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Online since: June 2013
Authors: Shun Ying Zhang, Lionel Leotoing, Dominique Guines, Eric Ragneau
Many factors, like temperature, strain rate or strain paths can affect considerably the material formability.
The Marciniak and Kuczynski model (known as the M-K model) is a widely used analytical tool but its initial geometrical imperfection factor is uncertain.
Moreover, the calibrating step of the initial geometrical imperfection factor which is essential for M-K models is unnecessary.
Fig. 1: Optimized cruciform shape Due to the symmetrical properties of the specimen, only one-quarter is considered in the finite element model (Fig. 2).
A difference exists between the three predictions and the type of non linearity affects the critical zone where the value of the major strain is minimum.
The Marciniak and Kuczynski model (known as the M-K model) is a widely used analytical tool but its initial geometrical imperfection factor is uncertain.
Moreover, the calibrating step of the initial geometrical imperfection factor which is essential for M-K models is unnecessary.
Fig. 1: Optimized cruciform shape Due to the symmetrical properties of the specimen, only one-quarter is considered in the finite element model (Fig. 2).
A difference exists between the three predictions and the type of non linearity affects the critical zone where the value of the major strain is minimum.
Online since: August 2023
Authors: Raden Bagus Seno Wulung, Syah Reihan Saputri
Furthermore, this paper investigates the shortest time which still maintains the standard properties of the product.
The quality of tires is influenced by compounds composed of chemicals and elastomers with specific compositions due to the required tire’s mechanical properties [1].
Factors that influence the curing process are curing temperature, curing pressure and curing time.
The chemicals are added to increase the properties of the rubber compound.
That condition makes the rubberized compound has soft properties and weak tensile strength.
The quality of tires is influenced by compounds composed of chemicals and elastomers with specific compositions due to the required tire’s mechanical properties [1].
Factors that influence the curing process are curing temperature, curing pressure and curing time.
The chemicals are added to increase the properties of the rubber compound.
That condition makes the rubberized compound has soft properties and weak tensile strength.
Online since: May 2020
Authors: V. Sydorets, O. Berdnikova, Ye. Polovetskyi, Ye. Titkov, A. Bernatskyi
It allows leveling a sharp gradient of mechanical properties usually observed in dissimilar joints.
According to wave-particle duality, an electron beam can simultaneously exhibit and the properties of flow of charged particles and the properties of an electromagnetic wave.
They contain information about the properties of the crystal.
Titkov, Effect of Structure on Properties of Al2O3 and Al (or Ti) Mechanical Mixture Coatings Produced by Multichamber Detonation Spraying Method, Paton Weld.
Titkov, Effect of Nano-Structured Factors on the Properties of the Coatings Produced by Detonation Spraying Method, in: A.D.
According to wave-particle duality, an electron beam can simultaneously exhibit and the properties of flow of charged particles and the properties of an electromagnetic wave.
They contain information about the properties of the crystal.
Titkov, Effect of Structure on Properties of Al2O3 and Al (or Ti) Mechanical Mixture Coatings Produced by Multichamber Detonation Spraying Method, Paton Weld.
Titkov, Effect of Nano-Structured Factors on the Properties of the Coatings Produced by Detonation Spraying Method, in: A.D.
Online since: February 2021
Authors: Farid Sebaai, Xiu Mei Xu, Efrain Altamirano-Sanchez, Murat Pak, Christie Delvaux, Geert Mannaert
This preliminary finding is contradictory to the prevalent models that are based on equilibrium force balance between capillary and mechanical interactions.
This, however, is an impossible mission as pattern collapse can be affected by many different factors, including mechanical and wetting property of the structures, surface tension force, capillary pressure, wet/dry adhesion, geometrical arrangement, dewetting dynamics, capillary buckling and viscous dissipation.
Combined with mechanical modeling, collapse rates can be directly correlated with the intrinsic bending stiffness of the structures.
