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Online since: November 2011
Authors: Julio Cesar Dutra, Fernando Aparecido Pacheco Da Silva Fortunato, Francisco Augusto Alves Ferreira, Diego Coccumazzo, Elesandro Antonio Baptista, Nivaldo Lemos Coppini
It refers to a technological materials property, not an intrinsic one.
Some factors affecting the rate of grain growth in metals.
Doctoral Thesis, Faculty de Mechanical Engineering of UNICAMP, Campinas.
Machining Strength of Materials – Concept, Measurement, and Applications of a New Property.
Influence of crystallographic textures on tensile properties of 316L autenitic stainless steel.
Some factors affecting the rate of grain growth in metals.
Doctoral Thesis, Faculty de Mechanical Engineering of UNICAMP, Campinas.
Machining Strength of Materials – Concept, Measurement, and Applications of a New Property.
Influence of crystallographic textures on tensile properties of 316L autenitic stainless steel.
Online since: February 2019
Authors: Kheira Bouzouina, Sadek Gouasmi, Djebbar Noureddine, Chelahi Chiker Yamina
Table 1 Mechanical properties of the dental structures [28-32].
This is due to low mechanical properties of this latter.
[6]A.Sharma, G.R.Rahul, S.T.Poduval, Shetty K.Assessment of various factors for feasibility of fixed Cantilever bridge: a review study.
"Mechanical loading of Brånemark implants affects interfacial bone modeling and remodelling".
A new method combining finite element analysis and digital image correlation to assess macroscopic mechanical properties of dentin.
This is due to low mechanical properties of this latter.
[6]A.Sharma, G.R.Rahul, S.T.Poduval, Shetty K.Assessment of various factors for feasibility of fixed Cantilever bridge: a review study.
"Mechanical loading of Brånemark implants affects interfacial bone modeling and remodelling".
A new method combining finite element analysis and digital image correlation to assess macroscopic mechanical properties of dentin.
Online since: February 2019
Authors: N.A. Tolmacheva, V.V. Barakhtenko, A.E. Burdonov, N.E. Garashchenko, A.A. Garashchenko, Elena Zelinskaya
Among other properties, PVC, depending on K-value, has different molecular weight (which is reflected in resin grade), a different viscosity that makes it possible to customize formulations with various filler amount and, respectively, with different physical and mechanical properties.
Consequently, the particle size distribution will positively affect rheological properties, namely decrease composite viscosity [26].
With such differences in the cellular material structure, its physical and mechanical properties also change [31].
As the result of the research, a group of new materials with a wide range of positive physical, mechanical and consumer properties has been produced.
The definition of reinforcing action mechanisms of disperse fillers is one of the important parameters for direct improvement of MPC mechanical properties, in addition, the reinforcement is influenced by a great variety of factors.
Consequently, the particle size distribution will positively affect rheological properties, namely decrease composite viscosity [26].
With such differences in the cellular material structure, its physical and mechanical properties also change [31].
As the result of the research, a group of new materials with a wide range of positive physical, mechanical and consumer properties has been produced.
The definition of reinforcing action mechanisms of disperse fillers is one of the important parameters for direct improvement of MPC mechanical properties, in addition, the reinforcement is influenced by a great variety of factors.
Online since: May 2022
Authors: Dragoş Buzdugan, Bogdan Radu, Georgiana Melcioiu, Cosmin Codrean
The main factors which determine formation of whiskers are soldering alloy characteristics, substrate alloys which is placed on the surface of the PCB boards and not the least the working environment.
These whiskers fibers have very good electric conductive properties, producing solder shorts of the electronic components [1].
The failures produced affects all industries (military, aerospace, medical, house appliance, energy, IT, automotive) [2, 3].
The main factors which influence the formation of whiskers are soldering alloy characteristics, alloy substrate which is deposited on the PCB board and not least the operation environment [5, 6].
„Factors governing tin whisker growth”- Auburn: A dissertation submitted to the Graduate Faculty of Auburn University Doctor of Philosophy, 2012 [10] H.
These whiskers fibers have very good electric conductive properties, producing solder shorts of the electronic components [1].
The failures produced affects all industries (military, aerospace, medical, house appliance, energy, IT, automotive) [2, 3].
The main factors which influence the formation of whiskers are soldering alloy characteristics, alloy substrate which is deposited on the PCB board and not least the operation environment [5, 6].
