Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: April 2015
Authors: Khaled A. Abuhasel, Saleh A. Alkahtani, Mahmoud M. Tash
Magnesium (Mg) is normally used to improve the mechanical properties of the alloy through the precipitation of the Mg2Si and Al2CuMg intermetallics [1].
Heat treatment is one of the major factors used to enhance the mechanical properties of heat-treatable Al-Si alloys, through an optimization of both solution and aging heat treatment given to these alloys.
Eutectic silicon morphology, viz., particle size and shape, plays an important role in determining the mechanical properties of Al-Si alloy castings.
Once the responses, factors (6) and levels have been selected, see Table 3, the next step is to design the experimental runs.
The factors and their uncoded levels are listed in Table 3.
Heat treatment is one of the major factors used to enhance the mechanical properties of heat-treatable Al-Si alloys, through an optimization of both solution and aging heat treatment given to these alloys.
Eutectic silicon morphology, viz., particle size and shape, plays an important role in determining the mechanical properties of Al-Si alloy castings.
Once the responses, factors (6) and levels have been selected, see Table 3, the next step is to design the experimental runs.
The factors and their uncoded levels are listed in Table 3.
Online since: September 2014
Authors: Plato Kapranos, Reza Haghayeghi
It appears that by applying magnetic forces above the liquidus temperature, shearing effects result in finer grain sizes and consequent enhancement of properties.
By reducing the grain size not only mechanical properties are improved but also casting defects such as hot tearing susceptibility or macro-segregation are limited [1].
However, through the use of chemical refiners some undesired intermetallic compounds are produced, the chemical composition is changed and most of the above particles can turn into impurities adversely affecting the mechanical properties.
Recently, the AA7075 aluminium alloy has attracted attention due to its mechanical properties and various investigators have studied the possibility of processing this alloy in the semisolid state [4, 5, 6].
John [7] suggested that the growth restriction factor could be the reason of grain refinement but did not offer any ideas about the nature of nuclei.
By reducing the grain size not only mechanical properties are improved but also casting defects such as hot tearing susceptibility or macro-segregation are limited [1].
However, through the use of chemical refiners some undesired intermetallic compounds are produced, the chemical composition is changed and most of the above particles can turn into impurities adversely affecting the mechanical properties.
Recently, the AA7075 aluminium alloy has attracted attention due to its mechanical properties and various investigators have studied the possibility of processing this alloy in the semisolid state [4, 5, 6].
John [7] suggested that the growth restriction factor could be the reason of grain refinement but did not offer any ideas about the nature of nuclei.
Online since: April 2008
Authors: H. Du, S.M. Ding
Table 1 represents the dominant parameters affecting the quality of the
product.
Its mechanic properties are as table 2: Table 2 Mechanical properties of material material /b MPσ /s bσ σ 10 /%δ Hardness HBS Antirust aluminium 195 0.5 25 30 Experiment equipment and measure results.
The properties of experiment equipment as follows: The experiment was applied by using a J96CY-160 hydraulic pressure machine.
If the precision of simulation is to be improved, it is necessary to analyze the above factors and confirm the revised coefficient.
International Journal of Mechanical Sciences, 2001, 43: 2769-2790
Its mechanic properties are as table 2: Table 2 Mechanical properties of material material /b MPσ /s bσ σ 10 /%δ Hardness HBS Antirust aluminium 195 0.5 25 30 Experiment equipment and measure results.
The properties of experiment equipment as follows: The experiment was applied by using a J96CY-160 hydraulic pressure machine.
If the precision of simulation is to be improved, it is necessary to analyze the above factors and confirm the revised coefficient.
International Journal of Mechanical Sciences, 2001, 43: 2769-2790
Online since: July 2020
Authors: Akhyar Akhyar, Teuku Edisah Putra, Nurdin Ali, Husaini Husaini, Faleri Armia
Moreover, factors such as temperature, pressure, and operational conditions, if not corrected, will be able to affect and promote the likelihood of failure in this mechanism [5].
Table 1 shows the material properties of the material ASME SA 178.
Table 1 Mechanical properties of ASME SA 178 [12].