In this work, we show a recent development of new test structures that allow us to investigate how geometrical arrangement can affect dewetting dynamics and pattern collapse.
This, however, is an impossible mission as pattern collapse can be affected by many different factors, including mechanical and wetting property of the structures, surface tension force, capillary pressure, wet/dry adhesion, geometrical arrangement, dewetting dynamics, capillary buckling and viscous dissipation.
Combined with mechanical modeling, collapse rates can be directly correlated with the intrinsic bending stiffness of the structures.
In this work, we show a recent development of new test structures that allow us to investigate how geometrical arrangement can affect dewetting dynamics and pattern collapse.
Online since: July 2019
Authors: Qing Meng Zeng, Hao Chen, Bao Tong Chai
It has good process performance, good comprehensive mechanical properties and low price, but it has poor hardenability and is prone to insufficient toughness.
After the rotor is cracked, it affects the stiffness and critical speed of the rotor, which in turn affects the vibration characteristics of the rotor.
The heat treatment process is to heat the metal in the corresponding medium and cool it in different media to realize the process of changing the properties of the metal.
When the metal is affected by any factor, its performance will change to meet the needs of engineering production.
During the cutting process, due to factors such as cutting conditions, metal and processed materials, products with different finishes are produced.
After the rotor is cracked, it affects the stiffness and critical speed of the rotor, which in turn affects the vibration characteristics of the rotor.
The heat treatment process is to heat the metal in the corresponding medium and cool it in different media to realize the process of changing the properties of the metal.
When the metal is affected by any factor, its performance will change to meet the needs of engineering production.
During the cutting process, due to factors such as cutting conditions, metal and processed materials, products with different finishes are produced.
Online since: December 2012
Authors: Yuan Pan
Introduction
Fully-automatic hydraulic press is mainly used for pressing of ceramic tiles, and it is one of the key mechanical equipments of ceramic wall and floor tiles production line.
The characteristic coefficient and mechanical properties are as follows: Mass density: 7800kg/m3; elastic modulus: 2 e +11 Pa; Poisson's ratio: 0.32; yield limit: 310MPa; intensity limit: 570MPa.
Appropriate constraint handling will directly affect the calculation results, so it must be as close as possible to the actual.
The Shape Correction Factor: The shape correction factor F depends on the geometry of the component and defect.
Such as when the girder’s cracks extend from 0.5㎜ (a0) to 100㎜ (ac), the service life is Np*=4.62×105(times) Correction Factor: The shape correction factor F depends on the geometry of the component and defect.
The characteristic coefficient and mechanical properties are as follows: Mass density: 7800kg/m3; elastic modulus: 2 e +11 Pa; Poisson's ratio: 0.32; yield limit: 310MPa; intensity limit: 570MPa.
Appropriate constraint handling will directly affect the calculation results, so it must be as close as possible to the actual.
The Shape Correction Factor: The shape correction factor F depends on the geometry of the component and defect.
Such as when the girder’s cracks extend from 0.5㎜ (a0) to 100㎜ (ac), the service life is Np*=4.62×105(times) Correction Factor: The shape correction factor F depends on the geometry of the component and defect.
Online since: August 2015
Authors: Agripa Hamweendo, Terence Malama, Ionel Botef
However, there are inherent difficulties in relating particle deposition characteristics with influencing factors of the deposition process.
For this reason, this paper develops a simulation process for Ti and Ni particles under influence of many factors using molecular dynamics.
Low temperatures are useful in generating unique material properties, which otherwise cannot be obtained by traditional methods.
It has been applied in the study of, for example, defect formation and migration, fracture, grain boundaries, structural transformations, radiation damage, elastic and plastic mechanical properties, friction, shock waves, molecular crystals and epitaxial growth [11], [15].
The objective of this work is to understand how influencing factors, such as incident velocity, particle size and temperature affect the deposition process.
For this reason, this paper develops a simulation process for Ti and Ni particles under influence of many factors using molecular dynamics.