„Factors governing tin whisker growth”- Auburn: A dissertation submitted to the Graduate Faculty of Auburn University Doctor of Philosophy, 2012 [10] H.
Online since: November 2011
Authors: Peng Wang, Wei Jun Yang
For the ceramisite concrete developed in recent years, because it has marked difference between common concrete in mixing technology and constouctional material and mechanical property[2], In particular, different coarse aggregate can make so much difference from ceramisite concrete and common concret, there is different size effect to concret that made by different ceramsite.
The distribution of aggregate will be affected, if we change depth-width ratio.
For the specimen with differert depth-width ratio, depth-width ratio is the most important factor,the formula 4 can not meet result.Take depth-width ratio as corrected value,improve the formula 3,the formula 5 can be found (5) then,,it is closed to the fact more,and contain many factors.
Influence factors of size effect in experimentation Factors that affect the size effect of concrete have the following: 1, Load rate in experimentation.
Through the experimentation, whether or not the center of pressing machine is aligned with the center of specimen, whether or not the platen of pressing machine is leveled off, whether or not the surface of specimen is leveling, whether or not intersecting plane meet at right angles, these factors will affect the test results. 3, As artificial causes, the distribution of aggregate is not uniformity in mixing, vibratory rammer forming is nonuniform, these produce a huge effect to strength.
The distribution of aggregate will be affected, if we change depth-width ratio.
For the specimen with differert depth-width ratio, depth-width ratio is the most important factor,the formula 4 can not meet result.Take depth-width ratio as corrected value,improve the formula 3,the formula 5 can be found (5) then,,it is closed to the fact more,and contain many factors.
Influence factors of size effect in experimentation Factors that affect the size effect of concrete have the following: 1, Load rate in experimentation.
Through the experimentation, whether or not the center of pressing machine is aligned with the center of specimen, whether or not the platen of pressing machine is leveled off, whether or not the surface of specimen is leveling, whether or not intersecting plane meet at right angles, these factors will affect the test results. 3, As artificial causes, the distribution of aggregate is not uniformity in mixing, vibratory rammer forming is nonuniform, these produce a huge effect to strength.
Online since: April 2015
Authors: D.K. Xu, En-Hou Han
For casting alloys, defects such as casting porosity and cavities are usually present and the fatigue properties are affected significantly by their shape and dimension [1-2].
In contrast, wrought alloys are basically defect-free and have superior mechanical properties, thus the evaluation of their fatigue properties is of great interest for understanding the intrinsic fatigue mechanism of Mg alloys [3].
Previous work demonstrated that Y content can remarkably influence the microstructure and tensile properties of Mg-Zn-Y-Zr system alloys [9-12].
Mutoh, Effects of Mn content and texture on fatigue properties of as-cast and extruded AZ61 magnesium alloys, Int.
Han, Effect of microstructure and texture on the mechanical properties of the as-extruded Mg-Zn-Y-Zr alloys, Mater.
In contrast, wrought alloys are basically defect-free and have superior mechanical properties, thus the evaluation of their fatigue properties is of great interest for understanding the intrinsic fatigue mechanism of Mg alloys [3].
Previous work demonstrated that Y content can remarkably influence the microstructure and tensile properties of Mg-Zn-Y-Zr system alloys [9-12].
Mutoh, Effects of Mn content and texture on fatigue properties of as-cast and extruded AZ61 magnesium alloys, Int.
Han, Effect of microstructure and texture on the mechanical properties of the as-extruded Mg-Zn-Y-Zr alloys, Mater.
Online since: August 2014
Authors: Shinya MORITA, Jiang Guo, Yutaka Yamagata, Shin Takeda, Junichi Kato, Masahiro Hino, Michihiro Furusaka
Introduction
Neutron beam has unique advantages such as deep penetration into materials, sensitive to light elements and capable of measuring magnetic properties, and has been used as a very powerful probe in material science.
The mechanical handling of glass mirror is not good because a special mechanical support is necessary and the alignment is difficult due to its brittle nature.
The electroless nickel has a good cutting property, and there is little wear happened on diamond tool.
The form accuracy of neutron mirror will be affected by accuracy of ultrahigh precision machine, profile accuracy of diamond tool, NC interpolation error as well as some environmental factors such as temperature and vibration, while surface roughness is mainly dominated by feed pitch and depth of cut.