Mechanical Properties of Materials Value Unit Modulus Young (E) 130 [Gpa] Poison's ration (ϑ) 0,25 - Hardness, Rockwell B 77 [HRB] Yield Strength (σy) 179 [MPa] Tensile strength (σB) 324 [MPa] Shear Modulus (S) 70 [GPa] Microstructure Analysis.
Analysis of the Stress Intensity Factor.
Table 1 shows the material properties of the material ASME SA 178.
Table 1 Mechanical properties of ASME SA 178 [12].
Mechanical Properties of Materials Value Unit Modulus Young (E) 130 [Gpa] Poison's ration (ϑ) 0,25 - Hardness, Rockwell B 77 [HRB] Yield Strength (σy) 179 [MPa] Tensile strength (σB) 324 [MPa] Shear Modulus (S) 70 [GPa] Microstructure Analysis.
Analysis of the Stress Intensity Factor.
Online since: June 2014
Authors: Basirom Izzawati, M.S. Abdul Majid, Mohd Afendi, N.A.M. Amin, S. Nurhashima, M. Taufik
However, strength and failure behavior of adhesive joint depend on mechanical properties of the adhesive and stresses inside as it imposed by the constraint effect of stiff adherent.
The load apply to the adhesive joint is an important aspect to determine degree of strong properties of ductile adhesive.
This defect on surface of aluminum alloy can affect the strength of bonding between adhesive and aluminum alloy.
There are several factors that can affect the experiment results.
The load apply to the adhesive joint is an important aspect to determine degree of strong properties of ductile adhesive.
This defect on surface of aluminum alloy can affect the strength of bonding between adhesive and aluminum alloy.
There are several factors that can affect the experiment results.
Online since: July 2011
Authors: Hai Xia Li, Jian Feng Wan, Fan Mao Meng
Theoretical and Numerical Analysis of Waste Heat Utilization Device for Coal Gangue Brick Tunnel Kiln
Fanmao Menga, Jianfeng Wanb, Haixia Lic
School of Mechanical and Power Engineering, Henan Polytechnic University, No.2001, Shiji Avenue, Jiaozuo, Henan Province, 454003, P.R.
These complex situations are changed with the tunnel kiln type, the type and the performance of the material, the type of the waste heat utilization device, the arrangement of the ventilation system and other factors.
(4) ε1, ε2 and ε3 are given by the properties.
F1, F2 and F3 are given by the geometric properties of the section which includes the waste heat utilization device.
If the distance is short, it will affect the quality of the finished bricks.
These complex situations are changed with the tunnel kiln type, the type and the performance of the material, the type of the waste heat utilization device, the arrangement of the ventilation system and other factors.
(4) ε1, ε2 and ε3 are given by the properties.
F1, F2 and F3 are given by the geometric properties of the section which includes the waste heat utilization device.
If the distance is short, it will affect the quality of the finished bricks.
Online since: February 2015
Authors: Xiu Lan Li, Xin Jun Zhou, You Ping Ma, Wen Ling Xie
Introduction
Bimetallic composite material has been extensively employed as an advanced functional material in many fields because it has attractive mechanical properties.
During composite casting, interfacial bonding between matrix metal and liquid metal is the major factors determining corresponding mechanical properties of the composite material.
Heat diffusion rate was an important factor that influenced carbides size.
[10] Avcı A, İlkaya N, Şimşir M, Mechanical and microstructural properties of low-carbon steel-plate reinforced gray cast iron, J.
[14] Lu L, Soda H, McLean A, Microstructure and mechanical properties of Fe-Cr-C eutectic composites, Mater.
During composite casting, interfacial bonding between matrix metal and liquid metal is the major factors determining corresponding mechanical properties of the composite material.
Heat diffusion rate was an important factor that influenced carbides size.
[10] Avcı A, İlkaya N, Şimşir M, Mechanical and microstructural properties of low-carbon steel-plate reinforced gray cast iron, J.
[14] Lu L, Soda H, McLean A, Microstructure and mechanical properties of Fe-Cr-C eutectic composites, Mater.
Online since: July 2014
Authors: Min Li Zheng, Wei Zhang, Zhao Xing Zhang, Shu Qi Wang, Xiao Liang Cheng
The input parameters in the model are speed, feed, and depth of cut apart from tool geometry and material properties.
