Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: April 2015
Authors: N.V. Martyushev, Anton Viktorovich Korchmit
This work presents the characteristic properties of powdered materials sintering under conditions of liquid-phase sintering.
A number of technological factors, such as, pouring temperature (heat content of the melt), heat-retaining capacity of the mould (cooling rate), rotational velocity of the casting mould (in case of centrifugal casting), pouring rate of the melt into the mould, mould temperature, and some other factors, simultaneously influence the formation of the structure and properties of tin bronze castings.
Mechanical properties were determined by means of modern testing machine MIRI-100K with computer control and mechanical characteristics calculation.
Scheme of crystallization of lead phase at low (a) and high (b) temperatures of the casting Changes in structure CuPb13Sn10Zn2Ni2 under the influence of the crystallization conditions affect its properties (Figure 3).
Petrenko, Structure and properties of leaded tin bronze under different crystallization conditions, Advanced Materials Res. 872 (2014) 89-93
Online since: January 2012
Authors: Chang Qing Ren, Sheng Tong Yu, Chun Mei Yang, Ge Luo
The factors that affect the cutting force have been identified.
However, the main cause of this problem is: the branches mill manufacturers in China are short of the study of Cutting force and affect cutting force’s factors in the process of Branches crushing.
The intensity of fly knife as a major component of wood cutting is the main factors of affecting wood cutting.
The defining of the material properties adopts parameters which YG6A (hard alloy steel) is corresponding: Elastic modulus E = 2.06e11pa, Poisson ratio μ = 0.3, density ρ = 1.5E-5 Kg/mm3.
ANSYS Mechanical Engineering Applications[M].Beijing.
Online since: July 2008
Authors: Xiang Jie Yang, Hong Min Guo
China a guohongmin@ncu.edu.cn, byangxj@ncu.edu.cn Keywords: rheocasting, forging, wrought aluminum alloy, microstructure, mechanical properties Abstract.
Subsequent optimized heat treatments raise significantly the mechanical properties.
The as-cast mechanical properties are common, yield strength of 198MPa, ultimate tensile strength of 306MPa and elongation to fracture of 10.4%.
Via heat treatment the mechanical properties of rheoforged 2024 were improved significantly.
Overall, better mechanical properties than thixoforging was obtain by LSPSF rheoforming.
Online since: November 2012
Authors: Jong Kook Lee, Dong Seok Seo, Hong Hwang Kyu
Mechanical property of the HA has been also affected.
However, when implanted in the body, mechanical properties of HA such as fracture toughness decrease drastically during exposure to the in vivo environment resulting in the presence of loose particles and microstructural degradation [3,4].
There are many factors affecting dissolving behavior of HA.
In addition, the effect of microstructural change on mechanical property of HA was discussed.
From the microstructural disintegration of HA, one can expect mechanical properties can be affected by surface dissolution.
Online since: November 2007
Authors: Bo Zhao, Chuan Shao Liu, Guo Fu Gao, Qing Hua Kong
Based on the machining pattern, mechanics of material removal and theory of micro-indentation, in previous studies the models of material removal rate of hard-brittle materials was discussed through the relatively influencing factors of machining parameters from various aspects, reflecting the research advances on mechanics of material removal of hard-brittle materials.
The material removal rate is affected not only by the properties of material and machining parameters, but also by the character of grinding wheel and parameters of ultrasonic vibration.
Introduction As a kind of advanced engineering materials, complex ceramics are promising materials for a large number of high-technology engineering applications due to their excellent properties, including high strength at elevated temperature, low thermal expansion, good wear resistance, chemical inertness and so on[1].
Therefore, the critical ductile depth of cut for ceramic machining can be modified as ( ) 2 IC c 1 2 3 4 v v , , , KE d f H H ξ ξ ξ ξ    =       (11) where f(.) is a weight function of different factors, ξ1 is the material coefficient, ξ2 is the coefficient of machining method, ξ3 is the material coefficient of cutting conditions, ξ4 is the material coefficient of wheel topography.
The material removal rate is affected not only by the properties of material and machining parameters, but also by the character of grinding wheel and parameters of ultrasonic vibration.
Online since: January 2012
Authors: Yong Fu Jin
However, the study result largely depends on the factors considered during the building of the model.
According to the analysis of tribological systems, friction and wear characteristic of friction system depends on many factors, which compose the system.
The environmental media affected solid, lubricant oil, process on the solid surface, determines tribological properties of the system.
The determination of major effecting factors of friction system.
It can be seen from Fig.2 that there are a number of factors that can affect on the friction systems.