The mechanical handling of glass mirror is not good because a special mechanical support is necessary and the alignment is difficult due to its brittle nature.
The electroless nickel has a good cutting property, and there is little wear happened on diamond tool.
The form accuracy of neutron mirror will be affected by accuracy of ultrahigh precision machine, profile accuracy of diamond tool, NC interpolation error as well as some environmental factors such as temperature and vibration, while surface roughness is mainly dominated by feed pitch and depth of cut.
Online since: October 2008
Authors: Yun Xia Wang, Xiao Dong Zhang, Xue Zhi Wu
The volume of battery box and control box and the method of
installation are the factors which should be considered on the design of length.
As regard to the position which does not have a definite affect to the overall strength of the body, such as screw hole, pile hole and round, they are not taken into account.
In this paper, the main factor causing the robot chassis' exciting force is the random excitation because the robot moves on the road surface.
From the view point for optimal design of weight reduction, some technical requests such as the bearing weight performance of robot chassis, the function of noise suppression of framework, and other mechanical properties should be taken into account.
To reduce the weight of framework as possible if decrease of dynamic property of framework is not serious is the objective of optimal design of weight reduction.
As regard to the position which does not have a definite affect to the overall strength of the body, such as screw hole, pile hole and round, they are not taken into account.
In this paper, the main factor causing the robot chassis' exciting force is the random excitation because the robot moves on the road surface.
From the view point for optimal design of weight reduction, some technical requests such as the bearing weight performance of robot chassis, the function of noise suppression of framework, and other mechanical properties should be taken into account.
To reduce the weight of framework as possible if decrease of dynamic property of framework is not serious is the objective of optimal design of weight reduction.
Online since: November 2012
Authors: Hong Yuan Su, Ming Li, Dong Ping Wang, Feng Liu
., Ltd, Tangshan 063035,China
2School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China.
So, strong crosswind effect is one of the important factors of safety of train[1-2].
In paper [3], the aerodynamics properties of EMU CRH2 running at 200 km/h in strong wind were numerically simulated.
Zhang: Aerodynamics Properties of High-speed Train in Strong Wind.
Zhang: Train-crosswind and Strong Wind Countermeasure Research in Japan Flow Structure and aerodynamic properties of train under crosswind running in the embankment .
So, strong crosswind effect is one of the important factors of safety of train[1-2].
In paper [3], the aerodynamics properties of EMU CRH2 running at 200 km/h in strong wind were numerically simulated.
Zhang: Aerodynamics Properties of High-speed Train in Strong Wind.
Zhang: Train-crosswind and Strong Wind Countermeasure Research in Japan Flow Structure and aerodynamic properties of train under crosswind running in the embankment .
Online since: August 2013
Authors: Zulkarnain Abdul Latiff, Mohd Rozi Mohd Perang, N. Abdullah, Azhar Abdul Aziz
A number of experimental investigations have been reported with a wide variety of metal additives to improve the fuel properties and the engine performance, as well as to reduce emissions.
The effect of methanol-containing additive (MCA) on the emission of carbonyl compounds generated from the diesel engine was studied by Chao et al. [6] and it was observed that the emission factors for some of the carbonyl compounds with the use of MCA are higher than the values for those without the use of MCA.
Alicilar, Improvement of Diesel Fuel Properties By Using Additives, Energy Conversion And Management.
Ortega, Effect Of Ethers And Ether/Ethanol Additives On The Physicochemical Properties Of Diesel Fuel And On Engine Tests Fuel.
Pramanik, Properties and Use of Jatropha Curcas Oil and Diesel Fuel Blends In Compression Ignition Engine.
The effect of methanol-containing additive (MCA) on the emission of carbonyl compounds generated from the diesel engine was studied by Chao et al. [6] and it was observed that the emission factors for some of the carbonyl compounds with the use of MCA are higher than the values for those without the use of MCA.
Alicilar, Improvement of Diesel Fuel Properties By Using Additives, Energy Conversion And Management.
Ortega, Effect Of Ethers And Ether/Ethanol Additives On The Physicochemical Properties Of Diesel Fuel And On Engine Tests Fuel.
Pramanik, Properties and Use of Jatropha Curcas Oil and Diesel Fuel Blends In Compression Ignition Engine.