Residual stress is actually generated under the comprehensive influence of complex process and geometric variables, and other important factors, such as residual stress of the previous processing is also difficult to consider in the analytical model.
The constitutive parameters of the constitutive model are acquired by SHPB experiment that simulates the large strain and high strain rate properties of materials under the metal cutting environment.
Because the influence of some complex factors, such as cutting, cutting tool geometric parameters, cooling condition, and the recent high-profile microstructure change and size effect and so on, are needed to considered, and lots of research have been carried out at home and abroad[2].
For the residual stress is essentially the combined action of the plastic deformation, cutting temperature and phase transformation, the comprehensive prediction model considering these factors is badly needed to predict the residual stress accurately.
Residual stress is actually generated under the comprehensive influence of complex process and geometric variables, and other important factors, such as residual stress of the previous processing is also difficult to consider in the analytical model.
The constitutive parameters of the constitutive model are acquired by SHPB experiment that simulates the large strain and high strain rate properties of materials under the metal cutting environment.
Because the influence of some complex factors, such as cutting, cutting tool geometric parameters, cooling condition, and the recent high-profile microstructure change and size effect and so on, are needed to considered, and lots of research have been carried out at home and abroad[2].
For the residual stress is essentially the combined action of the plastic deformation, cutting temperature and phase transformation, the comprehensive prediction model considering these factors is badly needed to predict the residual stress accurately.
Online since: February 2011
Authors: S.N. Abdul Razak, A.R. Othman
Besides that, Ural et al [10] has studied the dependence of cell geometry, cell size, cell wall thickness, face sheet material and face sheet thickness on the physical/mechanical properties of honeycomb sandwich structures.
This section reviews some of the universal factors related to adhesive failures and the several types of failure occurred in adhesive bonding.
The weaknesses of the bonding properties between skin-core interface could be the result of the manufacturing imperfection and service loading such as inadvertent introduction of foreign matter or improper gluing at the interface, wave slamming and underwater explosions [5,24,28-29].
Hence, there was a need for systematic study to understand how the core and face sheet properties affect the compression behaviour of a debonded sandwich structure.
Bonding Performance There are lots of challenges involved in adhesive bonding that can affect the mechanical properties of the joint which are currently unresolved and to some extent, require reconsideration and improvement for development in aircraft structures.
This section reviews some of the universal factors related to adhesive failures and the several types of failure occurred in adhesive bonding.
The weaknesses of the bonding properties between skin-core interface could be the result of the manufacturing imperfection and service loading such as inadvertent introduction of foreign matter or improper gluing at the interface, wave slamming and underwater explosions [5,24,28-29].
Hence, there was a need for systematic study to understand how the core and face sheet properties affect the compression behaviour of a debonded sandwich structure.
Bonding Performance There are lots of challenges involved in adhesive bonding that can affect the mechanical properties of the joint which are currently unresolved and to some extent, require reconsideration and improvement for development in aircraft structures.
Online since: October 2014
Authors: Abu Bakar Sulong, Rozaiman Suffian Othman, Shahruddin Ibrahim
Reprocessability Index (RPI) is a metric that determines the mechanical properties of a component through design, product re-factor reliability, and suitability size.
RPI imparts a sense of how the physical properties of the material can be used to conserve resources and protect the natural environment [4].
Details related to the volume and natures of the components are the most significant factors that influence reuse of components.
The volume of which available from the i-Properties menu software Autodesk Inventor 2011 is 17,032.416 mm3 and the surface area is 15,892,104 mm2.
The volume of which available from the i-Properties menu software Autodesk Inventor 2011 is 10,4704.941 mm3 and the surface area is 43,175.829 mm2.
RPI imparts a sense of how the physical properties of the material can be used to conserve resources and protect the natural environment [4].
Details related to the volume and natures of the components are the most significant factors that influence reuse of components.
The volume of which available from the i-Properties menu software Autodesk Inventor 2011 is 17,032.416 mm3 and the surface area is 15,892,104 mm2.
The volume of which available from the i-Properties menu software Autodesk Inventor 2011 is 10,4704.941 mm3 and the surface area is 43,175.829 mm2.