Online since: July 2021
Authors: Gonzalo Mármol, Francisco P. Brito, Usha Kiran Sanivada, Raul Fangueiro
The main factors affecting the damage of NFRCs are shown in Fig. 2.
Factors Affecting Impact Resistance Primary Factors Secondary Factors Resin Toughness Fabric Architecture Thermoset Resin Thermoplastic Resin 2 D FRC 3 D FRC Uni Directional Non Crimp Fabric Bi Directional Orthogonal Woven Commposite Non Woven Compsote Angle InInterlock Woven Composite Impactor Geometry Environment Conditions Size Mass Shape Humidity Hygro-Thermal Low/High Temp Fabric Hybridization Repeated Impact Ply Angle Ply Thickness Stacking Sequence Matrix Hybridization Summary Fig. 2 Factors Affecting Impact Resistance of Fibre Reinforced Composites [16] The mechanical properties such as tensile strength, flexural strength, impact toughness, and fracture toughness will be improved with the increment of the fibre loadings in the NFRC and the values of the fracture toughness and fibre loadings are proportional to each other up to a certain limit and decrease thereon.
The most critical factors affecting the fracture toughness and impact energy of biocomposites are the physical and chemical treatments that improve the interfacial adhesion at the fiber-matrix interface and also the type of hybridization process [2].
Polat, “Review of the Main Factors Controlling the Fracture Toughness and Impact Strength Properties of Natural Composites,” Mater.
Nayak, “Influence of Different Treated Cellulose Fibers on the Mechanical and Thermal Properties of Poly(lactic acid),” ACS Sustain.
Online since: May 2024
Authors: Sachin Kumar, Hari Om Sharma, Dinesh Kumar Patel, Shiv Ranjan Kumar
Rice straw was successfully tested for mechanical strength and thermal properties [29-31].
For effective extraction of lignin, the factors which affect the lignin extraction are concentration, temperature and reaction rate.
Mechanical properties of PLA are excellent.
Fig.4 Major factors affecting the properties rice RS and RH reinforced polymer composite There are various factors that are responsible to change the properties of composite material (Fig.4).
Gope, “Mechanical properties of rice husk flour reinforced epoxy bio-composite,” Int.
Online since: January 2014
Authors: Rui Hong Wang, Yu Zhou Jiang, Jin Long Guo, Tian Cai Tang
The test result show that there are some correlations and trends between uniaxial compressive strength and point load strength, the shape size and lithology of rock specimens have important influence on the result of point load test, and the greain size, the mineral compositon and the structral compact are key factors.
Introduction The mechanical strength of rock is an important parameter for rock engineering designing, constructioning, its accuracy directly affects the security and stability of the construction and operation,As well as the economic rationality of construction[1-5].
By eye’ discerning, engineering geological properties of the rock sample is divided into roughly the same group.
From figure 2, although the rock sample homogeneous andregular shape were tested, but the related law of point load strength and saturatedcompressive strength is still not clear, the property of rock itself Plays a decisive role,the corresponding regression equation list: Rc = 18.68Is(50)+ 23.3 R2 = 0.6579 (7) Rc = 22.39Is(50) R2 = 0.6229 (8) Rc = 23.96 Is(50)0.9671 R2 = 0.6633 (9) From the fitting formula obtained by the above,we can find that the correlation coefficient of regression is not high, the quantitative description of Rc and Is (50) relationship is not precise enough.
But the shape and dimensions of the sample, lithology and structure factors directly affect the Rc and Is (50) the relationship, in which the particle size of the rock, mineral composition, the degree of its dense structure factors play a more dominant influence.
Online since: November 2012
Authors: Lucas Festugato, Nilo C. Consoli, Vagner R. Botaro, Gislene A. Santiago
The inclusion of artificial fibers in the soil has been studied by many researchers during the last years and has shown efficient by improving the mechanical properties of the soil.
Through the obtained results, it was observed that the addition of randomly distributed natural treated fibers presented significant improvements on the mechanical properties of this soil.
A number of factors such as the fiber characteristics (content, length, thickness, modulus, tensile strength and failure strain) and the soils characteristics (grain size distribution and mean particle size) influence the behavior of the soil-fiber composite [14].
The superficial treatment of vegetal fibers does not affect the mechanical behavior of these fibers.
Webster, Engineering properties of sand-fiber mixtures for road construction, Journal of Geotechnical and Geoenvironmental Engineering, 127 (2001) 258-268
Showing 3711 to 3720 of 26166 items