mechanical properties than the Al6061 Alloy with varying the weight percentage of Silicon carbide (WC).
It is cleared from percentage of contribution that cutting speed is the majorly affecting factor of (33.54%) followed by depth of cut (29.68%) on MRR.
"Titanium particulate metal matrix composites–Reinforcement, production methods, and mechanical properties."
"Investigating the mechanical properties of tungsten carbide metal matrix composites with Al 6061." 
"Modeling of mechanical properties and high temperature wear behavior of Al7075/SiC/CRS composite using RSM."
Showing 1721 to 1730 of 26166 items