Low temperatures are useful in generating unique material properties, which otherwise cannot be obtained by traditional methods.
It has been applied in the study of, for example, defect formation and migration, fracture, grain boundaries, structural transformations, radiation damage, elastic and plastic mechanical properties, friction, shock waves, molecular crystals and epitaxial growth [11], [15].
The objective of this work is to understand how influencing factors, such as incident velocity, particle size and temperature affect the deposition process.
Online since: February 2012
Authors: Mohammad Hosseien Fathi, Ali Nemati, S. Adibnia, S. Baghshahi
As a matter of fact, HA shows good biocompatibility with human body but its applications are limited to non-load bearing areas due to its low mechanical properties [2].
In addition, nanostructured HA is expected to have better mechanical and bioactivity properties in comparison with conventional HA used in implant systems.
In this study, the effects of bioglass addition into HA on bioactivity properties were also investigated.
Some of the factors that might affect the agglomeration of particles are the tendency of the system to minimize the total surface area and the size of particles produced.
It is expected that this composite with regard to their desirable bioactivity might be a suitable candidate for fabrication of composite scaffold with specific features such as both enough mechanical and bioresorptional properties.
In addition, nanostructured HA is expected to have better mechanical and bioactivity properties in comparison with conventional HA used in implant systems.
In this study, the effects of bioglass addition into HA on bioactivity properties were also investigated.
Some of the factors that might affect the agglomeration of particles are the tendency of the system to minimize the total surface area and the size of particles produced.
It is expected that this composite with regard to their desirable bioactivity might be a suitable candidate for fabrication of composite scaffold with specific features such as both enough mechanical and bioresorptional properties.
Online since: January 2016
Authors: Sufizar Ahmad, Nur Suliani Abdul Manaf, Rosdi Ibrahim
The physical properties of CoCrMo foam was analyzed by porosity and bulk density test that was Archimedes principles.
To achieve metal foam with an acceptable open-cell structure, the properties of the slurry, especially rheological properties are highly important and require precise control.
The particle size and shape of the raw powder, the type and content of the binder, the ratio of solid and liquid content are among of the factors that affect the rheological properties of the slurry [9].
For the upcoming research the mechanical properties of CoCrMo foams will be analyse in the study.
Wattanapornphan, Rheological properties of commercially pure titanium slurry for metallic foam production using replica impregnation method, Powder Technol. 266 (2014) 129–134
To achieve metal foam with an acceptable open-cell structure, the properties of the slurry, especially rheological properties are highly important and require precise control.
The particle size and shape of the raw powder, the type and content of the binder, the ratio of solid and liquid content are among of the factors that affect the rheological properties of the slurry [9].
For the upcoming research the mechanical properties of CoCrMo foams will be analyse in the study.
Wattanapornphan, Rheological properties of commercially pure titanium slurry for metallic foam production using replica impregnation method, Powder Technol. 266 (2014) 129–134
Online since: April 2013
Authors: Yulfian Aminanda, Kassim A. Abdullah, Jaffar S. Mohamed Ali
Abdullah1,b and Yulfian Aminanda1,c
1Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O Box 10, 50728, Kuala Lumpur, Malaysia.
However, these properties are affected by many factors, such as; material type, cross section, geometry, thickness, length, weight, etc.
The structural geometry of the specimen and the properties of the material used were the same for both experimental and numerical studies.
Moreover the same material properties (aluminium alloy AA6063 T6) were used in order to compare the efficiency, in term of absorbed energy, of each tube.
Cross section and geometry of the structures affect considerably both the energy absorption and the collapse behaviour.
However, these properties are affected by many factors, such as; material type, cross section, geometry, thickness, length, weight, etc.
The structural geometry of the specimen and the properties of the material used were the same for both experimental and numerical studies.
Moreover the same material properties (aluminium alloy AA6063 T6) were used in order to compare the efficiency, in term of absorbed energy, of each tube.
Cross section and geometry of the structures affect considerably both the energy absorption and the collapse behaviour.